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/wp-includes/ -> general-template.php (source)

   1  <?php
   2  /**
   3   * General template tags that can go anywhere in a template.
   4   *
   5   * @package WordPress
   6   * @subpackage Template
   7   */
   8  
   9  /**
  10   * Loads header template.
  11   *
  12   * Includes the header template for a theme or if a name is specified then a
  13   * specialized header will be included.
  14   *
  15   * For the parameter, if the file is called "header-special.php" then specify
  16   * "special".
  17   *
  18   * @since 1.5.0
  19   * @since 5.5.0 A return value was added.
  20   * @since 5.5.0 The `$args` parameter was added.
  21   *
  22   * @param string|null $name The name of the specialized header. Default null.
  23   * @param array       $args Optional. Additional arguments passed to the header template.
  24   *                          Default empty array.
  25   * @return void|false Void on success, false if the template does not exist.
  26   */
  27  function get_header( $name = null, $args = array() ) {
  28      /**
  29       * Fires before the header template file is loaded.
  30       *
  31       * @since 2.1.0
  32       * @since 2.8.0 The `$name` parameter was added.
  33       * @since 5.5.0 The `$args` parameter was added.
  34       *
  35       * @param string|null $name Name of the specific header file to use. Null for the default header.
  36       * @param array       $args Additional arguments passed to the header template.
  37       */
  38      do_action( 'get_header', $name, $args );
  39  
  40      $templates = array();
  41      $name      = (string) $name;
  42      if ( '' !== $name ) {
  43          $templates[] = "header-{$name}.php";
  44      }
  45  
  46      $templates[] = 'header.php';
  47  
  48      if ( ! locate_template( $templates, true, true, $args ) ) {
  49          return false;
  50      }
  51  }
  52  
  53  /**
  54   * Loads footer template.
  55   *
  56   * Includes the footer template for a theme or if a name is specified then a
  57   * specialized footer will be included.
  58   *
  59   * For the parameter, if the file is called "footer-special.php" then specify
  60   * "special".
  61   *
  62   * @since 1.5.0
  63   * @since 5.5.0 A return value was added.
  64   * @since 5.5.0 The `$args` parameter was added.
  65   *
  66   * @param string|null $name The name of the specialized footer. Default null.
  67   * @param array       $args Optional. Additional arguments passed to the footer template.
  68   *                          Default empty array.
  69   * @return void|false Void on success, false if the template does not exist.
  70   */
  71  function get_footer( $name = null, $args = array() ) {
  72      /**
  73       * Fires before the footer template file is loaded.
  74       *
  75       * @since 2.1.0
  76       * @since 2.8.0 The `$name` parameter was added.
  77       * @since 5.5.0 The `$args` parameter was added.
  78       *
  79       * @param string|null $name Name of the specific footer file to use. Null for the default footer.
  80       * @param array       $args Additional arguments passed to the footer template.
  81       */
  82      do_action( 'get_footer', $name, $args );
  83  
  84      $templates = array();
  85      $name      = (string) $name;
  86      if ( '' !== $name ) {
  87          $templates[] = "footer-{$name}.php";
  88      }
  89  
  90      $templates[] = 'footer.php';
  91  
  92      if ( ! locate_template( $templates, true, true, $args ) ) {
  93          return false;
  94      }
  95  }
  96  
  97  /**
  98   * Loads sidebar template.
  99   *
 100   * Includes the sidebar template for a theme or if a name is specified then a
 101   * specialized sidebar will be included.
 102   *
 103   * For the parameter, if the file is called "sidebar-special.php" then specify
 104   * "special".
 105   *
 106   * @since 1.5.0
 107   * @since 5.5.0 A return value was added.
 108   * @since 5.5.0 The `$args` parameter was added.
 109   *
 110   * @param string|null $name The name of the specialized sidebar. Default null.
 111   * @param array       $args Optional. Additional arguments passed to the sidebar template.
 112   *                          Default empty array.
 113   * @return void|false Void on success, false if the template does not exist.
 114   */
 115  function get_sidebar( $name = null, $args = array() ) {
 116      /**
 117       * Fires before the sidebar template file is loaded.
 118       *
 119       * @since 2.2.0
 120       * @since 2.8.0 The `$name` parameter was added.
 121       * @since 5.5.0 The `$args` parameter was added.
 122       *
 123       * @param string|null $name Name of the specific sidebar file to use. Null for the default sidebar.
 124       * @param array       $args Additional arguments passed to the sidebar template.
 125       */
 126      do_action( 'get_sidebar', $name, $args );
 127  
 128      $templates = array();
 129      $name      = (string) $name;
 130      if ( '' !== $name ) {
 131          $templates[] = "sidebar-{$name}.php";
 132      }
 133  
 134      $templates[] = 'sidebar.php';
 135  
 136      if ( ! locate_template( $templates, true, true, $args ) ) {
 137          return false;
 138      }
 139  }
 140  
 141  /**
 142   * Loads a template part into a template.
 143   *
 144   * Provides a simple mechanism for child themes to overload reusable sections of code
 145   * in the theme.
 146   *
 147   * Includes the named template part for a theme or if a name is specified then a
 148   * specialized part will be included. If the theme contains no {slug}.php file
 149   * then no template will be included.
 150   *
 151   * The template is included using require, not require_once, so you may include the
 152   * same template part multiple times.
 153   *
 154   * For the $name parameter, if the file is called "{slug}-special.php" then specify
 155   * "special".
 156   *
 157   * @since 3.0.0
 158   * @since 5.5.0 A return value was added.
 159   * @since 5.5.0 The `$args` parameter was added.
 160   *
 161   * @param string      $slug The slug name for the generic template.
 162   * @param string|null $name Optional. The name of the specialized template. Default null.
 163   * @param array       $args Optional. Additional arguments passed to the template.
 164   *                          Default empty array.
 165   * @return void|false Void on success, false if the template does not exist.
 166   */
 167  function get_template_part( $slug, $name = null, $args = array() ) {
 168      /**
 169       * Fires before the specified template part file is loaded.
 170       *
 171       * The dynamic portion of the hook name, `$slug`, refers to the slug name
 172       * for the generic template part.
 173       *
 174       * @since 3.0.0
 175       * @since 5.5.0 The `$args` parameter was added.
 176       *
 177       * @param string      $slug The slug name for the generic template.
 178       * @param string|null $name The name of the specialized template
 179       *                          or null if there is none.
 180       * @param array       $args Additional arguments passed to the template.
 181       */
 182      do_action( "get_template_part_{$slug}", $slug, $name, $args );
 183  
 184      $templates = array();
 185      $name      = (string) $name;
 186      if ( '' !== $name ) {
 187          $templates[] = "{$slug}-{$name}.php";
 188      }
 189  
 190      $templates[] = "{$slug}.php";
 191  
 192      /**
 193       * Fires before an attempt is made to locate and load a template part.
 194       *
 195       * @since 5.2.0
 196       * @since 5.5.0 The `$args` parameter was added.
 197       *
 198       * @param string   $slug      The slug name for the generic template.
 199       * @param string   $name      The name of the specialized template
 200       *                            or an empty string if there is none.
 201       * @param string[] $templates Array of template files to search for, in order.
 202       * @param array    $args      Additional arguments passed to the template.
 203       */
 204      do_action( 'get_template_part', $slug, $name, $templates, $args );
 205  
 206      if ( ! locate_template( $templates, true, false, $args ) ) {
 207          return false;
 208      }
 209  }
 210  
 211  /**
 212   * Displays search form.
 213   *
 214   * Will first attempt to locate the searchform.php file in either the child or
 215   * the parent, then load it. If it doesn't exist, then the default search form
 216   * will be displayed. The default search form is HTML, which will be displayed.
 217   * There is a filter applied to the search form HTML in order to edit or replace
 218   * it. The filter is {@see 'get_search_form'}.
 219   *
 220   * This function is primarily used by themes which want to hardcode the search
 221   * form into the sidebar and also by the search widget in WordPress.
 222   *
 223   * There is also an action that is called whenever the function is run called,
 224   * {@see 'pre_get_search_form'}. This can be useful for outputting JavaScript that the
 225   * search relies on or various formatting that applies to the beginning of the
 226   * search. To give a few examples of what it can be used for.
 227   *
 228   * @since 2.7.0
 229   * @since 5.2.0 The `$args` array parameter was added in place of an `$echo` boolean flag.
 230   *
 231   * @param array $args {
 232   *     Optional. Array of display arguments.
 233   *
 234   *     @type bool   $echo       Whether to echo or return the form. Default true.
 235   *     @type string $aria_label ARIA label for the search form. Useful to distinguish
 236   *                              multiple search forms on the same page and improve
 237   *                              accessibility. Default empty.
 238   * }
 239   * @return string|void Search form HTML if 'echo' is false, nothing otherwise.
 240   * @phpstan-param array<string, mixed>|bool $args
 241   * @phpstan-return (
 242   *     $args is array{ echo: false|0|''|'0', ... }
 243   *         ? string
 244   *         : ( $args is false|0|''|'0' ? string : void )
 245   * )
 246   */
 247  function get_search_form( $args = array() ) {
 248      /**
 249       * Fires before the search form is retrieved, at the start of get_search_form().
 250       *
 251       * @since 2.7.0 as 'get_search_form' action.
 252       * @since 3.6.0
 253       * @since 5.5.0 The `$args` parameter was added.
 254       *
 255       * @link https://core.trac.wordpress.org/ticket/19321
 256       *
 257       * @param array $args The array of arguments for building the search form.
 258       *                    See get_search_form() for information on accepted arguments.
 259       */
 260      do_action( 'pre_get_search_form', $args );
 261  
 262      $echo = true;
 263  
 264      if ( ! is_array( $args ) ) {
 265          /*
 266           * Back compat: to ensure previous uses of get_search_form() continue to
 267           * function as expected, we handle a value for the boolean $echo param removed
 268           * in 5.2.0. Then we deal with the $args array and cast its defaults.
 269           */
 270          $echo = (bool) $args;
 271  
 272          // Set an empty array and allow default arguments to take over.
 273          $args = array();
 274      }
 275  
 276      // Defaults are to echo and to output no custom label on the form.
 277      $defaults = array(
 278          'echo'       => $echo,
 279          'aria_label' => '',
 280      );
 281  
 282      $args = wp_parse_args( $args, $defaults );
 283  
 284      /**
 285       * Filters the array of arguments used when generating the search form.
 286       *
 287       * @since 5.2.0
 288       *
 289       * @param array $args The array of arguments for building the search form.
 290       *                    See get_search_form() for information on accepted arguments.
 291       */
 292      $args = apply_filters( 'search_form_args', $args );
 293  
 294      // Ensure that the filtered arguments contain all required default values.
 295      $args = array_merge( $defaults, $args );
 296  
 297      $format = current_theme_supports( 'html5', 'search-form' ) ? 'html5' : 'xhtml';
 298  
 299      /**
 300       * Filters the HTML format of the search form.
 301       *
 302       * @since 3.6.0
 303       * @since 5.5.0 The `$args` parameter was added.
 304       *
 305       * @param string $format The type of markup to use in the search form.
 306       *                       Accepts 'html5', 'xhtml'.
 307       * @param array  $args   The array of arguments for building the search form.
 308       *                       See get_search_form() for information on accepted arguments.
 309       */
 310      $format = apply_filters( 'search_form_format', $format, $args );
 311  
 312      $search_form_template = locate_template( 'searchform.php' );
 313  
 314      if ( '' !== $search_form_template ) {
 315          ob_start();
 316          require $search_form_template;
 317          $form = ob_get_clean();
 318      } else {
 319          // Build a string containing an aria-label to use for the search form.
 320          if ( $args['aria_label'] ) {
 321              $aria_label = 'aria-label="' . esc_attr( $args['aria_label'] ) . '" ';
 322          } else {
 323              /*
 324               * If there's no custom aria-label, we can set a default here. At the
 325               * moment it's empty as there's uncertainty about what the default should be.
 326               */
 327              $aria_label = '';
 328          }
 329  
 330          if ( 'html5' === $format ) {
 331              $form = '<form role="search" ' . $aria_label . 'method="get" class="search-form" action="' . esc_url( home_url( '/' ) ) . '">
 332                  <label>
 333                      <span class="screen-reader-text">' .
 334                      /* translators: Hidden accessibility text. */
 335                      _x( 'Search for:', 'label' ) .
 336                      '</span>
 337                      <input type="search" class="search-field" placeholder="' . esc_attr_x( 'Search &hellip;', 'placeholder' ) . '" value="' . get_search_query() . '" name="s" />
 338                  </label>
 339                  <input type="submit" class="search-submit" value="' . esc_attr_x( 'Search', 'submit button' ) . '" />
 340              </form>';
 341          } else {
 342              $form = '<form role="search" ' . $aria_label . 'method="get" id="searchform" class="searchform" action="' . esc_url( home_url( '/' ) ) . '">
 343                  <div>
 344                      <label class="screen-reader-text" for="s">' .
 345                      /* translators: Hidden accessibility text. */
 346                      _x( 'Search for:', 'label' ) .
 347                      '</label>
 348                      <input type="text" value="' . get_search_query() . '" name="s" id="s" />
 349                      <input type="submit" id="searchsubmit" value="' . esc_attr_x( 'Search', 'submit button' ) . '" />
 350                  </div>
 351              </form>';
 352          }
 353      }
 354  
 355      /**
 356       * Filters the HTML output of the search form.
 357       *
 358       * @since 2.7.0
 359       * @since 5.5.0 The `$args` parameter was added.
 360       *
 361       * @param string $form The search form HTML output.
 362       * @param array  $args The array of arguments for building the search form.
 363       *                     See get_search_form() for information on accepted arguments.
 364       */
 365      $result = apply_filters( 'get_search_form', $form, $args );
 366  
 367      if ( null === $result ) {
 368          $result = $form;
 369      }
 370  
 371      if ( $args['echo'] ) {
 372          echo $result;
 373      } else {
 374          return $result;
 375      }
 376  }
 377  
 378  
 379  /**
 380   * Retrieves the markup for an accessible tooltip.
 381   *
 382   * Returns a button with an accessible name popover hint.
 383   *
 384   * @since 7.1.0
 385   *
 386   * @param string $content Plain-text tooltip content. An empty value returns an empty string.
 387   * @param array  $args {
 388   *     Optional. Arguments for building the tooltip.
 389   *
 390   *     @type string $id          Unique ID for the popover element. Default is a
 391   *                               generated unique ID.
 392   *     @type string $button      Existing `button` or `a` markup. Used instead of generated button.
 393   *                               Default empty string.
 394   *     @type string $label       Not used for tooltips.
 395   *     @type string $close_label Not used for tooltips.
 396   *     @type string $icon        Dashicons icon class for the toggle button.
 397   *                               Default 'dashicons-editor-help'. Should match the control's
 398   *                               visible label.
 399   *     @type string $class       Additional class(es) for the wrapping element.
 400   *                               Default empty.
 401   * }
 402   * @return string Tooltip HTML markup, or an empty string when no content is provided.
 403   */
 404  function wp_get_tooltip( $content, $args = array() ) {
 405      $args['type'] = 'tooltip';
 406      return wp_get_tooltip_helper( $content, $args );
 407  }
 408  
 409  /**
 410   * Retrieves the markup for an accessible toggle tip.
 411   *
 412   * Returns a button and an action triggered toggle tip with `$content`.
 413   *
 414   * @since 7.1.0
 415   *
 416   * @param string $content Plain-text tooltip content. An empty value returns an empty string.
 417   * @param array  $args {
 418   *     Optional. Arguments for building the tooltip.
 419   *
 420   *     @type string $id          Unique ID for the popover element. Default is a
 421   *                               generated unique ID.
 422   *     @type string $button      Existing `button` markup. Used instead of generated button.
 423   *                               Default empty string.
 424   *     @type string $label       Accessible label for the toggle button.
 425   *                               Default 'Help', matching the default icon.
 426   *                               Ignored for tooltips.
 427   *     @type string $close_label Accessible label for the close button. Default 'Close'.
 428   *     @type string $icon        Dashicons icon class for the toggle button.
 429   *                               Default 'dashicons-editor-help'. Should match the control's
 430   *                               visible label.
 431   *     @type string $class       Additional class(es) for the wrapping element.
 432   *                               Default empty.
 433   * }
 434   * @return string Toggletip HTML markup, or an empty string when no content is provided.
 435   */
 436  function wp_get_toggletip( $content, $args = array() ) {
 437      $args['type'] = 'toggletip';
 438      return wp_get_tooltip_helper( $content, $args );
 439  }
 440  
 441  /**
 442   * Retrieves the markup for an accessible tooltip or toggletip.
 443   *
 444   * Returns a button and either a hover/focus triggered tooltip popover or an action
 445   * triggered toggle tip. Enqueue the `wp-tooltip` style and script where it is used.
 446   * Tooltips are used to show the accessible name of a control.
 447   * Toggletips are used for longer supporting text explaining context.
 448   *
 449   * @since 7.1.0
 450   *
 451   * @param string $content Plain-text tooltip content. An empty value returns an empty string.
 452   * @param array  $args {
 453   *     Optional. Arguments for building the tooltip.
 454   *
 455   *     @type string $id          Unique ID for the popover element. Default is a
 456   *                               generated unique ID.
 457   *     @type string $button      Existing `button` or `a` markup. Used instead of generated button.
 458   *                               Default empty string.
 459   *     @type string $label       Accessible label for the toggle button.
 460   *                               Default 'Help', matching the default icon.
 461   *                               Ignored for tooltips.
 462   *     @type string $close_label Accessible label for the close button. Default 'Close'.
 463   *     @type string $icon        Dashicons icon class for the toggle button.
 464   *                               Default 'dashicons-editor-help'. Should match the control's
 465   *                               visible label.
 466   *     @type string $class       Additional class(es) for the wrapping element.
 467   *                               Default empty.
 468   *     @type string $type        Type of tooltip: either `tooltip` or `toggletip`.
 469   *                               Default 'tooltip'.
 470   * }
 471   * @return string Tooltip HTML markup, or an empty string when no content is provided.
 472   */
 473  function wp_get_tooltip_helper( $content, $args = array() ) {
 474      $content = trim( (string) $content );
 475  
 476      if ( '' === $content ) {
 477          return '';
 478      }
 479  
 480      $defaults = array(
 481          'id'          => wp_unique_id( 'wp-tooltip-' ),
 482          'button'      => '',
 483          'label'       => __( 'Help' ),
 484          'close_label' => __( 'Close' ),
 485          'icon'        => 'dashicons-editor-help',
 486          'class'       => '',
 487          'type'        => 'tooltip',
 488      );
 489  
 490      $args = wp_parse_args( $args, $defaults );
 491  
 492      $classes = ( 'tooltip' === $args['type'] ) ? 'wp-tooltip wp-is-tooltip' : 'wp-tooltip wp-is-toggletip';
 493      if ( '' !== $args['class'] ) {
 494          $classes .= ' ' . $args['class'];
 495      }
 496  
 497      $icon = ( $args['icon'] ) ? trim( $args['icon'] ) : $defaults['icon'];
 498      $id   = ( $args['id'] ) ? $args['id'] : $defaults['id'];
 499  
 500      // Tooltips use the content as the accessible name; toggletips use the label.
 501      $label = ( 'tooltip' === $args['type'] ) ? wp_strip_all_tags( $content, true ) : $args['label'];
 502  
 503      /*
 504       * The generated button is a plain skeleton. Every dynamic attribute is
 505       * added through the tag processor below, so caller-supplied markup is
 506       * never scanned or substituted and a percent sign in custom markup,
 507       * such as a percent-encoded URL, is never treated as a conversion
 508       * specification.
 509       */
 510      $default_button = '<button type="button"><span></span></button>';
 511  
 512      $is_default = ! $args['button'];
 513      $button     = ( $args['button'] ) ? $args['button'] : $default_button;
 514  
 515      // The accepted root element is a `button`, or an `a` for tooltips.
 516      $tag       = false;
 517      $processor = new WP_HTML_Tag_Processor( $button );
 518      if ( true === $processor->next_tag( 'button' ) ) {
 519          $tag = 'button';
 520      } else {
 521          $processor = new WP_HTML_Tag_Processor( $button );
 522          if ( 'tooltip' === $args['type'] && true === $processor->next_tag( 'a' ) ) {
 523              $tag = 'a';
 524          }
 525      }
 526  
 527      if ( false === $tag ) {
 528          // Button HTML passed was not valid. Reset to default.
 529          $is_default = true;
 530          $button     = $default_button;
 531          $processor  = new WP_HTML_Tag_Processor( $button );
 532          $processor->next_tag( 'button' );
 533          $tag = 'button';
 534      }
 535  
 536      /*
 537       * Attributes that apply to every accepted button are added in one pass.
 538       * Attributes that name the control are only added when the caller's
 539       * markup did not already provide them.
 540       */
 541      if ( null === $processor->get_attribute( 'aria-label' ) ) {
 542          $processor->set_attribute( 'aria-label', $label );
 543      }
 544      $processor->add_class( 'wp-tooltip__toggle' );
 545      if ( 'button' === $tag && 'tooltip' !== $args['type'] ) {
 546          $processor->set_attribute( 'popovertarget', $id );
 547          $processor->set_attribute( 'aria-haspopup', 'dialog' );
 548      }
 549  
 550      // The generated button also carries the dashicon on its inner span.
 551      if ( $is_default && true === $processor->next_tag( 'span' ) ) {
 552          $processor->set_attribute( 'class', 'dashicons ' . $icon );
 553          $processor->set_attribute( 'aria-hidden', 'true' );
 554      }
 555  
 556      $button = $processor->get_updated_html();
 557  
 558      /*
 559       * The markup only uses phrasing content so it is valid when nested
 560       * in a phrasing context. Sectioning content (e.g. `div`, `dialog`) will
 561       * cause the parser to close an open `p`, creating an empty and breaking
 562       * the layout. See #65660.
 563       */
 564      if ( 'tooltip' === $args['type'] ) {
 565          $markup = sprintf(
 566              '<span class="%1$s">
 567                  %6$s
 568                  <span popover="hint" id="%2$s" class="wp-tooltip__bubble" role="tooltip">' .
 569                      '<span id="%2$s-text" class="wp-tooltip__text">%5$s</span>' .
 570                  '</span>' .
 571              '</span>',
 572              esc_attr( $classes ),
 573              esc_attr( $id ),
 574              esc_attr( $label ),
 575              esc_attr( $icon ),
 576              esc_html( $content ),
 577              $button,
 578          );
 579      } else {
 580          /*
 581           * A `span` with `role="dialog"` is used instead of a `dialog` element to keep the
 582           * markup as phrasing content. The `aria-label`, `tabindex`, and `autofocus`
 583           * attributes reproduce the accessible name and focus handling of the native element.
 584           */
 585          $markup = sprintf(
 586              '<span class="%1$s">
 587                  %8$s
 588                  <span popover="hint" id="%2$s-hint" class="wp-tooltip__bubble wp-tooltip__hint" aria-hidden="true">' .
 589                      '<span class="wp-tooltip__text">%7$s</span>' .
 590                  '</span>' .
 591                  '<span popover="auto" id="%2$s" class="wp-tooltip__bubble" role="dialog" aria-label="%3$s" tabindex="-1" autofocus>' .
 592                      '<span id="%2$s-text" class="wp-tooltip__text">%5$s</span>' .
 593                      '<button type="button" class="wp-tooltip__close" popovertarget="%2$s" popovertargetaction="hide" aria-label="%6$s">' .
 594                          '<span class="dashicons dashicons-no-alt" aria-hidden="true"></span>' .
 595                      '</button>' .
 596                  '</span>' .
 597              '</span>',
 598              esc_attr( $classes ),
 599              esc_attr( $id ),
 600              esc_attr( $label ),
 601              esc_attr( $icon ),
 602              esc_html( $content ),
 603              esc_attr( $args['close_label'] ),
 604              esc_html( $args['label'] ),
 605              $button,
 606          );
 607      }
 608  
 609      return $markup;
 610  }
 611  
 612  /**
 613   * Displays the Log In/Out link.
 614   *
 615   * Displays a link, which allows users to navigate to the Log In page to log in
 616   * or log out depending on whether they are currently logged in.
 617   *
 618   * @since 1.5.0
 619   *
 620   * @param string $redirect Optional path to redirect to on login/logout.
 621   * @param bool   $display  Default to echo and not return the link.
 622   * @return string|void Log in/out link if `$display` is false, nothing otherwise.
 623   * @phpstan-return ( $display is true ? void : string )
 624   */
 625  function wp_loginout( $redirect = '', $display = true ) {
 626      if ( ! is_user_logged_in() ) {
 627          $link = '<a href="' . esc_url( wp_login_url( $redirect ) ) . '">' . __( 'Log in' ) . '</a>';
 628      } else {
 629          $link = '<a href="' . esc_url( wp_logout_url( $redirect ) ) . '">' . __( 'Log out' ) . '</a>';
 630      }
 631  
 632      if ( $display ) {
 633          /**
 634           * Filters the HTML output for the Log In/Log Out link.
 635           *
 636           * @since 1.5.0
 637           *
 638           * @param string $link The HTML link content.
 639           */
 640          echo apply_filters( 'loginout', $link );
 641      } else {
 642          /** This filter is documented in wp-includes/general-template.php */
 643          return apply_filters( 'loginout', $link );
 644      }
 645  }
 646  
 647  /**
 648   * Retrieves the logout URL.
 649   *
 650   * Returns the URL that allows the user to log out of the site.
 651   *
 652   * @since 2.7.0
 653   *
 654   * @param string $redirect Path to redirect to on logout.
 655   * @return string The logout URL. Note: HTML-encoded via esc_html() in wp_nonce_url().
 656   */
 657  function wp_logout_url( $redirect = '' ) {
 658      $args = array();
 659      if ( ! empty( $redirect ) ) {
 660          $args['redirect_to'] = urlencode( $redirect );
 661      }
 662  
 663      $logout_url = add_query_arg( $args, site_url( 'wp-login.php?action=logout', 'login' ) );
 664      $logout_url = wp_nonce_url( $logout_url, 'log-out' );
 665  
 666      /**
 667       * Filters the logout URL.
 668       *
 669       * @since 2.8.0
 670       *
 671       * @param string $logout_url The HTML-encoded logout URL.
 672       * @param string $redirect   Path to redirect to on logout.
 673       */
 674      return apply_filters( 'logout_url', $logout_url, $redirect );
 675  }
 676  
 677  /**
 678   * Retrieves the login URL.
 679   *
 680   * @since 2.7.0
 681   *
 682   * @param string $redirect     Path to redirect to on log in.
 683   * @param bool   $force_reauth Whether to force reauthorization, even if a cookie is present.
 684   *                             Default false.
 685   * @return string The login URL. Not HTML-encoded.
 686   */
 687  function wp_login_url( $redirect = '', $force_reauth = false ) {
 688      $login_url = site_url( 'wp-login.php', 'login' );
 689  
 690      if ( ! empty( $redirect ) ) {
 691          $login_url = add_query_arg( 'redirect_to', urlencode( $redirect ), $login_url );
 692      }
 693  
 694      if ( $force_reauth ) {
 695          $login_url = add_query_arg( 'reauth', '1', $login_url );
 696      }
 697  
 698      /**
 699       * Filters the login URL.
 700       *
 701       * @since 2.8.0
 702       * @since 4.2.0 The `$force_reauth` parameter was added.
 703       *
 704       * @param string $login_url    The login URL. Not HTML-encoded.
 705       * @param string $redirect     The path to redirect to on login, if supplied.
 706       * @param bool   $force_reauth Whether to force reauthorization, even if a cookie is present.
 707       */
 708      return apply_filters( 'login_url', $login_url, $redirect, $force_reauth );
 709  }
 710  
 711  /**
 712   * Returns the URL that allows the user to register on the site.
 713   *
 714   * @since 3.6.0
 715   *
 716   * @return string User registration URL.
 717   */
 718  function wp_registration_url() {
 719      /**
 720       * Filters the user registration URL.
 721       *
 722       * @since 3.6.0
 723       *
 724       * @param string $register The user registration URL.
 725       */
 726      return apply_filters( 'register_url', site_url( 'wp-login.php?action=register', 'login' ) );
 727  }
 728  
 729  /**
 730   * Provides a simple login form for use anywhere within WordPress.
 731   *
 732   * The login form HTML is echoed by default. Pass a false value for `$echo` to return it instead.
 733   *
 734   * @since 3.0.0
 735   * @since 6.6.0 Added `required_username` and `required_password` arguments.
 736   *
 737   * @param array $args {
 738   *     Optional. Array of options to control the form output. Default empty array.
 739   *
 740   *     @type bool   $echo              Whether to display the login form or return the form HTML code.
 741   *                                     Default true (echo).
 742   *     @type string $redirect          URL to redirect to. Must be absolute, as in "https://example.com/mypage/".
 743   *                                     Default is to redirect back to the request URI.
 744   *     @type string $form_id           ID attribute value for the form. Default 'loginform'.
 745   *     @type string $label_username    Label for the username or email address field. Default 'Username or Email Address'.
 746   *     @type string $label_password    Label for the password field. Default 'Password'.
 747   *     @type string $label_remember    Label for the remember field. Default 'Remember Me'.
 748   *     @type string $label_log_in      Label for the submit button. Default 'Log In'.
 749   *     @type string $id_username       ID attribute value for the username field. Default 'user_login'.
 750   *     @type string $id_password       ID attribute value for the password field. Default 'user_pass'.
 751   *     @type string $id_remember       ID attribute value for the remember field. Default 'rememberme'.
 752   *     @type string $id_submit         ID attribute value for the submit button. Default 'wp-submit'.
 753   *     @type bool   $remember          Whether to display the "rememberme" checkbox in the form.
 754   *     @type string $value_username    Default value for the username field. Default empty.
 755   *     @type bool   $value_remember    Whether the "Remember Me" checkbox should be checked by default.
 756   *                                     Default false (unchecked).
 757   *     @type bool   $required_username Whether the username field has the 'required' attribute.
 758   *                                     Default false.
 759   *     @type bool   $required_password Whether the password field has the 'required' attribute.
 760   *                                     Default false.
 761   *
 762   * }
 763   * @return string|void Login form HTML if 'echo' is false, nothing otherwise.
 764   * @phpstan-return ( $args is array{ echo: false|0|''|'0', ... } ? string : void )
 765   */
 766  function wp_login_form( $args = array() ) {
 767      $defaults = array(
 768          'echo'              => true,
 769          // Default 'redirect' value takes the user back to the request URI.
 770          'redirect'          => ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'],
 771          'form_id'           => 'loginform',
 772          'label_username'    => __( 'Username or Email Address' ),
 773          'label_password'    => __( 'Password' ),
 774          'label_remember'    => __( 'Remember Me' ),
 775          'label_log_in'      => __( 'Log In' ),
 776          'id_username'       => 'user_login',
 777          'id_password'       => 'user_pass',
 778          'id_remember'       => 'rememberme',
 779          'id_submit'         => 'wp-submit',
 780          'remember'          => true,
 781          'value_username'    => '',
 782          // Set 'value_remember' to true to default the "Remember me" checkbox to checked.
 783          'value_remember'    => false,
 784          // Set 'required_username' to true to add the required attribute to username field.
 785          'required_username' => false,
 786          // Set 'required_password' to true to add the required attribute to password field.
 787          'required_password' => false,
 788      );
 789  
 790      /**
 791       * Filters the default login form output arguments.
 792       *
 793       * @since 3.0.0
 794       *
 795       * @see wp_login_form()
 796       *
 797       * @param array $defaults An array of default login form arguments.
 798       */
 799      $args = wp_parse_args( $args, apply_filters( 'login_form_defaults', $defaults ) );
 800  
 801      /**
 802       * Filters content to display at the top of the login form.
 803       *
 804       * The filter evaluates just following the opening form tag element.
 805       *
 806       * @since 3.0.0
 807       *
 808       * @param string $content Content to display. Default empty.
 809       * @param array  $args    Array of login form arguments.
 810       */
 811      $login_form_top = apply_filters( 'login_form_top', '', $args );
 812  
 813      /**
 814       * Filters content to display in the middle of the login form.
 815       *
 816       * The filter evaluates just following the location where the 'login-password'
 817       * field is displayed.
 818       *
 819       * @since 3.0.0
 820       *
 821       * @param string $content Content to display. Default empty.
 822       * @param array  $args    Array of login form arguments.
 823       */
 824      $login_form_middle = apply_filters( 'login_form_middle', '', $args );
 825  
 826      /**
 827       * Filters content to display at the bottom of the login form.
 828       *
 829       * The filter evaluates just preceding the closing form tag element.
 830       *
 831       * @since 3.0.0
 832       *
 833       * @param string $content Content to display. Default empty.
 834       * @param array  $args    Array of login form arguments.
 835       */
 836      $login_form_bottom = apply_filters( 'login_form_bottom', '', $args );
 837  
 838      $direction_style = is_rtl() ? ' style="direction: ltr;"' : '';
 839  
 840      $form =
 841          sprintf(
 842              '<form name="%1$s" id="%1$s" action="%2$s" method="post">',
 843              esc_attr( $args['form_id'] ),
 844              esc_url( site_url( 'wp-login.php', 'login_post' ) )
 845          ) .
 846          $login_form_top .
 847          sprintf(
 848              '<p class="login-username">
 849                  <label for="%1$s">%2$s</label>
 850                  <input type="text" name="log" id="%1$s" autocomplete="username" class="input" value="%3$s" size="20"%4$s%5$s />
 851              </p>',
 852              esc_attr( $args['id_username'] ),
 853              esc_html( $args['label_username'] ),
 854              esc_attr( $args['value_username'] ),
 855              ( $args['required_username'] ? ' required="required"' : '' ),
 856              $direction_style
 857          ) .
 858          sprintf(
 859              '<p class="login-password">
 860                  <label for="%1$s">%2$s</label>
 861                  <input type="password" name="pwd" id="%1$s" autocomplete="current-password" spellcheck="false" class="input" value="" size="20"%3$s%4$s />
 862              </p>',
 863              esc_attr( $args['id_password'] ),
 864              esc_html( $args['label_password'] ),
 865              ( $args['required_password'] ? ' required="required"' : '' ),
 866              $direction_style
 867          ) .
 868          $login_form_middle .
 869          ( $args['remember'] ?
 870              sprintf(
 871                  '<p class="login-remember"><label><input name="rememberme" type="checkbox" id="%1$s" value="forever"%2$s /> %3$s</label></p>',
 872                  esc_attr( $args['id_remember'] ),
 873                  ( $args['value_remember'] ? ' checked="checked"' : '' ),
 874                  esc_html( $args['label_remember'] )
 875              ) : ''
 876          ) .
 877          sprintf(
 878              '<p class="login-submit">
 879                  <input type="submit" name="wp-submit" id="%1$s" class="button button-primary" value="%2$s" />
 880                  <input type="hidden" name="redirect_to" value="%3$s" />
 881              </p>',
 882              esc_attr( $args['id_submit'] ),
 883              esc_attr( $args['label_log_in'] ),
 884              esc_url( $args['redirect'] )
 885          ) .
 886          $login_form_bottom .
 887          '</form>';
 888  
 889      if ( $args['echo'] ) {
 890          echo $form;
 891      } else {
 892          return $form;
 893      }
 894  }
 895  
 896  /**
 897   * Returns the URL that allows the user to reset the lost password.
 898   *
 899   * @since 2.8.0
 900   *
 901   * @param string $redirect Path to redirect to on login.
 902   * @return string Lost password URL.
 903   */
 904  function wp_lostpassword_url( $redirect = '' ) {
 905      $args = array(
 906          'action' => 'lostpassword',
 907      );
 908  
 909      if ( ! empty( $redirect ) ) {
 910          $args['redirect_to'] = urlencode( $redirect );
 911      }
 912  
 913      if ( is_multisite() ) {
 914          $blog_details  = get_site();
 915          $wp_login_path = $blog_details->path . 'wp-login.php';
 916      } else {
 917          $wp_login_path = 'wp-login.php';
 918      }
 919  
 920      $lostpassword_url = add_query_arg( $args, network_site_url( $wp_login_path, 'login' ) );
 921  
 922      /**
 923       * Filters the Lost Password URL.
 924       *
 925       * @since 2.8.0
 926       *
 927       * @param string $lostpassword_url The lost password page URL.
 928       * @param string $redirect         The path to redirect to on login.
 929       */
 930      return apply_filters( 'lostpassword_url', $lostpassword_url, $redirect );
 931  }
 932  
 933  /**
 934   * Displays the Registration or Admin link.
 935   *
 936   * Display a link which allows the user to navigate to the registration page if
 937   * not logged in and registration is enabled or to the dashboard if logged in.
 938   *
 939   * @since 1.5.0
 940   *
 941   * @param string $before  Text to output before the link. Default `<li>`.
 942   * @param string $after   Text to output after the link. Default `</li>`.
 943   * @param bool   $display Default to echo and not return the link.
 944   * @return string|void The registration or admin link when `$display` is false, or an empty
 945   *                     string when registration is disabled or the logged-in user cannot
 946   *                     access the dashboard. Nothing otherwise.
 947   * @phpstan-return ( $display is true ? void : string )
 948   */
 949  function wp_register( $before = '<li>', $after = '</li>', $display = true ) {
 950      if ( ! is_user_logged_in() ) {
 951          if ( get_option( 'users_can_register' ) ) {
 952              $link = $before . '<a href="' . esc_url( wp_registration_url() ) . '">' . __( 'Register' ) . '</a>' . $after;
 953          } else {
 954              $link = '';
 955          }
 956      } elseif ( current_user_can( 'read' ) ) {
 957          $link = $before . '<a href="' . admin_url() . '">' . __( 'Site Admin' ) . '</a>' . $after;
 958      } else {
 959          $link = '';
 960      }
 961  
 962      /**
 963       * Filters the HTML link to the Registration or Admin page.
 964       *
 965       * Users are sent to the admin page if logged-in, or the registration page
 966       * if enabled and logged-out.
 967       *
 968       * @since 1.5.0
 969       *
 970       * @param string $link The HTML code for the link to the Registration or Admin page.
 971       */
 972      $link = apply_filters( 'register', $link );
 973  
 974      if ( $display ) {
 975          echo $link;
 976      } else {
 977          return $link;
 978      }
 979  }
 980  
 981  /**
 982   * Theme container function for the 'wp_meta' action.
 983   *
 984   * The {@see 'wp_meta'} action can have several purposes, depending on how you use it,
 985   * but one purpose might have been to allow for theme switching.
 986   *
 987   * @since 1.5.0
 988   *
 989   * @link https://core.trac.wordpress.org/ticket/1458 Explanation of 'wp_meta' action.
 990   */
 991  function wp_meta() {
 992      /**
 993       * Fires before displaying echoed content in the sidebar.
 994       *
 995       * @since 1.5.0
 996       */
 997      do_action( 'wp_meta' );
 998  }
 999  
1000  /**
1001   * Displays information about the current site.
1002   *
1003   * @since 0.71
1004   *
1005   * @see get_bloginfo() For possible `$show` values
1006   *
1007   * @param string $show Optional. Site information to display. Default empty.
1008   */
1009  function bloginfo( $show = '' ) {
1010      echo get_bloginfo( $show, 'display' );
1011  }
1012  
1013  /**
1014   * Retrieves information about the current site.
1015   *
1016   * Possible values for `$show` include:
1017   *
1018   * - 'name' - Site title (set in Settings > General)
1019   * - 'description' - Site tagline (set in Settings > General)
1020   * - 'wpurl' - The WordPress address (URL) (set in Settings > General)
1021   * - 'url' - The Site address (URL) (set in Settings > General)
1022   * - 'admin_email' - Admin email (set in Settings > General)
1023   * - 'charset' - The "Encoding for pages and feeds"  (set in Settings > Reading)
1024   * - 'version' - The current WordPress version
1025   * - 'html_type' - The Content-Type (default: "text/html"). Themes and plugins
1026   *   can override the default value using the {@see 'pre_option_html_type'} filter
1027   * - 'text_direction' - The text direction determined by the site's language. is_rtl()
1028   *   should be used instead
1029   * - 'language' - Language code for the current site
1030   * - 'stylesheet_url' - URL to the stylesheet for the active theme. An active child theme
1031   *   will take precedence over this value
1032   * - 'stylesheet_directory' - Directory path for the active theme.  An active child theme
1033   *   will take precedence over this value
1034   * - 'template_url' / 'template_directory' - URL of the active theme's directory. An active
1035   *   child theme will NOT take precedence over this value
1036   * - 'pingback_url' - The pingback XML-RPC file URL (xmlrpc.php)
1037   * - 'atom_url' - The Atom feed URL (/feed/atom)
1038   * - 'rdf_url' - The RDF/RSS 1.0 feed URL (/feed/rdf)
1039   * - 'rss_url' - The RSS 0.92 feed URL (/feed/rss)
1040   * - 'rss2_url' - The RSS 2.0 feed URL (/feed)
1041   * - 'comments_atom_url' - The comments Atom feed URL (/comments/feed)
1042   * - 'comments_rss2_url' - The comments RSS 2.0 feed URL (/comments/feed)
1043   *
1044   * Some `$show` values are deprecated and will be removed in future versions.
1045   * These options will trigger the _deprecated_argument() function.
1046   *
1047   * Deprecated arguments include:
1048   *
1049   * - 'siteurl' - Use 'url' instead
1050   * - 'home' - Use 'url' instead
1051   *
1052   * @since 0.71
1053   *
1054   * @global string $wp_version The WordPress version string.
1055   *
1056   * @param string $show   Optional. Site info to retrieve. Default empty (site name).
1057   * @param string $filter Optional. How to filter what is retrieved. Default 'raw'.
1058   * @return string Mostly string values, might be empty.
1059   */
1060  function get_bloginfo( $show = '', $filter = 'raw' ) {
1061      switch ( $show ) {
1062          case 'home':    // Deprecated.
1063          case 'siteurl': // Deprecated.
1064              _deprecated_argument(
1065                  __FUNCTION__,
1066                  '2.2.0',
1067                  sprintf(
1068                      /* translators: 1: 'siteurl'/'home' argument, 2: bloginfo() function name, 3: 'url' argument. */
1069                      __( 'The %1$s option is deprecated for the family of %2$s functions. Use the %3$s option instead.' ),
1070                      '<code>' . $show . '</code>',
1071                      '<code>bloginfo()</code>',
1072                      '<code>url</code>'
1073                  )
1074              );
1075              // Intentional fall-through to be handled by the 'url' case.
1076          case 'url':
1077              $output = home_url();
1078              break;
1079          case 'wpurl':
1080              $output = site_url();
1081              break;
1082          case 'description':
1083              $output = get_option( 'blogdescription' );
1084              break;
1085          case 'rdf_url':
1086              $output = get_feed_link( 'rdf' );
1087              break;
1088          case 'rss_url':
1089              $output = get_feed_link( 'rss' );
1090              break;
1091          case 'rss2_url':
1092              $output = get_feed_link( 'rss2' );
1093              break;
1094          case 'atom_url':
1095              $output = get_feed_link( 'atom' );
1096              break;
1097          case 'comments_atom_url':
1098              $output = get_feed_link( 'comments_atom' );
1099              break;
1100          case 'comments_rss2_url':
1101              $output = get_feed_link( 'comments_rss2' );
1102              break;
1103          case 'pingback_url':
1104              $output = site_url( 'xmlrpc.php' );
1105              break;
1106          case 'stylesheet_url':
1107              $output = get_stylesheet_uri();
1108              break;
1109          case 'stylesheet_directory':
1110              $output = get_stylesheet_directory_uri();
1111              break;
1112          case 'template_directory':
1113          case 'template_url':
1114              $output = get_template_directory_uri();
1115              break;
1116          case 'admin_email':
1117              $output = get_option( 'admin_email' );
1118              break;
1119          case 'charset':
1120              $output = get_option( 'blog_charset' );
1121              if ( '' === $output ) {
1122                  $output = 'UTF-8';
1123              }
1124              break;
1125          case 'html_type':
1126              $output = get_option( 'html_type' );
1127              break;
1128          case 'version':
1129              global $wp_version;
1130              $output = $wp_version;
1131              break;
1132          case 'language':
1133              /*
1134               * translators: Translate this to the correct language tag for your locale,
1135               * see https://www.w3.org/International/articles/language-tags/ for reference.
1136               * Do not translate into your own language.
1137               */
1138              $output = __( 'html_lang_attribute' );
1139              if ( 'html_lang_attribute' === $output || preg_match( '/[^a-zA-Z0-9-]/', $output ) ) {
1140                  $output = determine_locale();
1141                  $output = str_replace( '_', '-', $output );
1142              }
1143              break;
1144          case 'text_direction':
1145              _deprecated_argument(
1146                  __FUNCTION__,
1147                  '2.2.0',
1148                  sprintf(
1149                      /* translators: 1: 'text_direction' argument, 2: bloginfo() function name, 3: is_rtl() function name. */
1150                      __( 'The %1$s option is deprecated for the family of %2$s functions. Use the %3$s function instead.' ),
1151                      '<code>' . $show . '</code>',
1152                      '<code>bloginfo()</code>',
1153                      '<code>is_rtl()</code>'
1154                  )
1155              );
1156              if ( function_exists( 'is_rtl' ) ) {
1157                  $output = is_rtl() ? 'rtl' : 'ltr';
1158              } else {
1159                  $output = 'ltr';
1160              }
1161              break;
1162          case 'name':
1163          default:
1164              $output = get_option( 'blogname' );
1165              break;
1166      }
1167  
1168      if ( 'display' === $filter ) {
1169          if (
1170              str_contains( $show, 'url' )
1171              || str_contains( $show, 'directory' )
1172              || str_contains( $show, 'home' )
1173          ) {
1174              /**
1175               * Filters the URL returned by get_bloginfo().
1176               *
1177               * @since 2.0.5
1178               *
1179               * @param string $output The URL returned by bloginfo().
1180               * @param string $show   Type of information requested.
1181               */
1182              $output = apply_filters( 'bloginfo_url', $output, $show );
1183          } else {
1184              /**
1185               * Filters the site information returned by get_bloginfo().
1186               *
1187               * @since 0.71
1188               *
1189               * @param mixed  $output The requested non-URL site information.
1190               * @param string $show   Type of information requested.
1191               */
1192              $output = apply_filters( 'bloginfo', $output, $show );
1193          }
1194      }
1195  
1196      return $output;
1197  }
1198  
1199  /**
1200   * Returns the Site Icon URL.
1201   *
1202   * @since 4.3.0
1203   *
1204   * @param int    $size    Optional. Size of the site icon. Default 512 (pixels).
1205   * @param string $url     Optional. Fallback url if no site icon is found. Default empty.
1206   * @param int    $blog_id Optional. ID of the blog to get the site icon for. Default current blog.
1207   * @return string Site Icon URL.
1208   */
1209  function get_site_icon_url( $size = 512, $url = '', $blog_id = 0 ) {
1210      $switched_blog = false;
1211  
1212      if ( is_multisite() && ! empty( $blog_id ) && get_current_blog_id() !== (int) $blog_id ) {
1213          switch_to_blog( $blog_id );
1214          $switched_blog = true;
1215      }
1216  
1217      $site_icon_id = (int) get_option( 'site_icon' );
1218  
1219      if ( $site_icon_id ) {
1220          if ( $size >= 512 ) {
1221              $size_data = 'full';
1222          } else {
1223              $size_data = array( $size, $size );
1224          }
1225          $attachment_url = wp_get_attachment_image_url( $site_icon_id, $size_data );
1226          if ( $attachment_url ) {
1227              $url = is_ssl() ? set_url_scheme( $attachment_url, 'https' ) : $attachment_url;
1228          }
1229      }
1230  
1231      if ( $switched_blog ) {
1232          restore_current_blog();
1233      }
1234  
1235      /**
1236       * Filters the site icon URL.
1237       *
1238       * @since 4.4.0
1239       *
1240       * @param string $url     Site icon URL.
1241       * @param int    $size    Size of the site icon.
1242       * @param int    $blog_id ID of the blog to get the site icon for.
1243       */
1244      return apply_filters( 'get_site_icon_url', $url, $size, $blog_id );
1245  }
1246  
1247  /**
1248   * Displays the Site Icon URL.
1249   *
1250   * @since 4.3.0
1251   *
1252   * @param int    $size    Optional. Size of the site icon. Default 512 (pixels).
1253   * @param string $url     Optional. Fallback url if no site icon is found. Default empty.
1254   * @param int    $blog_id Optional. ID of the blog to get the site icon for. Default current blog.
1255   */
1256  function site_icon_url( $size = 512, $url = '', $blog_id = 0 ) {
1257      echo esc_url( get_site_icon_url( $size, $url, $blog_id ) );
1258  }
1259  
1260  /**
1261   * Determines whether the site has a Site Icon.
1262   *
1263   * @since 4.3.0
1264   *
1265   * @param int $blog_id Optional. ID of the blog in question. Default current blog.
1266   * @return bool Whether the site has a site icon or not.
1267   */
1268  function has_site_icon( $blog_id = 0 ) {
1269      return (bool) get_site_icon_url( 512, '', $blog_id );
1270  }
1271  
1272  /**
1273   * Determines whether the site has a custom logo.
1274   *
1275   * @since 4.5.0
1276   *
1277   * @param int $blog_id Optional. ID of the blog in question. Default is the ID of the current blog.
1278   * @return bool Whether the site has a custom logo or not.
1279   */
1280  function has_custom_logo( $blog_id = 0 ) {
1281      $switched_blog = false;
1282  
1283      if ( is_multisite() && ! empty( $blog_id ) && get_current_blog_id() !== (int) $blog_id ) {
1284          switch_to_blog( $blog_id );
1285          $switched_blog = true;
1286      }
1287  
1288      $custom_logo_id = get_theme_mod( 'custom_logo' );
1289      $is_image       = ( $custom_logo_id ) ? wp_attachment_is_image( $custom_logo_id ) : false;
1290  
1291      if ( $switched_blog ) {
1292          restore_current_blog();
1293      }
1294  
1295      return $is_image;
1296  }
1297  
1298  /**
1299   * Returns a custom logo, linked to home unless the theme supports removing the link on the home page.
1300   *
1301   * @since 4.5.0
1302   * @since 5.5.0 Added option to remove the link on the home page with `unlink-homepage-logo` theme support
1303   *              for the `custom-logo` theme feature.
1304   * @since 5.5.1 Disabled lazy-loading by default.
1305   *
1306   * @param int $blog_id Optional. ID of the blog in question. Default is the ID of the current blog.
1307   * @return string Custom logo markup.
1308   */
1309  function get_custom_logo( $blog_id = 0 ) {
1310      $html          = '';
1311      $switched_blog = false;
1312  
1313      if ( is_multisite() && ! empty( $blog_id ) && get_current_blog_id() !== (int) $blog_id ) {
1314          switch_to_blog( $blog_id );
1315          $switched_blog = true;
1316      }
1317  
1318      // We have a logo. Logo is go.
1319      if ( has_custom_logo() ) {
1320          $custom_logo_id   = get_theme_mod( 'custom_logo' );
1321          $custom_logo_attr = array(
1322              'class'   => 'custom-logo',
1323              'loading' => false,
1324          );
1325  
1326          $unlink_homepage_logo = (bool) get_theme_support( 'custom-logo', 'unlink-homepage-logo' );
1327  
1328          if ( $unlink_homepage_logo && is_front_page() && ! is_paged() ) {
1329              /*
1330               * If on the home page, set the logo alt attribute to an empty string,
1331               * as the image is decorative and doesn't need its purpose to be described.
1332               */
1333              $custom_logo_attr['alt'] = '';
1334          } else {
1335              /*
1336               * If the logo alt attribute is empty, get the site title and explicitly pass it
1337               * to the attributes used by wp_get_attachment_image().
1338               */
1339              $image_alt = get_post_meta( $custom_logo_id, '_wp_attachment_image_alt', true );
1340              if ( empty( $image_alt ) ) {
1341                  $custom_logo_attr['alt'] = get_bloginfo( 'name', 'display' );
1342              }
1343          }
1344  
1345          /**
1346           * Filters the list of custom logo image attributes.
1347           *
1348           * @since 5.5.0
1349           *
1350           * @param array $custom_logo_attr Custom logo image attributes.
1351           * @param int   $custom_logo_id   Custom logo attachment ID.
1352           * @param int   $blog_id          ID of the blog to get the custom logo for.
1353           */
1354          $custom_logo_attr = apply_filters( 'get_custom_logo_image_attributes', $custom_logo_attr, $custom_logo_id, $blog_id );
1355  
1356          /*
1357           * If the alt attribute is not empty, there's no need to explicitly pass it
1358           * because wp_get_attachment_image() already adds the alt attribute.
1359           */
1360          $image = wp_get_attachment_image( $custom_logo_id, 'full', false, $custom_logo_attr );
1361  
1362          // Check that we have a proper HTML img element.
1363          if ( $image ) {
1364  
1365              if ( $unlink_homepage_logo && is_front_page() && ! is_paged() ) {
1366                  // If on the home page, don't link the logo to home.
1367                  $html = sprintf(
1368                      '<span class="custom-logo-link">%1$s</span>',
1369                      $image
1370                  );
1371              } else {
1372                  $aria_current = ! is_paged() && ( is_front_page() || is_home() && ( (int) get_option( 'page_for_posts' ) !== get_queried_object_id() ) ) ? ' aria-current="page"' : '';
1373  
1374                  $html = sprintf(
1375                      '<a href="%1$s" class="custom-logo-link" rel="home"%2$s>%3$s</a>',
1376                      esc_url( home_url( '/' ) ),
1377                      $aria_current,
1378                      $image
1379                  );
1380              }
1381          }
1382      } elseif ( is_customize_preview() ) {
1383          // If no logo is set but we're in the Customizer, leave a placeholder (needed for the live preview).
1384          $html = sprintf(
1385              '<a href="%1$s" class="custom-logo-link" style="display:none;"><img class="custom-logo" alt="" /></a>',
1386              esc_url( home_url( '/' ) )
1387          );
1388      }
1389  
1390      if ( $switched_blog ) {
1391          restore_current_blog();
1392      }
1393  
1394      /**
1395       * Filters the custom logo output.
1396       *
1397       * @since 4.5.0
1398       * @since 4.6.0 Added the `$blog_id` parameter.
1399       *
1400       * @param string $html    Custom logo HTML output.
1401       * @param int    $blog_id ID of the blog to get the custom logo for.
1402       */
1403      return apply_filters( 'get_custom_logo', $html, $blog_id );
1404  }
1405  
1406  /**
1407   * Displays a custom logo, linked to home unless the theme supports removing the link on the home page.
1408   *
1409   * @since 4.5.0
1410   *
1411   * @param int $blog_id Optional. ID of the blog in question. Default is the ID of the current blog.
1412   */
1413  function the_custom_logo( $blog_id = 0 ) {
1414      echo get_custom_logo( $blog_id );
1415  }
1416  
1417  /**
1418   * Returns document title for the current page.
1419   *
1420   * @since 4.4.0
1421   *
1422   * @global int $page  Page number of a single post.
1423   * @global int $paged Page number of a list of posts.
1424   *
1425   * @return string Tag with the document title.
1426   */
1427  function wp_get_document_title() {
1428  
1429      /**
1430       * Filters the document title before it is generated.
1431       *
1432       * Passing a non-empty value will short-circuit wp_get_document_title(),
1433       * returning that value instead.
1434       *
1435       * @since 4.4.0
1436       *
1437       * @param string $title The document title. Default empty string.
1438       */
1439      $title = apply_filters( 'pre_get_document_title', '' );
1440      if ( ! empty( $title ) ) {
1441          return $title;
1442      }
1443  
1444      global $page, $paged;
1445  
1446      $title = array(
1447          'title' => '',
1448      );
1449  
1450      // If it's a 404 page, use a "Page not found" title.
1451      if ( is_404() ) {
1452          $title['title'] = __( 'Page not found' );
1453  
1454          // If it's a search, use a dynamic search results title.
1455      } elseif ( is_search() ) {
1456          /* translators: %s: Search query. */
1457          $title['title'] = sprintf( __( 'Search Results for &#8220;%s&#8221;' ), get_search_query() );
1458  
1459          // If on the front page, use the site title.
1460      } elseif ( is_front_page() ) {
1461          $title['title'] = get_bloginfo( 'name', 'display' );
1462  
1463          // If on a post type archive, use the post type archive title.
1464      } elseif ( is_post_type_archive() ) {
1465          $title['title'] = post_type_archive_title( '', false );
1466  
1467          // If on a taxonomy archive, use the term title.
1468      } elseif ( is_tax() ) {
1469          $title['title'] = single_term_title( '', false );
1470  
1471          /*
1472          * If we're on the blog page that is not the homepage
1473          * or a single post of any post type, use the post title.
1474          */
1475      } elseif ( is_home() || is_singular() ) {
1476          $title['title'] = single_post_title( '', false );
1477  
1478          // If on a category or tag archive, use the term title.
1479      } elseif ( is_category() || is_tag() ) {
1480          $title['title'] = single_term_title( '', false );
1481  
1482          // If on an author archive, use the author's display name.
1483      } elseif ( is_author() && get_queried_object() ) {
1484          $author         = get_queried_object();
1485          $title['title'] = $author->display_name;
1486  
1487          // If it's a date archive, use the date as the title.
1488      } elseif ( is_year() ) {
1489          $title['title'] = get_the_date( _x( 'Y', 'yearly archives date format' ) );
1490  
1491      } elseif ( is_month() ) {
1492          $title['title'] = get_the_date( _x( 'F Y', 'monthly archives date format' ) );
1493  
1494      } elseif ( is_day() ) {
1495          $title['title'] = get_the_date();
1496      }
1497  
1498      // Add a page number if necessary.
1499      if ( ( $paged >= 2 || $page >= 2 ) && ! is_404() ) {
1500          /* translators: %s: Page number. */
1501          $title['page'] = sprintf( __( 'Page %s' ), max( $paged, $page ) );
1502      }
1503  
1504      // Append the description or site title to give context.
1505      if ( is_front_page() ) {
1506          $title['tagline'] = get_bloginfo( 'description', 'display' );
1507      } else {
1508          $title['site'] = get_bloginfo( 'name', 'display' );
1509      }
1510  
1511      /**
1512       * Filters the separator for the document title.
1513       *
1514       * @since 4.4.0
1515       *
1516       * @param string $sep Document title separator. Default '-'.
1517       */
1518      $sep = apply_filters( 'document_title_separator', '-' );
1519  
1520      /**
1521       * Filters the parts of the document title.
1522       *
1523       * @since 4.4.0
1524       *
1525       * @param array $title {
1526       *     The document title parts.
1527       *
1528       *     @type string $title   Title of the viewed page.
1529       *     @type string $page    Optional. Page number if paginated.
1530       *     @type string $tagline Optional. Site description when on home page.
1531       *     @type string $site    Optional. Site title when not on home page.
1532       * }
1533       */
1534      $title = apply_filters( 'document_title_parts', $title );
1535  
1536      $title = implode( " $sep ", array_filter( $title ) );
1537  
1538      /**
1539       * Filters the document title.
1540       *
1541       * @since 5.8.0
1542       *
1543       * @param string $title Document title.
1544       */
1545      $title = apply_filters( 'document_title', $title );
1546  
1547      return $title;
1548  }
1549  
1550  /**
1551   * Displays title tag with content.
1552   *
1553   * @since 4.1.0
1554   * @since 4.4.0 Improved title output replaced `wp_title()`.
1555   * @access private
1556   */
1557  function _wp_render_title_tag() {
1558      if ( ! current_theme_supports( 'title-tag' ) ) {
1559          return;
1560      }
1561  
1562      echo '<title>' . wp_get_document_title() . '</title>' . "\n";
1563  }
1564  
1565  /**
1566   * Displays or retrieves page title for all areas of blog.
1567   *
1568   * By default, the page title will display the separator before the page title,
1569   * so that the blog title will be before the page title. This is not good for
1570   * title display, since the blog title shows up on most tabs and not what is
1571   * important, which is the page that the user is looking at.
1572   *
1573   * There are also SEO benefits to having the blog title after or to the 'right'
1574   * of the page title. However, it is mostly common sense to have the blog title
1575   * to the right with most browsers supporting tabs. You can achieve this by
1576   * using the seplocation parameter and setting the value to 'right'. This change
1577   * was introduced around 2.5.0, in case backward compatibility of themes is
1578   * important.
1579   *
1580   * @since 1.0.0
1581   *
1582   * @global WP_Locale $wp_locale WordPress date and time locale object.
1583   *
1584   * @param string $sep         Optional. How to separate the various items within the page title.
1585   *                            Default '&raquo;'.
1586   * @param bool   $display     Optional. Whether to display or retrieve title. Default true.
1587   * @param string $seplocation Optional. Location of the separator (either 'left' or 'right').
1588   * @return string|void String when `$display` is false, nothing otherwise.
1589   * @phpstan-return ( $display is true ? void : string )
1590   */
1591  function wp_title( $sep = '&raquo;', $display = true, $seplocation = '' ) {
1592      global $wp_locale;
1593  
1594      $m        = get_query_var( 'm' );
1595      $year     = get_query_var( 'year' );
1596      $monthnum = get_query_var( 'monthnum' );
1597      $day      = get_query_var( 'day' );
1598      $search   = get_query_var( 's' );
1599      $title    = '';
1600  
1601      $t_sep = '%WP_TITLE_SEP%'; // Temporary separator, for accurate flipping, if necessary.
1602  
1603      // If there is a post.
1604      if ( is_single() || ( is_home() && ! is_front_page() ) || ( is_page() && ! is_front_page() ) ) {
1605          $title = single_post_title( '', false );
1606      }
1607  
1608      // If there's a post type archive.
1609      if ( is_post_type_archive() ) {
1610          $post_type = get_query_var( 'post_type' );
1611          if ( is_array( $post_type ) ) {
1612              $post_type = reset( $post_type );
1613          }
1614          $post_type_object = get_post_type_object( $post_type );
1615          if ( ! $post_type_object->has_archive ) {
1616              $title = post_type_archive_title( '', false );
1617          }
1618      }
1619  
1620      // If there's a category or tag.
1621      if ( is_category() || is_tag() ) {
1622          $title = single_term_title( '', false );
1623      }
1624  
1625      // If there's a taxonomy.
1626      if ( is_tax() ) {
1627          $term = get_queried_object();
1628          if ( $term ) {
1629              $tax   = get_taxonomy( $term->taxonomy );
1630              $title = single_term_title( $tax->labels->name . $t_sep, false );
1631          }
1632      }
1633  
1634      // If there's an author.
1635      if ( is_author() && ! is_post_type_archive() ) {
1636          $author = get_queried_object();
1637          if ( $author ) {
1638              $title = $author->display_name;
1639          }
1640      }
1641  
1642      // Post type archives with has_archive should override terms.
1643      if ( is_post_type_archive() && $post_type_object->has_archive ) {
1644          $title = post_type_archive_title( '', false );
1645      }
1646  
1647      // If there's a month.
1648      if ( is_archive() && ! empty( $m ) ) {
1649          $my_year  = substr( $m, 0, 4 );
1650          $my_month = substr( $m, 4, 2 );
1651          $my_day   = (int) substr( $m, 6, 2 );
1652          $title    = $my_year .
1653              ( $my_month ? $t_sep . $wp_locale->get_month( $my_month ) : '' ) .
1654              ( $my_day ? $t_sep . $my_day : '' );
1655      }
1656  
1657      // If there's a year.
1658      if ( is_archive() && ! empty( $year ) ) {
1659          $title = $year;
1660          if ( ! empty( $monthnum ) ) {
1661              $title .= $t_sep . $wp_locale->get_month( $monthnum );
1662          }
1663          if ( ! empty( $day ) ) {
1664              $title .= $t_sep . zeroise( $day, 2 );
1665          }
1666      }
1667  
1668      // If it's a search.
1669      if ( is_search() ) {
1670          /* translators: 1: Separator, 2: Search query. */
1671          $title = sprintf( __( 'Search Results %1$s %2$s' ), $t_sep, strip_tags( $search ) );
1672      }
1673  
1674      // If it's a 404 page.
1675      if ( is_404() ) {
1676          $title = __( 'Page not found' );
1677      }
1678  
1679      if ( ! is_string( $title ) ) {
1680          $title = '';
1681      }
1682  
1683      $prefix      = '';
1684      $title_array = array();
1685      if ( '' !== $title ) {
1686          $prefix      = " $sep ";
1687          $title_array = explode( $t_sep, $title );
1688      }
1689  
1690      /**
1691       * Filters the parts of the page title.
1692       *
1693       * @since 4.0.0
1694       *
1695       * @param string[] $title_array Array of parts of the page title.
1696       */
1697      $title_array = apply_filters( 'wp_title_parts', $title_array );
1698  
1699      // Determines position of the separator and direction of the breadcrumb.
1700      if ( 'right' === $seplocation ) { // Separator on right, so reverse the order.
1701          $title_array = array_reverse( $title_array );
1702          $title       = implode( " $sep ", $title_array ) . $prefix;
1703      } else {
1704          $title = $prefix . implode( " $sep ", $title_array );
1705      }
1706  
1707      /**
1708       * Filters the text of the page title.
1709       *
1710       * @since 2.0.0
1711       *
1712       * @param string $title       Page title.
1713       * @param string $sep         Title separator.
1714       * @param string $seplocation Location of the separator (either 'left' or 'right').
1715       */
1716      $title = apply_filters( 'wp_title', $title, $sep, $seplocation );
1717  
1718      // Send it out.
1719      if ( ! $display ) {
1720          return $title;
1721      }
1722  
1723      echo $title;
1724  }
1725  
1726  /**
1727   * Displays or retrieves page title for post.
1728   *
1729   * This is optimized for single.php template file for displaying the post title.
1730   *
1731   * It does not support placing the separator after the title, but by leaving the
1732   * prefix parameter empty, you can set the title separator manually. The prefix
1733   * does not automatically place a space between the prefix, so if there should
1734   * be a space, the parameter value will need to have it at the end.
1735   *
1736   * @since 0.71
1737   *
1738   * @param string $prefix  Optional. What to display before the title.
1739   * @param bool   $display Optional. Whether to display or retrieve title. Default true.
1740   * @return string|null|void Title when retrieving, null on failure.
1741   *                          Nothing when displaying.
1742   * @phpstan-return ( $display is true ? void : string|null )
1743   */
1744  function single_post_title( $prefix = '', $display = true ) {
1745      $_post = get_queried_object();
1746  
1747      if ( ! isset( $_post->post_title ) ) {
1748          return null;
1749      }
1750  
1751      /**
1752       * Filters the page title for a single post.
1753       *
1754       * @since 0.71
1755       *
1756       * @param string  $_post_title The single post page title.
1757       * @param WP_Post $_post       The current post.
1758       */
1759      $title = apply_filters( 'single_post_title', $_post->post_title, $_post );
1760  
1761      if ( ! $display ) {
1762          return $prefix . $title;
1763      }
1764  
1765      echo $prefix . $title;
1766  }
1767  
1768  /**
1769   * Displays or retrieves title for a post type archive.
1770   *
1771   * This is optimized for archive.php and archive-{$post_type}.php template files
1772   * for displaying the title of the post type.
1773   *
1774   * @since 3.1.0
1775   *
1776   * @param string $prefix  Optional. What to display before the title.
1777   * @param bool   $display Optional. Whether to display or retrieve title. Default true.
1778   * @return string|null|void Title when retrieving, null on failure.
1779   *                          Nothing when displaying.
1780   * @phpstan-return ( $display is true ? void : string|null )
1781   */
1782  function post_type_archive_title( $prefix = '', $display = true ) {
1783      if ( ! is_post_type_archive() ) {
1784          return null;
1785      }
1786  
1787      $post_type = get_query_var( 'post_type' );
1788      if ( is_array( $post_type ) ) {
1789          $post_type = reset( $post_type );
1790      }
1791  
1792      $post_type_obj = get_post_type_object( $post_type );
1793  
1794      /**
1795       * Filters the post type archive title.
1796       *
1797       * @since 3.1.0
1798       *
1799       * @param string $post_type_name Post type 'name' label.
1800       * @param string $post_type      Post type.
1801       */
1802      $title = apply_filters( 'post_type_archive_title', $post_type_obj->labels->name, $post_type );
1803  
1804      if ( ! $display ) {
1805          return $prefix . $title;
1806      }
1807  
1808      echo $prefix . $title;
1809  }
1810  
1811  /**
1812   * Displays or retrieves page title for category archive.
1813   *
1814   * Useful for category template files for displaying the category page title.
1815   * The prefix does not automatically place a space between the prefix, so if
1816   * there should be a space, the parameter value will need to have it at the end.
1817   *
1818   * @since 0.71
1819   *
1820   * @param string $prefix  Optional. What to display before the title.
1821   * @param bool   $display Optional. Whether to display or retrieve title. Default true.
1822   * @return string|null|void Title when retrieving, null on failure.
1823   *                          Nothing when displaying.
1824   * @phpstan-return ( $display is true ? void : string|null )
1825   */
1826  function single_cat_title( $prefix = '', $display = true ) {
1827      if ( ! $display ) {
1828          return single_term_title( $prefix, false );
1829      }
1830  
1831      single_term_title( $prefix, true );
1832  }
1833  
1834  /**
1835   * Displays or retrieves page title for tag post archive.
1836   *
1837   * Useful for tag template files for displaying the tag page title. The prefix
1838   * does not automatically place a space between the prefix, so if there should
1839   * be a space, the parameter value will need to have it at the end.
1840   *
1841   * @since 2.3.0
1842   *
1843   * @param string $prefix  Optional. What to display before the title.
1844   * @param bool   $display Optional. Whether to display or retrieve title. Default true.
1845   * @return string|null|void Title when retrieving, null on failure.
1846   *                          Nothing when displaying.
1847   * @phpstan-return ( $display is true ? void : string|null )
1848   */
1849  function single_tag_title( $prefix = '', $display = true ) {
1850      if ( ! $display ) {
1851          return single_term_title( $prefix, false );
1852      }
1853  
1854      single_term_title( $prefix, true );
1855  }
1856  
1857  /**
1858   * Displays or retrieves page title for taxonomy term archive.
1859   *
1860   * Useful for taxonomy term template files for displaying the taxonomy term page title.
1861   * The prefix does not automatically place a space between the prefix, so if there should
1862   * be a space, the parameter value will need to have it at the end.
1863   *
1864   * @since 3.1.0
1865   *
1866   * @param string $prefix  Optional. What to display before the title.
1867   * @param bool   $display Optional. Whether to display or retrieve title. Default true.
1868   * @return string|null|void Title when retrieving, null on failure.
1869   *                          Nothing when displaying.
1870   * @phpstan-return ( $display is true ? void : string|null )
1871   */
1872  function single_term_title( $prefix = '', $display = true ) {
1873      $term = get_queried_object();
1874  
1875      if ( ! $term ) {
1876          return null;
1877      }
1878  
1879      if ( is_category() ) {
1880          /**
1881           * Filters the category archive page title.
1882           *
1883           * @since 2.0.10
1884           *
1885           * @param string $term_name Category name for archive being displayed.
1886           */
1887          $term_name = apply_filters( 'single_cat_title', $term->name );
1888      } elseif ( is_tag() ) {
1889          /**
1890           * Filters the tag archive page title.
1891           *
1892           * @since 2.3.0
1893           *
1894           * @param string $term_name Tag name for archive being displayed.
1895           */
1896          $term_name = apply_filters( 'single_tag_title', $term->name );
1897      } elseif ( is_tax() ) {
1898          /**
1899           * Filters the custom taxonomy archive page title.
1900           *
1901           * @since 3.1.0
1902           *
1903           * @param string $term_name Term name for archive being displayed.
1904           */
1905          $term_name = apply_filters( 'single_term_title', $term->name );
1906      } else {
1907          return null;
1908      }
1909  
1910      if ( empty( $term_name ) ) {
1911          return null;
1912      }
1913  
1914      if ( ! $display ) {
1915          return $prefix . $term_name;
1916      }
1917  
1918      echo $prefix . $term_name;
1919  }
1920  
1921  /**
1922   * Displays or retrieves page title for post archive based on date.
1923   *
1924   * Useful for when the template only needs to display the month and year,
1925   * if either are available. The prefix does not automatically place a space
1926   * between the prefix, so if there should be a space, the parameter value
1927   * will need to have it at the end.
1928   *
1929   * @since 0.71
1930   *
1931   * @global WP_Locale $wp_locale WordPress date and time locale object.
1932   *
1933   * @param string $prefix  Optional. What to display before the title.
1934   * @param bool   $display Optional. Whether to display or retrieve title. Default true.
1935   * @return string|false|null False if there's no valid title for the month. Title when retrieving.
1936   *
1937   * @phpstan-return ( $display is true ? false|null : string|false )
1938   */
1939  function single_month_title( $prefix = '', $display = true ) {
1940      global $wp_locale;
1941  
1942      $m        = get_query_var( 'm' );
1943      $year     = get_query_var( 'year' );
1944      $monthnum = get_query_var( 'monthnum' );
1945  
1946      if ( ! empty( $monthnum ) && ! empty( $year ) ) {
1947          $my_year  = $year;
1948          $my_month = $wp_locale->get_month( $monthnum );
1949      } elseif ( ! empty( $m ) ) {
1950          $my_year  = substr( $m, 0, 4 );
1951          $my_month = $wp_locale->get_month( substr( $m, 4, 2 ) );
1952      }
1953  
1954      if ( empty( $my_month ) ) {
1955          return false;
1956      }
1957  
1958      $result = $prefix . $my_month . $prefix . $my_year;
1959  
1960      if ( ! $display ) {
1961          return $result;
1962      }
1963  
1964      echo $result;
1965  
1966      return null;
1967  }
1968  
1969  /**
1970   * Displays the archive title based on the queried object.
1971   *
1972   * @since 4.1.0
1973   *
1974   * @see get_the_archive_title()
1975   *
1976   * @param string $before Optional. Content to prepend to the title. Default empty.
1977   * @param string $after  Optional. Content to append to the title. Default empty.
1978   */
1979  function the_archive_title( $before = '', $after = '' ) {
1980      $title = get_the_archive_title();
1981  
1982      if ( ! empty( $title ) ) {
1983          echo $before . $title . $after;
1984      }
1985  }
1986  
1987  /**
1988   * Retrieves the archive title based on the queried object.
1989   *
1990   * @since 4.1.0
1991   * @since 5.5.0 The title part is wrapped in a `<span>` element.
1992   *
1993   * @return string Archive title.
1994   */
1995  function get_the_archive_title() {
1996      $title  = __( 'Archives' );
1997      $prefix = '';
1998  
1999      if ( is_category() ) {
2000          $title  = single_cat_title( '', false );
2001          $prefix = _x( 'Category:', 'category archive title prefix' );
2002      } elseif ( is_tag() ) {
2003          $title  = single_tag_title( '', false );
2004          $prefix = _x( 'Tag:', 'tag archive title prefix' );
2005      } elseif ( is_author() ) {
2006          $title  = get_the_author();
2007          $prefix = _x( 'Author:', 'author archive title prefix' );
2008      } elseif ( is_year() ) {
2009          /* translators: See https://www.php.net/manual/datetime.format.php */
2010          $title  = get_the_date( _x( 'Y', 'yearly archives date format' ) );
2011          $prefix = _x( 'Year:', 'date archive title prefix' );
2012      } elseif ( is_month() ) {
2013          /* translators: See https://www.php.net/manual/datetime.format.php */
2014          $title  = get_the_date( _x( 'F Y', 'monthly archives date format' ) );
2015          $prefix = _x( 'Month:', 'date archive title prefix' );
2016      } elseif ( is_day() ) {
2017          /* translators: See https://www.php.net/manual/datetime.format.php */
2018          $title  = get_the_date( _x( 'F j, Y', 'daily archives date format' ) );
2019          $prefix = _x( 'Day:', 'date archive title prefix' );
2020      } elseif ( is_tax( 'post_format' ) ) {
2021          if ( is_tax( 'post_format', 'post-format-aside' ) ) {
2022              $title = _x( 'Asides', 'post format archive title' );
2023          } elseif ( is_tax( 'post_format', 'post-format-gallery' ) ) {
2024              $title = _x( 'Galleries', 'post format archive title' );
2025          } elseif ( is_tax( 'post_format', 'post-format-image' ) ) {
2026              $title = _x( 'Images', 'post format archive title' );
2027          } elseif ( is_tax( 'post_format', 'post-format-video' ) ) {
2028              $title = _x( 'Videos', 'post format archive title' );
2029          } elseif ( is_tax( 'post_format', 'post-format-quote' ) ) {
2030              $title = _x( 'Quotes', 'post format archive title' );
2031          } elseif ( is_tax( 'post_format', 'post-format-link' ) ) {
2032              $title = _x( 'Links', 'post format archive title' );
2033          } elseif ( is_tax( 'post_format', 'post-format-status' ) ) {
2034              $title = _x( 'Statuses', 'post format archive title' );
2035          } elseif ( is_tax( 'post_format', 'post-format-audio' ) ) {
2036              $title = _x( 'Audio', 'post format archive title' );
2037          } elseif ( is_tax( 'post_format', 'post-format-chat' ) ) {
2038              $title = _x( 'Chats', 'post format archive title' );
2039          }
2040      } elseif ( is_post_type_archive() ) {
2041          $title  = post_type_archive_title( '', false );
2042          $prefix = _x( 'Archives:', 'post type archive title prefix' );
2043      } elseif ( is_tax() ) {
2044          $queried_object = get_queried_object();
2045          if ( $queried_object ) {
2046              $tax    = get_taxonomy( $queried_object->taxonomy );
2047              $title  = single_term_title( '', false );
2048              $prefix = sprintf(
2049                  /* translators: %s: Taxonomy singular name. */
2050                  _x( '%s:', 'taxonomy term archive title prefix' ),
2051                  $tax->labels->singular_name
2052              );
2053          }
2054      }
2055  
2056      $original_title = $title;
2057  
2058      /**
2059       * Filters the archive title prefix.
2060       *
2061       * @since 5.5.0
2062       *
2063       * @param string $prefix Archive title prefix.
2064       */
2065      $prefix = apply_filters( 'get_the_archive_title_prefix', $prefix );
2066      if ( $prefix ) {
2067          $title = sprintf(
2068              /* translators: 1: Title prefix. 2: Title. */
2069              _x( '%1$s %2$s', 'archive title' ),
2070              $prefix,
2071              '<span>' . $title . '</span>'
2072          );
2073      }
2074  
2075      /**
2076       * Filters the archive title.
2077       *
2078       * @since 4.1.0
2079       * @since 5.5.0 Added the `$prefix` and `$original_title` parameters.
2080       *
2081       * @param string $title          Archive title to be displayed.
2082       * @param string $original_title Archive title without prefix.
2083       * @param string $prefix         Archive title prefix.
2084       */
2085      return apply_filters( 'get_the_archive_title', $title, $original_title, $prefix );
2086  }
2087  
2088  /**
2089   * Displays category, tag, term, or author description.
2090   *
2091   * @since 4.1.0
2092   *
2093   * @see get_the_archive_description()
2094   *
2095   * @param string $before Optional. Content to prepend to the description. Default empty.
2096   * @param string $after  Optional. Content to append to the description. Default empty.
2097   */
2098  function the_archive_description( $before = '', $after = '' ) {
2099      $description = get_the_archive_description();
2100      if ( $description ) {
2101          echo $before . $description . $after;
2102      }
2103  }
2104  
2105  /**
2106   * Retrieves the description for an author, post type, or term archive.
2107   *
2108   * @since 4.1.0
2109   * @since 4.7.0 Added support for author archives.
2110   * @since 4.9.0 Added support for post type archives.
2111   *
2112   * @see term_description()
2113   *
2114   * @return string Archive description.
2115   */
2116  function get_the_archive_description() {
2117      if ( is_author() ) {
2118          $description = get_the_author_meta( 'description' );
2119      } elseif ( is_post_type_archive() ) {
2120          $description = get_the_post_type_description();
2121      } else {
2122          $description = term_description();
2123      }
2124  
2125      /**
2126       * Filters the archive description.
2127       *
2128       * @since 4.1.0
2129       *
2130       * @param string $description Archive description to be displayed.
2131       */
2132      return apply_filters( 'get_the_archive_description', $description );
2133  }
2134  
2135  /**
2136   * Retrieves the description for a post type archive.
2137   *
2138   * @since 4.9.0
2139   *
2140   * @return string The post type description.
2141   */
2142  function get_the_post_type_description() {
2143      $post_type = get_query_var( 'post_type' );
2144  
2145      if ( is_array( $post_type ) ) {
2146          $post_type = reset( $post_type );
2147      }
2148  
2149      $post_type_obj = get_post_type_object( $post_type );
2150  
2151      // Check if a description is set.
2152      $description = $post_type_obj->description ?? '';
2153  
2154      /**
2155       * Filters the description for a post type archive.
2156       *
2157       * @since 4.9.0
2158       *
2159       * @param string       $description   The post type description.
2160       * @param WP_Post_Type $post_type_obj The post type object.
2161       */
2162      return apply_filters( 'get_the_post_type_description', $description, $post_type_obj );
2163  }
2164  
2165  /**
2166   * Retrieves archive link content based on predefined or custom code.
2167   *
2168   * The format can be one of four styles. The 'link' for head element, 'option'
2169   * for use in the select element, 'html' for use in list (either ol or ul HTML
2170   * elements). Custom content is also supported using the before and after
2171   * parameters.
2172   *
2173   * The 'link' format uses the `<link>` HTML element with the **archives**
2174   * relationship. The before and after parameters are not used. The text
2175   * parameter is used to describe the link.
2176   *
2177   * The 'option' format uses the option HTML element for use in select element.
2178   * The value is the url parameter and the before and after parameters are used
2179   * between the text description.
2180   *
2181   * The 'html' format, which is the default, uses the li HTML element for use in
2182   * the list HTML elements. The before parameter is before the link and the after
2183   * parameter is after the closing link.
2184   *
2185   * The custom format uses the before parameter before the link ('a' HTML
2186   * element) and the after parameter after the closing link tag. If the above
2187   * three values for the format are not used, then custom format is assumed.
2188   *
2189   * @since 1.0.0
2190   * @since 5.2.0 Added the `$selected` parameter.
2191   *
2192   * @param string $url      URL to archive.
2193   * @param string $text     Archive text description.
2194   * @param string $format   Optional. Can be 'link', 'option', 'html', or custom. Default 'html'.
2195   * @param string $before   Optional. Content to prepend to the description. Default empty.
2196   * @param string $after    Optional. Content to append to the description. Default empty.
2197   * @param bool   $selected Optional. Set to true if the current page is the selected archive page. Default false.
2198   * @return string HTML link content for archive.
2199   */
2200  function get_archives_link( $url, $text, $format = 'html', $before = '', $after = '', $selected = false ) {
2201      $text         = wptexturize( $text );
2202      $url          = esc_url( $url );
2203      $aria_current = $selected ? ' aria-current="page"' : '';
2204  
2205      if ( 'link' === $format ) {
2206          $link_html = "\t<link rel='archives' title='" . esc_attr( $text ) . "' href='$url' />\n";
2207      } elseif ( 'option' === $format ) {
2208          $selected_attr = $selected ? " selected='selected'" : '';
2209          $link_html     = "\t<option value='$url'$selected_attr>$before $text $after</option>\n";
2210      } elseif ( 'html' === $format ) {
2211          $link_html = "\t<li>$before<a href='$url'$aria_current>$text</a>$after</li>\n";
2212      } else { // Custom.
2213          $link_html = "\t$before<a href='$url'$aria_current>$text</a>$after\n";
2214      }
2215  
2216      /**
2217       * Filters the archive link content.
2218       *
2219       * @since 2.6.0
2220       * @since 4.5.0 Added the `$url`, `$text`, `$format`, `$before`, and `$after` parameters.
2221       * @since 5.2.0 Added the `$selected` parameter.
2222       *
2223       * @param string $link_html The archive HTML link content.
2224       * @param string $url       URL to archive.
2225       * @param string $text      Archive text description.
2226       * @param string $format    Link format. Can be 'link', 'option', 'html', or custom.
2227       * @param string $before    Content to prepend to the description.
2228       * @param string $after     Content to append to the description.
2229       * @param bool   $selected  True if the current page is the selected archive.
2230       */
2231      return apply_filters( 'get_archives_link', $link_html, $url, $text, $format, $before, $after, $selected );
2232  }
2233  
2234  /**
2235   * Displays archive links based on type and format.
2236   *
2237   * @since 1.2.0
2238   * @since 4.4.0 The `$post_type` argument was added.
2239   * @since 5.2.0 The `$year`, `$monthnum`, `$day`, and `$w` arguments were added.
2240   *
2241   * @see get_archives_link()
2242   *
2243   * @global wpdb      $wpdb      WordPress database abstraction object.
2244   * @global WP_Locale $wp_locale WordPress date and time locale object.
2245   *
2246   * @param string|array $args {
2247   *     Default archive links arguments. Optional.
2248   *
2249   *     @type string     $type            Type of archive to retrieve. Accepts 'daily', 'weekly', 'monthly',
2250   *                                       'yearly', 'postbypost', or 'alpha'. Both 'postbypost' and 'alpha'
2251   *                                       display the same archive link list as well as post titles instead
2252   *                                       of displaying dates. The difference between the two is that 'alpha'
2253   *                                       will order by post title and 'postbypost' will order by post date.
2254   *                                       Default 'monthly'.
2255   *     @type string|int $limit           Number of links to limit the query to. Default empty (no limit).
2256   *     @type string     $format          Format each link should take using the $before and $after args.
2257   *                                       Accepts 'link' (`<link>` tag), 'option' (`<option>` tag), 'html'
2258   *                                       (`<li>` tag), or a custom format, which generates a link anchor
2259   *                                       with $before preceding and $after succeeding. Default 'html'.
2260   *     @type string     $before          Markup to prepend to the beginning of each link. Default empty.
2261   *     @type string     $after           Markup to append to the end of each link. Default empty.
2262   *     @type bool       $show_post_count Whether to display the post count alongside the link. Default false.
2263   *     @type bool|int   $echo            Whether to echo or return the links list. Default 1|true to echo.
2264   *     @type string     $order           Whether to use ascending or descending order. Accepts 'ASC', or 'DESC'.
2265   *                                       Default 'DESC'.
2266   *     @type string     $post_type       Post type. Default 'post'.
2267   *     @type string     $year            Year. Default current year.
2268   *     @type string     $monthnum        Month number. Default current month number.
2269   *     @type string     $day             Day. Default current day.
2270   *     @type string     $w               Week. Default current week.
2271   * }
2272   * @return string|null|void Archive links when 'echo' is false, null when the post type is
2273   *                          not viewable. Nothing otherwise.
2274   * @phpstan-return (
2275   *     $args is array{ echo: false|0|''|'0', ... }
2276   *         ? string|null
2277   *         : ( $args is ''|'0'|array ? void : string|null )
2278   * )
2279   */
2280  function wp_get_archives( $args = '' ) {
2281      global $wpdb, $wp_locale;
2282  
2283      $defaults = array(
2284          'type'            => 'monthly',
2285          'limit'           => '',
2286          'format'          => 'html',
2287          'before'          => '',
2288          'after'           => '',
2289          'show_post_count' => false,
2290          'echo'            => 1,
2291          'order'           => 'DESC',
2292          'post_type'       => 'post',
2293          'year'            => get_query_var( 'year' ),
2294          'monthnum'        => get_query_var( 'monthnum' ),
2295          'day'             => get_query_var( 'day' ),
2296          'w'               => get_query_var( 'w' ),
2297      );
2298  
2299      /**
2300       * Filters the arguments for displaying archive links.
2301       *
2302       * @since 7.0.0
2303       *
2304       * @see wp_get_archives()
2305       *
2306       * @param array<string, string|int|bool> $args Arguments.
2307       */
2308      $args = apply_filters( 'wp_get_archives_args', $args );
2309  
2310      $parsed_args = wp_parse_args( $args, $defaults );
2311  
2312      $post_type_object = get_post_type_object( $parsed_args['post_type'] );
2313      if ( ! is_post_type_viewable( $post_type_object ) ) {
2314          return null;
2315      }
2316  
2317      $parsed_args['post_type'] = $post_type_object->name;
2318  
2319      if ( '' === $parsed_args['type'] ) {
2320          $parsed_args['type'] = 'monthly';
2321      }
2322  
2323      if ( ! empty( $parsed_args['limit'] ) ) {
2324          $parsed_args['limit'] = absint( $parsed_args['limit'] );
2325          $parsed_args['limit'] = ' LIMIT ' . $parsed_args['limit'];
2326      }
2327  
2328      $order = strtoupper( $parsed_args['order'] );
2329      if ( 'ASC' !== $order ) {
2330          $order = 'DESC';
2331      }
2332  
2333      // This is what will separate dates on weekly archive links.
2334      $archive_week_separator = '&#8211;';
2335  
2336      $sql_where = $wpdb->prepare( "WHERE post_type = %s AND post_status = 'publish'", $parsed_args['post_type'] );
2337  
2338      /**
2339       * Filters the SQL WHERE clause for retrieving archives.
2340       *
2341       * @since 2.2.0
2342       *
2343       * @param string $sql_where   Portion of SQL query containing the WHERE clause.
2344       * @param array  $parsed_args An array of default arguments.
2345       */
2346      $where = apply_filters( 'getarchives_where', $sql_where, $parsed_args );
2347  
2348      /**
2349       * Filters the SQL JOIN clause for retrieving archives.
2350       *
2351       * @since 2.2.0
2352       *
2353       * @param string $sql_join    Portion of SQL query containing JOIN clause.
2354       * @param array  $parsed_args An array of default arguments.
2355       */
2356      $join = apply_filters( 'getarchives_join', '', $parsed_args );
2357  
2358      $output = '';
2359  
2360      $last_changed = wp_cache_get_last_changed( 'posts' );
2361  
2362      $limit = $parsed_args['limit'];
2363  
2364      if ( 'monthly' === $parsed_args['type'] ) {
2365          $query   = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date), MONTH(post_date) ORDER BY post_date $order $limit";
2366          $key     = md5( $query );
2367          $key     = "wp_get_archives:$key";
2368          $results = wp_cache_get_salted( $key, 'post-queries', $last_changed );
2369          if ( ! $results ) {
2370              $results = $wpdb->get_results( $query );
2371              wp_cache_set_salted( $key, $results, 'post-queries', $last_changed );
2372          }
2373          if ( $results ) {
2374              $after = $parsed_args['after'];
2375              foreach ( (array) $results as $result ) {
2376                  $url = get_month_link( $result->year, $result->month );
2377                  if ( 'post' !== $parsed_args['post_type'] ) {
2378                      $url = add_query_arg( 'post_type', $parsed_args['post_type'], $url );
2379                  }
2380                  /* translators: 1: Month name, 2: 4-digit year. */
2381                  $text = sprintf( __( '%1$s %2$d' ), $wp_locale->get_month( $result->month ), $result->year );
2382                  if ( $parsed_args['show_post_count'] ) {
2383                      $parsed_args['after'] = '&nbsp;(' . $result->posts . ')' . $after;
2384                  }
2385                  $selected = is_archive() && (string) $parsed_args['year'] === $result->year && (string) $parsed_args['monthnum'] === $result->month;
2386                  $output  .= get_archives_link( $url, $text, $parsed_args['format'], $parsed_args['before'], $parsed_args['after'], $selected );
2387              }
2388          }
2389      } elseif ( 'yearly' === $parsed_args['type'] ) {
2390          $query   = "SELECT YEAR(post_date) AS `year`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date) ORDER BY post_date $order $limit";
2391          $key     = md5( $query );
2392          $key     = "wp_get_archives:$key";
2393          $results = wp_cache_get_salted( $key, 'post-queries', $last_changed );
2394          if ( ! $results ) {
2395              $results = $wpdb->get_results( $query );
2396              wp_cache_set_salted( $key, $results, 'post-queries', $last_changed );
2397          }
2398          if ( $results ) {
2399              $after = $parsed_args['after'];
2400              foreach ( (array) $results as $result ) {
2401                  $url = get_year_link( $result->year );
2402                  if ( 'post' !== $parsed_args['post_type'] ) {
2403                      $url = add_query_arg( 'post_type', $parsed_args['post_type'], $url );
2404                  }
2405                  $text = sprintf( '%d', $result->year );
2406                  if ( $parsed_args['show_post_count'] ) {
2407                      $parsed_args['after'] = '&nbsp;(' . $result->posts . ')' . $after;
2408                  }
2409                  $selected = is_archive() && (string) $parsed_args['year'] === $result->year;
2410                  $output  .= get_archives_link( $url, $text, $parsed_args['format'], $parsed_args['before'], $parsed_args['after'], $selected );
2411              }
2412          }
2413      } elseif ( 'daily' === $parsed_args['type'] ) {
2414          $query   = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, DAYOFMONTH(post_date) AS `dayofmonth`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date), MONTH(post_date), DAYOFMONTH(post_date) ORDER BY post_date $order $limit";
2415          $key     = md5( $query );
2416          $key     = "wp_get_archives:$key";
2417          $results = wp_cache_get_salted( $key, 'post-queries', $last_changed );
2418          if ( ! $results ) {
2419              $results = $wpdb->get_results( $query );
2420              wp_cache_set_salted( $key, $results, 'post-queries', $last_changed );
2421          }
2422          if ( $results ) {
2423              $after       = $parsed_args['after'];
2424              $date_format = get_option( 'date_format' );
2425              foreach ( (array) $results as $result ) {
2426                  $url = get_day_link( $result->year, $result->month, $result->dayofmonth );
2427                  if ( 'post' !== $parsed_args['post_type'] ) {
2428                      $url = add_query_arg( 'post_type', $parsed_args['post_type'], $url );
2429                  }
2430                  $date = sprintf( '%1$d-%2$02d-%3$02d 00:00:00', $result->year, $result->month, $result->dayofmonth );
2431                  $text = mysql2date( $date_format, $date );
2432                  if ( $parsed_args['show_post_count'] ) {
2433                      $parsed_args['after'] = '&nbsp;(' . $result->posts . ')' . $after;
2434                  }
2435                  $selected = is_archive() && (string) $parsed_args['year'] === $result->year && (string) $parsed_args['monthnum'] === $result->month && (string) $parsed_args['day'] === $result->dayofmonth;
2436                  $output  .= get_archives_link( $url, $text, $parsed_args['format'], $parsed_args['before'], $parsed_args['after'], $selected );
2437              }
2438          }
2439      } elseif ( 'weekly' === $parsed_args['type'] ) {
2440          $week    = _wp_mysql_week( '`post_date`' );
2441          $query   = "SELECT DISTINCT $week AS `week`, YEAR( `post_date` ) AS `yr`, DATE_FORMAT( `post_date`, '%Y-%m-%d' ) AS `yyyymmdd`, count( `ID` ) AS `posts` FROM `$wpdb->posts` $join $where GROUP BY $week, YEAR( `post_date` ) ORDER BY `post_date` $order $limit";
2442          $key     = md5( $query );
2443          $key     = "wp_get_archives:$key";
2444          $results = wp_cache_get_salted( $key, 'post-queries', $last_changed );
2445          if ( ! $results ) {
2446              $results = $wpdb->get_results( $query );
2447              wp_cache_set_salted( $key, $results, 'post-queries', $last_changed );
2448          }
2449          $arc_w_last = '';
2450          if ( $results ) {
2451              $after         = $parsed_args['after'];
2452              $start_of_week = get_option( 'start_of_week' );
2453              $date_format   = get_option( 'date_format' );
2454              foreach ( (array) $results as $result ) {
2455                  if ( $result->week !== $arc_w_last ) {
2456                      $arc_year       = $result->yr;
2457                      $arc_w_last     = $result->week;
2458                      $arc_week       = get_weekstartend( $result->yyyymmdd, $start_of_week );
2459                      $arc_week_start = date_i18n( $date_format, $arc_week['start'] );
2460                      $arc_week_end   = date_i18n( $date_format, $arc_week['end'] );
2461                      $url            = add_query_arg(
2462                          array(
2463                              'm' => $arc_year,
2464                              'w' => $result->week,
2465                          ),
2466                          home_url( '/' )
2467                      );
2468                      if ( 'post' !== $parsed_args['post_type'] ) {
2469                          $url = add_query_arg( 'post_type', $parsed_args['post_type'], $url );
2470                      }
2471                      $text = $arc_week_start . $archive_week_separator . $arc_week_end;
2472                      if ( $parsed_args['show_post_count'] ) {
2473                          $parsed_args['after'] = '&nbsp;(' . $result->posts . ')' . $after;
2474                      }
2475                      $selected = is_archive() && (string) $parsed_args['year'] === $result->yr && (string) $parsed_args['w'] === $result->week;
2476                      $output  .= get_archives_link( $url, $text, $parsed_args['format'], $parsed_args['before'], $parsed_args['after'], $selected );
2477                  }
2478              }
2479          }
2480      } elseif ( ( 'postbypost' === $parsed_args['type'] ) || ( 'alpha' === $parsed_args['type'] ) ) {
2481          $orderby = ( 'alpha' === $parsed_args['type'] ) ? 'post_title ASC ' : 'post_date DESC, ID DESC ';
2482          $query   = "SELECT * FROM $wpdb->posts $join $where ORDER BY $orderby $limit";
2483          $key     = md5( $query );
2484          $key     = "wp_get_archives:$key";
2485          $results = wp_cache_get_salted( $key, 'post-queries', $last_changed );
2486          if ( ! $results ) {
2487              $results = $wpdb->get_results( $query );
2488              wp_cache_set_salted( $key, $results, 'post-queries', $last_changed );
2489          }
2490          if ( $results ) {
2491              foreach ( (array) $results as $result ) {
2492                  if ( '0000-00-00 00:00:00' !== $result->post_date ) {
2493                      $url = get_permalink( $result );
2494                      if ( $result->post_title ) {
2495                          /** This filter is documented in wp-includes/post-template.php */
2496                          $text = strip_tags( apply_filters( 'the_title', $result->post_title, $result->ID ) );
2497                      } else {
2498                          $text = $result->ID;
2499                      }
2500                      $selected = get_the_ID() === $result->ID;
2501                      $output  .= get_archives_link( $url, $text, $parsed_args['format'], $parsed_args['before'], $parsed_args['after'], $selected );
2502                  }
2503              }
2504          }
2505      }
2506  
2507      if ( $parsed_args['echo'] ) {
2508          echo $output;
2509      } else {
2510          return $output;
2511      }
2512  }
2513  
2514  /**
2515   * Gets number of days since the start of the week.
2516   *
2517   * @since 1.5.0
2518   *
2519   * @param int $num Number of day.
2520   * @return float Days since the start of the week.
2521   */
2522  function calendar_week_mod( $num ) {
2523      $base = 7;
2524      return ( $num - $base * floor( $num / $base ) );
2525  }
2526  
2527  /**
2528   * Displays calendar with days that have posts as links.
2529   *
2530   * The calendar is cached, which will be retrieved, if it exists. If there are
2531   * no posts for the month, then it will not be displayed.
2532   *
2533   * @since 1.0.0
2534   * @since 6.8.0 Added the `$args` parameter, with backward compatibility
2535   *              for the replaced `$initial` and `$display` parameters.
2536   *
2537   * @global wpdb      $wpdb      WordPress database abstraction object.
2538   * @global int       $m
2539   * @global int       $monthnum
2540   * @global int       $year
2541   * @global WP_Locale $wp_locale WordPress date and time locale object.
2542   * @global array     $posts
2543   *
2544   * @param array $args {
2545   *     Optional. Arguments for the `get_calendar` function.
2546   *
2547   *     @type bool   $initial   Whether to use initial calendar names. Default true.
2548   *     @type bool   $display   Whether to display the calendar output. Default true.
2549   *     @type string $post_type Optional. Post type. Default 'post'.
2550   * }
2551   * @return string|null|void Calendar HTML when `$display` is false, null when the site has
2552   *                          no posts. Nothing otherwise.
2553   * @phpstan-return ( $args is array{ display: false|0|''|'0', ... } ? string|null : void )
2554   */
2555  function get_calendar( $args = array() ) {
2556      global $wpdb, $m, $monthnum, $year, $wp_locale, $posts;
2557  
2558      $defaults = array(
2559          'initial'   => true,
2560          'display'   => true,
2561          'post_type' => 'post',
2562      );
2563  
2564      $original_args = func_get_args();
2565      $args          = array();
2566  
2567      if ( ! empty( $original_args ) ) {
2568          if ( ! is_array( $original_args[0] ) ) {
2569              if ( isset( $original_args[0] ) && is_bool( $original_args[0] ) ) {
2570                  $defaults['initial'] = $original_args[0];
2571              }
2572              if ( isset( $original_args[1] ) && is_bool( $original_args[1] ) ) {
2573                  $defaults['display'] = $original_args[1];
2574              }
2575          } else {
2576              $args = $original_args[0];
2577          }
2578      }
2579  
2580      /**
2581       * Filter the `get_calendar` function arguments before they are used.
2582       *
2583       * @since 6.8.0
2584       *
2585       * @param array $args {
2586       *     Optional. Arguments for the `get_calendar` function.
2587       *
2588       *     @type bool   $initial   Whether to use initial calendar names. Default true.
2589       *     @type bool   $display   Whether to display the calendar output. Default true.
2590       *     @type string $post_type Optional. Post type. Default 'post'.
2591       * }
2592       */
2593      $args = apply_filters( 'get_calendar_args', wp_parse_args( $args, $defaults ) );
2594  
2595      if ( ! post_type_exists( $args['post_type'] ) ) {
2596          $args['post_type'] = 'post';
2597      }
2598  
2599      $w = 0;
2600      if ( isset( $_GET['w'] ) ) {
2601          $w = (int) $_GET['w'];
2602      }
2603  
2604      /*
2605       * Normalize the cache key.
2606       *
2607       * The following ensures the same cache key is used for the same parameter
2608       * and parameter equivalents. This prevents `post_type > post, initial > true`
2609       * from generating a different key from the same values in the reverse order.
2610       *
2611       * `display` is excluded from the cache key as the cache contains the same
2612       * HTML regardless of this function's need to echo or return the output.
2613       *
2614       * The global values contain data generated by the URL query string variables.
2615       */
2616      $cache_args = $args;
2617      unset( $cache_args['display'] );
2618  
2619      $cache_args['globals'] = array(
2620          'm'        => $m,
2621          'monthnum' => $monthnum,
2622          'year'     => $year,
2623          'week'     => $w,
2624      );
2625  
2626      wp_recursive_ksort( $cache_args );
2627      $key   = md5( serialize( $cache_args ) );
2628      $cache = wp_cache_get( 'get_calendar', 'calendar' );
2629  
2630      if ( $cache && is_array( $cache ) && isset( $cache[ $key ] ) ) {
2631          /** This filter is documented in wp-includes/general-template.php */
2632          $output = apply_filters( 'get_calendar', $cache[ $key ], $args );
2633  
2634          if ( $args['display'] ) {
2635              echo $output;
2636              return;
2637          }
2638  
2639          return $output;
2640      }
2641  
2642      if ( ! is_array( $cache ) ) {
2643          $cache = array();
2644      }
2645  
2646      $post_type = $args['post_type'];
2647  
2648      // Quick check. If we have no posts at all, abort!
2649      if ( ! $posts ) {
2650          $gotsome = $wpdb->get_var(
2651              $wpdb->prepare(
2652                  "SELECT 1 as test
2653                  FROM $wpdb->posts
2654                  WHERE post_type = %s
2655                  AND post_status = 'publish'
2656                  LIMIT 1",
2657                  $post_type
2658              )
2659          );
2660  
2661          if ( ! $gotsome ) {
2662              $cache[ $key ] = '';
2663              wp_cache_set( 'get_calendar', $cache, 'calendar' );
2664              return null;
2665          }
2666      }
2667  
2668      // week_begins = 0 stands for Sunday.
2669      $week_begins = (int) get_option( 'start_of_week' );
2670  
2671      // Read the current date.
2672      list( $current_year, $current_month, $current_day ) = array_map( 'intval', explode( '-', current_time( 'Y-m-j' ) ) );
2673  
2674      // Let's figure out when we are.
2675      if ( ! empty( $monthnum ) && ! empty( $year ) ) {
2676          $thismonth = (int) $monthnum;
2677          $thisyear  = (int) $year;
2678      } elseif ( ! empty( $w ) ) {
2679          // We need to get the month from MySQL.
2680          $thisyear = (int) substr( $m, 0, 4 );
2681          // It seems MySQL's weeks disagree with PHP's.
2682          $d         = ( ( $w - 1 ) * 7 ) + 6;
2683          $thismonth = (int) $wpdb->get_var(
2684              $wpdb->prepare(
2685                  "SELECT DATE_FORMAT((DATE_ADD('%d0101', INTERVAL %d DAY) ), '%%m')",
2686                  $thisyear,
2687                  $d
2688              )
2689          );
2690      } elseif ( ! empty( $m ) ) {
2691          $thisyear = (int) substr( $m, 0, 4 );
2692          if ( strlen( $m ) < 6 ) {
2693              $thismonth = 1;
2694          } else {
2695              $thismonth = (int) substr( $m, 4, 2 );
2696          }
2697      } else {
2698          $thisyear  = $current_year;
2699          $thismonth = $current_month;
2700      }
2701  
2702      $unixmonth = mktime( 0, 0, 0, $thismonth, 1, $thisyear );
2703      $last_day  = gmdate( 't', $unixmonth );
2704  
2705      // Get the next and previous month and year with at least one post.
2706      $previous = $wpdb->get_row(
2707          $wpdb->prepare(
2708              "SELECT MONTH(post_date) AS month, YEAR(post_date) AS year
2709              FROM $wpdb->posts
2710              WHERE post_date < '%d-%d-01'
2711              AND post_type = %s AND post_status = 'publish'
2712              ORDER BY post_date DESC
2713              LIMIT 1",
2714              $thisyear,
2715              zeroise( $thismonth, 2 ),
2716              $post_type
2717          )
2718      );
2719  
2720      $next = $wpdb->get_row(
2721          $wpdb->prepare(
2722              "SELECT MONTH(post_date) AS month, YEAR(post_date) AS year
2723              FROM $wpdb->posts
2724              WHERE post_date > '%d-%d-%d 23:59:59'
2725              AND post_type = %s AND post_status = 'publish'
2726              ORDER BY post_date ASC
2727              LIMIT 1",
2728              $thisyear,
2729              zeroise( $thismonth, 2 ),
2730              $last_day,
2731              $post_type
2732          )
2733      );
2734  
2735      /* translators: Calendar caption: 1: Month name, 2: 4-digit year. */
2736      $calendar_caption = _x( '%1$s %2$s', 'calendar caption' );
2737      $calendar_output  = '<table id="wp-calendar" class="wp-calendar-table">
2738      <caption>' . sprintf(
2739          $calendar_caption,
2740          $wp_locale->get_month( $thismonth ),
2741          gmdate( 'Y', $unixmonth )
2742      ) . '</caption>
2743      <thead>
2744      <tr>';
2745  
2746      $myweek = array();
2747  
2748      for ( $wdcount = 0; $wdcount <= 6; $wdcount++ ) {
2749          $myweek[] = $wp_locale->get_weekday( ( $wdcount + $week_begins ) % 7 );
2750      }
2751  
2752      foreach ( $myweek as $wd ) {
2753          $day_name         = $args['initial'] ? $wp_locale->get_weekday_initial( $wd ) : $wp_locale->get_weekday_abbrev( $wd );
2754          $wd               = esc_attr( $wd );
2755          $calendar_output .= "\n\t\t<th scope=\"col\" aria-label=\"$wd\">$day_name</th>";
2756      }
2757  
2758      $calendar_output .= '
2759      </tr>
2760      </thead>
2761      <tbody>
2762      <tr>';
2763  
2764      $daywithpost = array();
2765  
2766      // Get days with posts.
2767      $dayswithposts = $wpdb->get_results(
2768          $wpdb->prepare(
2769              "SELECT DISTINCT DAYOFMONTH(post_date)
2770              FROM $wpdb->posts WHERE post_date >= '%d-%d-01 00:00:00'
2771              AND post_type = %s AND post_status = 'publish'
2772              AND post_date <= '%d-%d-%d 23:59:59'",
2773              $thisyear,
2774              zeroise( $thismonth, 2 ),
2775              $post_type,
2776              $thisyear,
2777              zeroise( $thismonth, 2 ),
2778              $last_day
2779          ),
2780          ARRAY_N
2781      );
2782  
2783      if ( $dayswithposts ) {
2784          foreach ( (array) $dayswithposts as $daywith ) {
2785              $daywithpost[] = (int) $daywith[0];
2786          }
2787      }
2788  
2789      // See how much we should pad in the beginning.
2790      $pad = calendar_week_mod( (int) gmdate( 'w', $unixmonth ) - $week_begins );
2791      if ( $pad > 0 ) {
2792          $calendar_output .= "\n\t\t" . '<td colspan="' . esc_attr( $pad ) . '" class="pad">&nbsp;</td>';
2793      }
2794  
2795      $newrow      = false;
2796      $daysinmonth = (int) gmdate( 't', $unixmonth );
2797  
2798      for ( $day = 1; $day <= $daysinmonth; ++$day ) {
2799          if ( $newrow ) {
2800              $calendar_output .= "\n\t</tr>\n\t<tr>\n\t\t";
2801          }
2802  
2803          $newrow = false;
2804  
2805          if ( $current_day === $day
2806              && $current_month === $thismonth
2807              && $current_year === $thisyear
2808          ) {
2809              $calendar_output .= '<td id="today">';
2810          } else {
2811              $calendar_output .= '<td>';
2812          }
2813  
2814          if ( in_array( $day, $daywithpost, true ) ) {
2815              // Any posts today?
2816              $date_format = gmdate( _x( 'F j, Y', 'daily archives date format' ), strtotime( "{$thisyear}-{$thismonth}-{$day}" ) );
2817              /* translators: Post calendar label. %s: Date. */
2818              $label            = sprintf( __( 'Posts published on %s' ), $date_format );
2819              $calendar_output .= sprintf(
2820                  '<a href="%s" aria-label="%s">%s</a>',
2821                  get_day_link( $thisyear, $thismonth, $day ),
2822                  esc_attr( $label ),
2823                  $day
2824              );
2825          } else {
2826              $calendar_output .= $day;
2827          }
2828  
2829          $calendar_output .= '</td>';
2830  
2831          if ( 6 === (int) calendar_week_mod( (int) gmdate( 'w', mktime( 0, 0, 0, $thismonth, $day, $thisyear ) ) - $week_begins ) ) {
2832              $newrow = true;
2833          }
2834      }
2835  
2836      $pad = 7 - calendar_week_mod( (int) gmdate( 'w', mktime( 0, 0, 0, $thismonth, $day, $thisyear ) ) - $week_begins );
2837      if ( 0 < $pad && $pad < 7 ) {
2838          $calendar_output .= "\n\t\t" . '<td class="pad" colspan="' . esc_attr( $pad ) . '">&nbsp;</td>';
2839      }
2840  
2841      $calendar_output .= "\n\t</tr>\n\t</tbody>";
2842  
2843      $calendar_output .= "\n\t</table>";
2844  
2845      $calendar_output .= '<nav aria-label="' . __( 'Previous and next months' ) . '" class="wp-calendar-nav">';
2846  
2847      if ( $previous ) {
2848          $calendar_output .= "\n\t\t" . sprintf(
2849              '<span class="wp-calendar-nav-prev"><a href="%1$s">&laquo; %2$s</a></span>',
2850              get_month_link( $previous->year, $previous->month ),
2851              $wp_locale->get_month_abbrev( $wp_locale->get_month( $previous->month ) )
2852          );
2853      } else {
2854          $calendar_output .= "\n\t\t" . '<span class="wp-calendar-nav-prev">&nbsp;</span>';
2855      }
2856  
2857      $calendar_output .= "\n\t\t" . '<span class="pad">&nbsp;</span>';
2858  
2859      if ( $next ) {
2860          $calendar_output .= "\n\t\t" . sprintf(
2861              '<span class="wp-calendar-nav-next"><a href="%1$s">%2$s &raquo;</a></span>',
2862              get_month_link( $next->year, $next->month ),
2863              $wp_locale->get_month_abbrev( $wp_locale->get_month( $next->month ) )
2864          );
2865      } else {
2866          $calendar_output .= "\n\t\t" . '<span class="wp-calendar-nav-next">&nbsp;</span>';
2867      }
2868  
2869      $calendar_output .= '
2870      </nav>';
2871  
2872      $cache[ $key ] = $calendar_output;
2873      wp_cache_set( 'get_calendar', $cache, 'calendar' );
2874  
2875      /**
2876       * Filters the HTML calendar output.
2877       *
2878       * @since 3.0.0
2879       * @since 6.8.0 Added the `$args` parameter.
2880       *
2881       * @param string $calendar_output HTML output of the calendar.
2882       * @param array  $args {
2883       *     Optional. Array of display arguments.
2884       *
2885       *     @type bool   $initial   Whether to use initial calendar names. Default true.
2886       *     @type bool   $display   Whether to display the calendar output. Default true.
2887       *     @type string $post_type Optional. Post type. Default 'post'.
2888       * }
2889       */
2890      $calendar_output = apply_filters( 'get_calendar', $calendar_output, $args );
2891  
2892      if ( $args['display'] ) {
2893          echo $calendar_output;
2894          return;
2895      }
2896  
2897      return $calendar_output;
2898  }
2899  
2900  /**
2901   * Purges the cached results of get_calendar.
2902   *
2903   * @see get_calendar()
2904   * @since 2.1.0
2905   */
2906  function delete_get_calendar_cache() {
2907      wp_cache_delete( 'get_calendar', 'calendar' );
2908  }
2909  
2910  /**
2911   * Displays all of the allowed tags in HTML format with attributes.
2912   *
2913   * This is useful for displaying in the comment area, which elements and
2914   * attributes are supported. As well as any plugins which want to display it.
2915   *
2916   * @since 1.0.1
2917   * @since 4.4.0 No longer used in core.
2918   *
2919   * @global array $allowedtags
2920   *
2921   * @return string HTML allowed tags entity encoded.
2922   */
2923  function allowed_tags() {
2924      global $allowedtags;
2925      $allowed = '';
2926      foreach ( (array) $allowedtags as $tag => $attributes ) {
2927          $allowed .= '<' . $tag;
2928          if ( 0 < count( $attributes ) ) {
2929              foreach ( $attributes as $attribute => $limits ) {
2930                  $allowed .= ' ' . $attribute . '=""';
2931              }
2932          }
2933          $allowed .= '> ';
2934      }
2935      return htmlentities( $allowed );
2936  }
2937  
2938  /***** Date/Time tags */
2939  
2940  /**
2941   * Outputs the date in iso8601 format for xml files.
2942   *
2943   * @since 1.0.0
2944   */
2945  function the_date_xml() {
2946      echo mysql2date( 'Y-m-d', get_post()->post_date, false );
2947  }
2948  
2949  /**
2950   * Displays or retrieves the date of the post (once per date).
2951   *
2952   * Will only output the date if the current post's date is different from the
2953   * previous one output.
2954   *
2955   * i.e. Only one date listing will show per day worth of posts shown in the loop, even if the
2956   * function is called several times for each post.
2957   *
2958   * HTML output can be filtered with {@see 'the_date'}.
2959   * Date string output can be filtered with {@see 'get_the_date'}.
2960   *
2961   * @since 0.71
2962   *
2963   * @global string $currentday  The day of the current post in the loop.
2964   * @global string $previousday The day of the previous post in the loop.
2965   *
2966   * @param string $format  Optional. PHP date format. Defaults to the 'date_format' option.
2967   * @param string $before  Optional. Output before the date. Default empty.
2968   * @param string $after   Optional. Output after the date. Default empty.
2969   * @param bool   $display Optional. Whether to echo the date or return it. Default true.
2970   * @return string|void The date when `$display` is false, or an empty string when the post's
2971   *                     date matches the previously output one. Nothing otherwise.
2972   * @phpstan-return ( $display is true ? void : string )
2973   */
2974  function the_date( $format = '', $before = '', $after = '', $display = true ) {
2975      global $currentday, $previousday;
2976  
2977      $the_date = '';
2978  
2979      if ( is_new_day() ) {
2980          $the_date    = $before . get_the_date( $format ) . $after;
2981          $previousday = $currentday;
2982      }
2983  
2984      /**
2985       * Filters the date of the post, for display.
2986       *
2987       * @since 0.71
2988       *
2989       * @param string $the_date The formatted date string.
2990       * @param string $format   PHP date format.
2991       * @param string $before   HTML output before the date.
2992       * @param string $after    HTML output after the date.
2993       */
2994      $the_date = apply_filters( 'the_date', $the_date, $format, $before, $after );
2995  
2996      if ( ! $display ) {
2997          return $the_date;
2998      }
2999  
3000      echo $the_date;
3001  }
3002  
3003  /**
3004   * Retrieves the date of the post.
3005   *
3006   * Unlike the_date() this function will always return the date.
3007   * Modify output with the {@see 'get_the_date'} filter.
3008   *
3009   * @since 3.0.0
3010   *
3011   * @param string           $format Optional. PHP date format. Defaults to the 'date_format' option.
3012   * @param int|WP_Post|null $post   Optional. Post ID or WP_Post object. Default current post.
3013   * @return string|int|false Date the current post was written. False on failure.
3014   *
3015   * @phpstan-return ( $format is 'U'|'G' ? int|false : string|false )
3016   */
3017  function get_the_date( $format = '', $post = null ) {
3018      $post = get_post( $post );
3019  
3020      if ( ! $post ) {
3021          return false;
3022      }
3023  
3024      $_format = ! empty( $format ) ? $format : get_option( 'date_format' );
3025  
3026      $the_date = get_post_time( $_format, false, $post, true );
3027  
3028      /**
3029       * Filters the date of the post.
3030       *
3031       * @since 3.0.0
3032       *
3033       * @param string|int $the_date Formatted date string or Unix timestamp if `$format` is 'U' or 'G'.
3034       * @param string     $format   PHP date format.
3035       * @param WP_Post    $post     The post object.
3036       */
3037      return apply_filters( 'get_the_date', $the_date, $format, $post );
3038  }
3039  
3040  /**
3041   * Displays the date on which the post was last modified.
3042   *
3043   * @since 2.1.0
3044   *
3045   * @param string $format  Optional. PHP date format. Defaults to the 'date_format' option.
3046   * @param string $before  Optional. Output before the date. Default empty.
3047   * @param string $after   Optional. Output after the date. Default empty.
3048   * @param bool   $display Optional. Whether to echo the date or return it. Default true.
3049   * @return string|void The modified date when `$display` is false, nothing otherwise.
3050   * @phpstan-return ( $display is true ? void : string )
3051   */
3052  function the_modified_date( $format = '', $before = '', $after = '', $display = true ) {
3053      $the_modified_date = $before . get_the_modified_date( $format ) . $after;
3054  
3055      /**
3056       * Filters the date a post was last modified, for display.
3057       *
3058       * @since 2.1.0
3059       *
3060       * @param string $the_modified_date The last modified date.
3061       * @param string $format            PHP date format.
3062       * @param string $before            HTML output before the date.
3063       * @param string $after             HTML output after the date.
3064       */
3065      $the_modified_date = apply_filters( 'the_modified_date', $the_modified_date, $format, $before, $after );
3066  
3067      if ( ! $display ) {
3068          return $the_modified_date;
3069      }
3070  
3071      echo $the_modified_date;
3072  }
3073  
3074  /**
3075   * Retrieves the date on which the post was last modified.
3076   *
3077   * @since 2.1.0
3078   * @since 4.6.0 Added the `$post` parameter.
3079   *
3080   * @param string           $format Optional. PHP date format. Defaults to the 'date_format' option.
3081   * @param int|WP_Post|null $post   Optional. Post ID or WP_Post object. Default current post.
3082   * @return string|int|false Date the current post was modified. False on failure.
3083   *
3084   * @phpstan-return ( $format is 'U'|'G' ? int|false : string|false )
3085   */
3086  function get_the_modified_date( $format = '', $post = null ) {
3087      $post = get_post( $post );
3088  
3089      if ( ! $post ) {
3090          // For backward compatibility, failures go through the filter below.
3091          $the_time = false;
3092      } else {
3093          $_format = ! empty( $format ) ? $format : get_option( 'date_format' );
3094  
3095          $the_time = get_post_modified_time( $_format, false, $post, true );
3096      }
3097  
3098      /**
3099       * Filters the date a post was last modified.
3100       *
3101       * @since 2.1.0
3102       * @since 4.6.0 Added the `$post` parameter.
3103       *
3104       * @param string|int|false $the_time The formatted date or false if no post is found.
3105       * @param string           $format   PHP date format.
3106       * @param WP_Post|null     $post     WP_Post object or null if no post is found.
3107       */
3108      return apply_filters( 'get_the_modified_date', $the_time, $format, $post );
3109  }
3110  
3111  /**
3112   * Displays the time of the post.
3113   *
3114   * @since 0.71
3115   *
3116   * @param string $format Optional. Format to use for retrieving the time the post
3117   *                       was written. Accepts 'G', 'U', or PHP date format.
3118   *                       Defaults to the 'time_format' option.
3119   */
3120  function the_time( $format = '' ) {
3121      /**
3122       * Filters the time of the post, for display.
3123       *
3124       * @since 0.71
3125       *
3126       * @param string $get_the_time The formatted time.
3127       * @param string $format       Format to use for retrieving the time the post
3128       *                             was written. Accepts 'G', 'U', or PHP date format.
3129       */
3130      echo apply_filters( 'the_time', get_the_time( $format ), $format );
3131  }
3132  
3133  /**
3134   * Retrieves the time of the post.
3135   *
3136   * @since 1.5.0
3137   *
3138   * @param string           $format Optional. Format to use for retrieving the time the post
3139   *                                 was written. Accepts 'G', 'U', or PHP date format.
3140   *                                 Defaults to the 'time_format' option.
3141   * @param int|WP_Post|null $post   Post ID or post object. Default is global `$post` object.
3142   * @return string|int|false Formatted date string or Unix timestamp if `$format` is 'U' or 'G'.
3143   *                          False on failure.
3144   *
3145   * @phpstan-return ( $format is 'U'|'G' ? int|false : string|false )
3146   */
3147  function get_the_time( $format = '', $post = null ) {
3148      $post = get_post( $post );
3149  
3150      if ( ! $post ) {
3151          return false;
3152      }
3153  
3154      $_format = ! empty( $format ) ? $format : get_option( 'time_format' );
3155  
3156      $the_time = get_post_time( $_format, false, $post, true );
3157  
3158      /**
3159       * Filters the time of the post.
3160       *
3161       * @since 1.5.0
3162       *
3163       * @param string|int $the_time Formatted date string or Unix timestamp if `$format` is 'U' or 'G'.
3164       * @param string     $format   Format to use for retrieving the time the post
3165       *                             was written. Accepts 'G', 'U', or PHP date format.
3166       * @param WP_Post    $post     Post object.
3167       */
3168      return apply_filters( 'get_the_time', $the_time, $format, $post );
3169  }
3170  
3171  /**
3172   * Retrieves the localized time of the post.
3173   *
3174   * @since 2.0.0
3175   *
3176   * @param string           $format    Optional. Format to use for retrieving the time the post
3177   *                                    was written. Accepts 'G', 'U', or PHP date format. Default 'U'.
3178   * @param bool             $gmt       Optional. Whether to retrieve the GMT time. Default false.
3179   * @param int|WP_Post|null $post      Post ID or post object. Default is global `$post` object.
3180   * @param bool             $translate Whether to translate the time string. Default false.
3181   * @return string|int|false Formatted date string or Unix timestamp if `$format` is 'U' or 'G'.
3182   *                          False on failure.
3183   *
3184   * @phpstan-return ( $format is 'U'|'G' ? int|false : string|false )
3185   */
3186  function get_post_time( $format = 'U', $gmt = false, $post = null, $translate = false ) {
3187      $post = get_post( $post );
3188  
3189      if ( ! $post ) {
3190          return false;
3191      }
3192  
3193      $source   = ( $gmt ) ? 'gmt' : 'local';
3194      $datetime = get_post_datetime( $post, 'date', $source );
3195  
3196      if ( false === $datetime ) {
3197          return false;
3198      }
3199  
3200      if ( 'U' === $format || 'G' === $format ) {
3201          $time = $datetime->getTimestamp();
3202  
3203          // Returns a sum of timestamp with timezone offset. Ideally should never be used.
3204          if ( ! $gmt ) {
3205              $time += $datetime->getOffset();
3206          }
3207      } elseif ( $translate ) {
3208          $time = wp_date( $format, $datetime->getTimestamp(), $gmt ? new DateTimeZone( 'UTC' ) : null );
3209      } else {
3210          if ( $gmt ) {
3211              $datetime = $datetime->setTimezone( new DateTimeZone( 'UTC' ) );
3212          }
3213  
3214          $time = $datetime->format( $format );
3215      }
3216  
3217      /**
3218       * Filters the localized time of the post.
3219       *
3220       * @since 2.6.0
3221       *
3222       * @param string|int $time   Formatted date string or Unix timestamp if `$format` is 'U' or 'G'.
3223       * @param string     $format Format to use for retrieving the date of the post.
3224       *                           Accepts 'G', 'U', or PHP date format.
3225       * @param bool       $gmt    Whether to retrieve the GMT time.
3226       */
3227      return apply_filters( 'get_post_time', $time, $format, $gmt );
3228  }
3229  
3230  /**
3231   * Retrieves post published or modified time as a `DateTimeImmutable` object instance.
3232   *
3233   * The object will be set to the timezone from WordPress settings.
3234   *
3235   * For legacy reasons, this function allows to choose to instantiate from local or UTC time in database.
3236   * Normally this should make no difference to the result. However, the values might get out of sync in database,
3237   * typically because of timezone setting changes. The parameter ensures the ability to reproduce backwards
3238   * compatible behaviors in such cases.
3239   *
3240   * @since 5.3.0
3241   *
3242   * @param int|WP_Post|null $post   Optional. Post ID or post object. Default is global `$post` object.
3243   * @param string           $field  Optional. Published or modified time to use from database. Accepts 'date' or 'modified'.
3244   *                                 Default 'date'.
3245   * @param string           $source Optional. Local or UTC time to use from database. Accepts 'local' or 'gmt'.
3246   *                                 Default 'local'.
3247   * @return DateTimeImmutable|false Time object on success, false on failure.
3248   */
3249  function get_post_datetime( $post = null, $field = 'date', $source = 'local' ) {
3250      $post = get_post( $post );
3251  
3252      if ( ! $post ) {
3253          return false;
3254      }
3255  
3256      $wp_timezone = wp_timezone();
3257  
3258      if ( 'gmt' === $source ) {
3259          $time     = ( 'modified' === $field ) ? $post->post_modified_gmt : $post->post_date_gmt;
3260          $timezone = new DateTimeZone( 'UTC' );
3261      } else {
3262          $time     = ( 'modified' === $field ) ? $post->post_modified : $post->post_date;
3263          $timezone = $wp_timezone;
3264      }
3265  
3266      if ( empty( $time ) || '0000-00-00 00:00:00' === $time ) {
3267          return false;
3268      }
3269  
3270      $datetime = date_create_immutable_from_format( 'Y-m-d H:i:s', $time, $timezone );
3271  
3272      if ( false === $datetime ) {
3273          return false;
3274      }
3275  
3276      return $datetime->setTimezone( $wp_timezone );
3277  }
3278  
3279  /**
3280   * Retrieves post published or modified time as a Unix timestamp.
3281   *
3282   * Note that this function returns a true Unix timestamp, not summed with timezone offset
3283   * like older WP functions.
3284   *
3285   * @since 5.3.0
3286   *
3287   * @param int|WP_Post|null $post  Optional. Post ID or post object. Default is global `$post` object.
3288   * @param string           $field Optional. Published or modified time to use from database. Accepts 'date' or 'modified'.
3289   *                                Default 'date'.
3290   * @return int|false Unix timestamp on success, false on failure.
3291   */
3292  function get_post_timestamp( $post = null, $field = 'date' ) {
3293      $datetime = get_post_datetime( $post, $field );
3294  
3295      if ( false === $datetime ) {
3296          return false;
3297      }
3298  
3299      return $datetime->getTimestamp();
3300  }
3301  
3302  /**
3303   * Displays the time at which the post was last modified.
3304   *
3305   * @since 2.0.0
3306   *
3307   * @param string $format Optional. Format to use for retrieving the time the post
3308   *                       was modified. Accepts 'G', 'U', or PHP date format.
3309   *                       Defaults to the 'time_format' option.
3310   */
3311  function the_modified_time( $format = '' ) {
3312      /**
3313       * Filters the localized time a post was last modified, for display.
3314       *
3315       * @since 2.0.0
3316       *
3317       * @param string|false $get_the_modified_time The formatted time or false if no post is found.
3318       * @param string       $format                Format to use for retrieving the time the post
3319       *                                            was modified. Accepts 'G', 'U', or PHP date format.
3320       */
3321      echo apply_filters( 'the_modified_time', get_the_modified_time( $format ), $format );
3322  }
3323  
3324  /**
3325   * Retrieves the time at which the post was last modified.
3326   *
3327   * @since 2.0.0
3328   * @since 4.6.0 Added the `$post` parameter.
3329   *
3330   * @param string           $format Optional. Format to use for retrieving the time the post
3331   *                                 was modified. Accepts 'G', 'U', or PHP date format.
3332   *                                 Defaults to the 'time_format' option.
3333   * @param int|WP_Post|null $post   Optional. Post ID or WP_Post object. Default current post.
3334   * @return string|int|false Formatted date string or Unix timestamp. False on failure.
3335   *
3336   * @phpstan-return ( $format is 'U'|'G' ? int|false : string|false )
3337   */
3338  function get_the_modified_time( $format = '', $post = null ) {
3339      $post = get_post( $post );
3340  
3341      if ( ! $post ) {
3342          // For backward compatibility, failures go through the filter below.
3343          $the_time = false;
3344      } else {
3345          $_format = ! empty( $format ) ? $format : get_option( 'time_format' );
3346  
3347          $the_time = get_post_modified_time( $_format, false, $post, true );
3348      }
3349  
3350      /**
3351       * Filters the localized time a post was last modified.
3352       *
3353       * @since 2.0.0
3354       * @since 4.6.0 Added the `$post` parameter.
3355       *
3356       * @param string|int|false $the_time The formatted time or false if no post is found.
3357       * @param string           $format   Format to use for retrieving the time the post
3358       *                                   was modified. Accepts 'G', 'U', or PHP date format.
3359       * @param WP_Post|null     $post     WP_Post object or null if no post is found.
3360       */
3361      return apply_filters( 'get_the_modified_time', $the_time, $format, $post );
3362  }
3363  
3364  /**
3365   * Retrieves the time at which the post was last modified.
3366   *
3367   * @since 2.0.0
3368   *
3369   * @param string           $format    Optional. Format to use for retrieving the time the post
3370   *                                    was modified. Accepts 'G', 'U', or PHP date format. Default 'U'.
3371   * @param bool             $gmt       Optional. Whether to retrieve the GMT time. Default false.
3372   * @param int|WP_Post|null $post      Post ID or post object. Default is global `$post` object.
3373   * @param bool             $translate Whether to translate the time string. Default false.
3374   * @return string|int|false Formatted date string or Unix timestamp if `$format` is 'U' or 'G'.
3375   *                          False on failure.
3376   *
3377   * @phpstan-return ( $format is 'U'|'G' ? int|false : string|false )
3378   */
3379  function get_post_modified_time( $format = 'U', $gmt = false, $post = null, $translate = false ) {
3380      $post = get_post( $post );
3381  
3382      if ( ! $post ) {
3383          return false;
3384      }
3385  
3386      $source   = ( $gmt ) ? 'gmt' : 'local';
3387      $datetime = get_post_datetime( $post, 'modified', $source );
3388  
3389      if ( false === $datetime ) {
3390          return false;
3391      }
3392  
3393      if ( 'U' === $format || 'G' === $format ) {
3394          $time = $datetime->getTimestamp();
3395  
3396          // Returns a sum of timestamp with timezone offset. Ideally should never be used.
3397          if ( ! $gmt ) {
3398              $time += $datetime->getOffset();
3399          }
3400      } elseif ( $translate ) {
3401          $time = wp_date( $format, $datetime->getTimestamp(), $gmt ? new DateTimeZone( 'UTC' ) : null );
3402      } else {
3403          if ( $gmt ) {
3404              $datetime = $datetime->setTimezone( new DateTimeZone( 'UTC' ) );
3405          }
3406  
3407          $time = $datetime->format( $format );
3408      }
3409  
3410      /**
3411       * Filters the localized time a post was last modified.
3412       *
3413       * @since 2.8.0
3414       *
3415       * @param string|int $time   Formatted date string or Unix timestamp if `$format` is 'U' or 'G'.
3416       * @param string     $format Format to use for retrieving the time the post was modified.
3417       *                           Accepts 'G', 'U', or PHP date format. Default 'U'.
3418       * @param bool       $gmt    Whether to retrieve the GMT time. Default false.
3419       */
3420      return apply_filters( 'get_post_modified_time', $time, $format, $gmt );
3421  }
3422  
3423  /**
3424   * Displays the localized weekday for the post.
3425   *
3426   * @since 0.71
3427   *
3428   * @global WP_Locale $wp_locale WordPress date and time locale object.
3429   */
3430  function the_weekday() {
3431      global $wp_locale;
3432  
3433      $post = get_post();
3434  
3435      if ( ! $post ) {
3436          return;
3437      }
3438  
3439      $the_weekday = $wp_locale->get_weekday( get_post_time( 'w', false, $post ) );
3440  
3441      /**
3442       * Filters the localized weekday of the post, for display.
3443       *
3444       * @since 0.71
3445       *
3446       * @param string $the_weekday
3447       */
3448      echo apply_filters( 'the_weekday', $the_weekday );
3449  }
3450  
3451  /**
3452   * Displays the localized weekday for the post.
3453   *
3454   * Will only output the weekday if the current post's weekday is different from
3455   * the previous one output.
3456   *
3457   * @since 0.71
3458   *
3459   * @global WP_Locale $wp_locale       WordPress date and time locale object.
3460   * @global string    $currentday      The day of the current post in the loop.
3461   * @global string    $previousweekday The day of the previous post in the loop.
3462   *
3463   * @param string $before Optional. Output before the date. Default empty.
3464   * @param string $after  Optional. Output after the date. Default empty.
3465   */
3466  function the_weekday_date( $before = '', $after = '' ) {
3467      global $wp_locale, $currentday, $previousweekday;
3468  
3469      $post = get_post();
3470  
3471      if ( ! $post ) {
3472          return;
3473      }
3474  
3475      $the_weekday_date = '';
3476  
3477      if ( $currentday !== $previousweekday ) {
3478          $the_weekday_date .= $before;
3479          $the_weekday_date .= $wp_locale->get_weekday( get_post_time( 'w', false, $post ) );
3480          $the_weekday_date .= $after;
3481          $previousweekday   = $currentday;
3482      }
3483  
3484      /**
3485       * Filters the localized weekday of the post, for display.
3486       *
3487       * @since 0.71
3488       *
3489       * @param string $the_weekday_date The weekday on which the post was written.
3490       * @param string $before           The HTML to output before the date.
3491       * @param string $after            The HTML to output after the date.
3492       */
3493      echo apply_filters( 'the_weekday_date', $the_weekday_date, $before, $after );
3494  }
3495  
3496  /**
3497   * Fires the wp_head action.
3498   *
3499   * See {@see 'wp_head'}.
3500   *
3501   * @since 1.2.0
3502   */
3503  function wp_head() {
3504      /**
3505       * Prints scripts or data in the head tag on the front end.
3506       *
3507       * @since 1.5.0
3508       */
3509      do_action( 'wp_head' );
3510  }
3511  
3512  /**
3513   * Fires the wp_footer action.
3514   *
3515   * See {@see 'wp_footer'}.
3516   *
3517   * @since 1.5.1
3518   */
3519  function wp_footer() {
3520      /**
3521       * Prints scripts or data before the closing body tag on the front end.
3522       *
3523       * @since 1.5.1
3524       */
3525      do_action( 'wp_footer' );
3526  }
3527  
3528  /**
3529   * Fires the wp_body_open action.
3530   *
3531   * See {@see 'wp_body_open'}.
3532   *
3533   * @since 5.2.0
3534   */
3535  function wp_body_open() {
3536      /**
3537       * Triggered after the opening body tag.
3538       *
3539       * @since 5.2.0
3540       */
3541      do_action( 'wp_body_open' );
3542  }
3543  
3544  /**
3545   * Displays the links to the general feeds.
3546   *
3547   * @since 2.8.0
3548   *
3549   * @param array $args Optional arguments.
3550   */
3551  function feed_links( $args = array() ) {
3552      if ( ! current_theme_supports( 'automatic-feed-links' ) ) {
3553          return;
3554      }
3555  
3556      $defaults = array(
3557          /* translators: Separator between site name and feed type in feed links. */
3558          'separator' => _x( '&raquo;', 'feed link' ),
3559          /* translators: 1: Site title, 2: Separator (raquo). */
3560          'feedtitle' => __( '%1$s %2$s Feed' ),
3561          /* translators: 1: Site title, 2: Separator (raquo). */
3562          'comstitle' => __( '%1$s %2$s Comments Feed' ),
3563      );
3564  
3565      $args = wp_parse_args( $args, $defaults );
3566  
3567      /**
3568       * Filters the feed links arguments.
3569       *
3570       * @since 6.7.0
3571       *
3572       * @param array $args An array of feed links arguments.
3573       */
3574      $args = apply_filters( 'feed_links_args', $args );
3575  
3576      /**
3577       * Filters whether to display the posts feed link.
3578       *
3579       * @since 4.4.0
3580       *
3581       * @param bool $show Whether to display the posts feed link. Default true.
3582       */
3583      if ( apply_filters( 'feed_links_show_posts_feed', true ) ) {
3584          printf(
3585              '<link rel="alternate" type="%s" title="%s" href="%s" />' . "\n",
3586              feed_content_type(),
3587              esc_attr( sprintf( $args['feedtitle'], get_bloginfo( 'name' ), $args['separator'] ) ),
3588              esc_url( get_feed_link() )
3589          );
3590      }
3591  
3592      /**
3593       * Filters whether to display the comments feed link.
3594       *
3595       * @since 4.4.0
3596       *
3597       * @param bool $show Whether to display the comments feed link. Default true.
3598       */
3599      if ( apply_filters( 'feed_links_show_comments_feed', true ) ) {
3600          printf(
3601              '<link rel="alternate" type="%s" title="%s" href="%s" />' . "\n",
3602              feed_content_type(),
3603              esc_attr( sprintf( $args['comstitle'], get_bloginfo( 'name' ), $args['separator'] ) ),
3604              esc_url( get_feed_link( 'comments_' . get_default_feed() ) )
3605          );
3606      }
3607  }
3608  
3609  /**
3610   * Displays the links to the extra feeds such as category feeds.
3611   *
3612   * @since 2.8.0
3613   *
3614   * @param array $args Optional arguments.
3615   */
3616  function feed_links_extra( $args = array() ) {
3617      $defaults = array(
3618          /* translators: Separator between site name and feed type in feed links. */
3619          'separator'     => _x( '&raquo;', 'feed link' ),
3620          /* translators: 1: Site name, 2: Separator (raquo), 3: Post title. */
3621          'singletitle'   => __( '%1$s %2$s %3$s Comments Feed' ),
3622          /* translators: 1: Site name, 2: Separator (raquo), 3: Category name. */
3623          'cattitle'      => __( '%1$s %2$s %3$s Category Feed' ),
3624          /* translators: 1: Site name, 2: Separator (raquo), 3: Tag name. */
3625          'tagtitle'      => __( '%1$s %2$s %3$s Tag Feed' ),
3626          /* translators: 1: Site name, 2: Separator (raquo), 3: Term name, 4: Taxonomy singular name. */
3627          'taxtitle'      => __( '%1$s %2$s %3$s %4$s Feed' ),
3628          /* translators: 1: Site name, 2: Separator (raquo), 3: Author name. */
3629          'authortitle'   => __( '%1$s %2$s Posts by %3$s Feed' ),
3630          /* translators: 1: Site name, 2: Separator (raquo), 3: Search query. */
3631          'searchtitle'   => __( '%1$s %2$s Search Results for &#8220;%3$s&#8221; Feed' ),
3632          /* translators: 1: Site name, 2: Separator (raquo), 3: Post type name. */
3633          'posttypetitle' => __( '%1$s %2$s %3$s Feed' ),
3634      );
3635  
3636      $args = wp_parse_args( $args, $defaults );
3637  
3638      /**
3639       * Filters the extra feed links arguments.
3640       *
3641       * @since 6.7.0
3642       *
3643       * @param array $args An array of extra feed links arguments.
3644       */
3645      $args = apply_filters( 'feed_links_extra_args', $args );
3646  
3647      /*
3648       * The template conditionals are referring to the global query, so the queried object is used rather than
3649       * depending on a global $post being set.
3650       */
3651      $queried_object = get_queried_object();
3652      if ( is_singular() && $queried_object instanceof WP_Post ) {
3653          $post = $queried_object;
3654  
3655          /** This filter is documented in wp-includes/general-template.php */
3656          $show_comments_feed = apply_filters( 'feed_links_show_comments_feed', true );
3657  
3658          /**
3659           * Filters whether to display the post comments feed link.
3660           *
3661           * This filter allows to enable or disable the feed link for a singular post
3662           * in a way that is independent of {@see 'feed_links_show_comments_feed'}
3663           * (which controls the global comments feed). The result of that filter
3664           * is accepted as a parameter.
3665           *
3666           * @since 6.1.0
3667           *
3668           * @param bool $show_comments_feed Whether to display the post comments feed link. Defaults to
3669           *                                 the {@see 'feed_links_show_comments_feed'} filter result.
3670           */
3671          $show_post_comments_feed = apply_filters( 'feed_links_extra_show_post_comments_feed', $show_comments_feed );
3672  
3673          if ( $show_post_comments_feed && ( comments_open( $post ) || pings_open( $post ) || (int) $post->comment_count > 0 ) ) {
3674              $title = sprintf(
3675                  $args['singletitle'],
3676                  get_bloginfo( 'name' ),
3677                  $args['separator'],
3678                  the_title_attribute(
3679                      array(
3680                          'echo' => false,
3681                          'post' => $post,
3682                      )
3683                  )
3684              );
3685  
3686              $feed_link = get_post_comments_feed_link( $post->ID );
3687  
3688              if ( $feed_link ) {
3689                  $href = $feed_link;
3690              }
3691          }
3692      } elseif ( is_post_type_archive() ) {
3693          /**
3694           * Filters whether to display the post type archive feed link.
3695           *
3696           * @since 6.1.0
3697           *
3698           * @param bool $show Whether to display the post type archive feed link. Default true.
3699           */
3700          $show_post_type_archive_feed = apply_filters( 'feed_links_extra_show_post_type_archive_feed', true );
3701  
3702          if ( $show_post_type_archive_feed ) {
3703              $post_type = get_query_var( 'post_type' );
3704  
3705              if ( is_array( $post_type ) ) {
3706                  $post_type = reset( $post_type );
3707              }
3708  
3709              $post_type_obj = get_post_type_object( $post_type );
3710  
3711              $title = sprintf(
3712                  $args['posttypetitle'],
3713                  get_bloginfo( 'name' ),
3714                  $args['separator'],
3715                  $post_type_obj->labels->name
3716              );
3717  
3718              $href = get_post_type_archive_feed_link( $post_type_obj->name );
3719          }
3720      } elseif ( is_category() ) {
3721          /**
3722           * Filters whether to display the category feed link.
3723           *
3724           * @since 6.1.0
3725           *
3726           * @param bool $show Whether to display the category feed link. Default true.
3727           */
3728          $show_category_feed = apply_filters( 'feed_links_extra_show_category_feed', true );
3729  
3730          if ( $show_category_feed ) {
3731              $term = get_queried_object();
3732  
3733              if ( $term ) {
3734                  $title = sprintf(
3735                      $args['cattitle'],
3736                      get_bloginfo( 'name' ),
3737                      $args['separator'],
3738                      $term->name
3739                  );
3740  
3741                  $href = get_category_feed_link( $term->term_id );
3742              }
3743          }
3744      } elseif ( is_tag() ) {
3745          /**
3746           * Filters whether to display the tag feed link.
3747           *
3748           * @since 6.1.0
3749           *
3750           * @param bool $show Whether to display the tag feed link. Default true.
3751           */
3752          $show_tag_feed = apply_filters( 'feed_links_extra_show_tag_feed', true );
3753  
3754          if ( $show_tag_feed ) {
3755              $term = get_queried_object();
3756  
3757              if ( $term ) {
3758                  $title = sprintf(
3759                      $args['tagtitle'],
3760                      get_bloginfo( 'name' ),
3761                      $args['separator'],
3762                      $term->name
3763                  );
3764  
3765                  $href = get_tag_feed_link( $term->term_id );
3766              }
3767          }
3768      } elseif ( is_tax() ) {
3769          /**
3770           * Filters whether to display the custom taxonomy feed link.
3771           *
3772           * @since 6.1.0
3773           *
3774           * @param bool $show Whether to display the custom taxonomy feed link. Default true.
3775           */
3776          $show_tax_feed = apply_filters( 'feed_links_extra_show_tax_feed', true );
3777  
3778          if ( $show_tax_feed ) {
3779              $term = get_queried_object();
3780  
3781              if ( $term ) {
3782                  $tax = get_taxonomy( $term->taxonomy );
3783  
3784                  $title = sprintf(
3785                      $args['taxtitle'],
3786                      get_bloginfo( 'name' ),
3787                      $args['separator'],
3788                      $term->name,
3789                      $tax->labels->singular_name
3790                  );
3791  
3792                  $href = get_term_feed_link( $term->term_id, $term->taxonomy );
3793              }
3794          }
3795      } elseif ( is_author() ) {
3796          /**
3797           * Filters whether to display the author feed link.
3798           *
3799           * @since 6.1.0
3800           *
3801           * @param bool $show Whether to display the author feed link. Default true.
3802           */
3803          $show_author_feed = apply_filters( 'feed_links_extra_show_author_feed', true );
3804  
3805          if ( $show_author_feed ) {
3806              $author_id = (int) get_query_var( 'author' );
3807  
3808              $title = sprintf(
3809                  $args['authortitle'],
3810                  get_bloginfo( 'name' ),
3811                  $args['separator'],
3812                  get_the_author_meta( 'display_name', $author_id )
3813              );
3814  
3815              $href = get_author_feed_link( $author_id );
3816          }
3817      } elseif ( is_search() ) {
3818          /**
3819           * Filters whether to display the search results feed link.
3820           *
3821           * @since 6.1.0
3822           *
3823           * @param bool $show Whether to display the search results feed link. Default true.
3824           */
3825          $show_search_feed = apply_filters( 'feed_links_extra_show_search_feed', true );
3826  
3827          if ( $show_search_feed ) {
3828              $title = sprintf(
3829                  $args['searchtitle'],
3830                  get_bloginfo( 'name' ),
3831                  $args['separator'],
3832                  get_search_query( false )
3833              );
3834  
3835              $href = get_search_feed_link();
3836          }
3837      }
3838  
3839      if ( isset( $title ) && isset( $href ) ) {
3840          printf(
3841              '<link rel="alternate" type="%s" title="%s" href="%s" />' . "\n",
3842              feed_content_type(),
3843              esc_attr( $title ),
3844              esc_url( $href )
3845          );
3846      }
3847  }
3848  
3849  /**
3850   * Displays the link to the Really Simple Discovery service endpoint.
3851   *
3852   * @link http://archipelago.phrasewise.com/rsd
3853   * @since 2.0.0
3854   */
3855  function rsd_link() {
3856      printf(
3857          '<link rel="EditURI" type="application/rsd+xml" title="RSD" href="%s" />' . "\n",
3858          esc_url( site_url( 'xmlrpc.php?rsd', 'rpc' ) )
3859      );
3860  }
3861  
3862  /**
3863   * Displays a referrer `strict-origin-when-cross-origin` meta tag.
3864   *
3865   * Outputs a referrer `strict-origin-when-cross-origin` meta tag that tells the browser not to send
3866   * the full URL as a referrer to other sites when cross-origin assets are loaded.
3867   *
3868   * Typical usage is as a {@see 'wp_head'} callback:
3869   *
3870   *     add_action( 'wp_head', 'wp_strict_cross_origin_referrer' );
3871   *
3872   * @since 5.7.0
3873   */
3874  function wp_strict_cross_origin_referrer() {
3875      ?>
3876      <meta name='referrer' content='strict-origin-when-cross-origin' />
3877      <?php
3878  }
3879  
3880  /**
3881   * Displays site icon meta tags.
3882   *
3883   * @since 4.3.0
3884   *
3885   * @link https://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#rel-icon HTML5 specification link icon.
3886   */
3887  function wp_site_icon() {
3888      if ( ! has_site_icon() && ! is_customize_preview() ) {
3889          return;
3890      }
3891  
3892      $meta_tags = array();
3893      $icon_32   = get_site_icon_url( 32 );
3894      if ( empty( $icon_32 ) && is_customize_preview() ) {
3895          $icon_32 = '/favicon.ico'; // Serve default favicon URL in customizer so element can be updated for preview.
3896      }
3897      if ( $icon_32 ) {
3898          $meta_tags[] = sprintf( '<link rel="icon" href="%s" sizes="32x32" />', esc_url( $icon_32 ) );
3899      }
3900      $icon_192 = get_site_icon_url( 192 );
3901      if ( $icon_192 ) {
3902          $meta_tags[] = sprintf( '<link rel="icon" href="%s" sizes="192x192" />', esc_url( $icon_192 ) );
3903      }
3904      $icon_180 = get_site_icon_url( 180 );
3905      if ( $icon_180 ) {
3906          $meta_tags[] = sprintf( '<link rel="apple-touch-icon" href="%s" />', esc_url( $icon_180 ) );
3907      }
3908      $icon_270 = get_site_icon_url( 270 );
3909      if ( $icon_270 ) {
3910          $meta_tags[] = sprintf( '<meta name="msapplication-TileImage" content="%s" />', esc_url( $icon_270 ) );
3911      }
3912  
3913      /**
3914       * Filters the site icon meta tags, so plugins can add their own.
3915       *
3916       * @since 4.3.0
3917       *
3918       * @param string[] $meta_tags Array of Site Icon meta tags.
3919       */
3920      $meta_tags = apply_filters( 'site_icon_meta_tags', $meta_tags );
3921      $meta_tags = array_filter( $meta_tags );
3922  
3923      foreach ( $meta_tags as $meta_tag ) {
3924          echo "$meta_tag\n";
3925      }
3926  }
3927  
3928  /**
3929   * Prints resource hints to browsers for pre-fetching, pre-rendering
3930   * and pre-connecting to websites.
3931   *
3932   * Gives hints to browsers to prefetch specific pages or render them
3933   * in the background, to perform DNS lookups or to begin the connection
3934   * handshake (DNS, TCP, TLS) in the background.
3935   *
3936   * These performance improving indicators work by using `<link rel"…">`.
3937   *
3938   * @since 4.6.0
3939   */
3940  function wp_resource_hints() {
3941      $hints = array(
3942          'dns-prefetch' => wp_dependencies_unique_hosts(),
3943          'preconnect'   => array(),
3944          'prefetch'     => array(),
3945          'prerender'    => array(),
3946      );
3947  
3948      foreach ( $hints as $relation_type => $urls ) {
3949          $unique_urls = array();
3950  
3951          /**
3952           * Filters domains and URLs for resource hints of the given relation type.
3953           *
3954           * @since 4.6.0
3955           * @since 4.7.0 The `$urls` parameter accepts arrays of specific HTML attributes
3956           *              as its child elements.
3957           *
3958           * @param array  $urls {
3959           *     Array of resources and their attributes, or URLs to print for resource hints.
3960           *
3961           *     @type array|string ...$0 {
3962           *         Array of resource attributes, or a URL string.
3963           *
3964           *         @type string $href        URL to include in resource hints. Required.
3965           *         @type string $as          How the browser should treat the resource
3966           *                                   (`script`, `style`, `image`, `document`, etc).
3967           *         @type string $crossorigin Indicates the CORS policy of the specified resource.
3968           *         @type float  $pr          Expected probability that the resource hint will be used.
3969           *         @type string $type        Type of the resource (`text/html`, `text/css`, etc).
3970           *     }
3971           * }
3972           * @param string $relation_type The relation type the URLs are printed for. One of
3973           *                              'dns-prefetch', 'preconnect', 'prefetch', or 'prerender'.
3974           */
3975          $urls = apply_filters( 'wp_resource_hints', $urls, $relation_type );
3976  
3977          foreach ( $urls as $key => $url ) {
3978              $atts = array();
3979  
3980              if ( is_array( $url ) ) {
3981                  if ( isset( $url['href'] ) ) {
3982                      $atts = $url;
3983                      $url  = $url['href'];
3984                  } else {
3985                      continue;
3986                  }
3987              }
3988  
3989              $url = esc_url( $url, array( 'http', 'https' ) );
3990  
3991              if ( ! $url ) {
3992                  continue;
3993              }
3994  
3995              if ( isset( $unique_urls[ $url ] ) ) {
3996                  continue;
3997              }
3998  
3999              if ( in_array( $relation_type, array( 'preconnect', 'dns-prefetch' ), true ) ) {
4000                  $parsed = wp_parse_url( $url );
4001  
4002                  if ( empty( $parsed['host'] ) ) {
4003                      continue;
4004                  }
4005  
4006                  if ( 'preconnect' === $relation_type && ! empty( $parsed['scheme'] ) ) {
4007                      $url = $parsed['scheme'] . '://' . $parsed['host'];
4008                  } else {
4009                      // Use protocol-relative URLs for dns-prefetch or if scheme is missing.
4010                      $url = '//' . $parsed['host'];
4011                  }
4012              }
4013  
4014              $atts['rel']  = $relation_type;
4015              $atts['href'] = $url;
4016  
4017              $unique_urls[ $url ] = $atts;
4018          }
4019  
4020          foreach ( $unique_urls as $atts ) {
4021              $html = '';
4022  
4023              foreach ( $atts as $attr => $value ) {
4024                  if ( ! is_scalar( $value )
4025                      || ( ! in_array( $attr, array( 'as', 'crossorigin', 'href', 'pr', 'rel', 'type' ), true ) && ! is_numeric( $attr ) )
4026                  ) {
4027  
4028                      continue;
4029                  }
4030  
4031                  $value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );
4032  
4033                  if ( ! is_string( $attr ) ) {
4034                      $html .= " $value";
4035                  } else {
4036                      $html .= " $attr='$value'";
4037                  }
4038              }
4039  
4040              $html = trim( $html );
4041  
4042              echo "<link $html />\n";
4043          }
4044      }
4045  }
4046  
4047  /**
4048   * Prints resource preloads directives to browsers.
4049   *
4050   * Gives directive to browsers to preload specific resources that website will
4051   * need very soon, this ensures that they are available earlier and are less
4052   * likely to block the page's render. Preload directives should not be used for
4053   * non-render-blocking elements, as then they would compete with the
4054   * render-blocking ones, slowing down the render.
4055   *
4056   * These performance improving indicators work by using `<link rel="preload">`.
4057   *
4058   * @link https://developer.mozilla.org/en-US/docs/Web/HTML/Link_types/preload
4059   * @link https://web.dev/preload-responsive-images/
4060   *
4061   * @since 6.1.0
4062   */
4063  function wp_preload_resources() {
4064      /**
4065       * Filters domains and URLs for resource preloads.
4066       *
4067       * @since 6.1.0
4068       * @since 6.6.0 Added the `$fetchpriority` attribute.
4069       *
4070       * @param array  $preload_resources {
4071       *     Array of resources and their attributes, or URLs to print for resource preloads.
4072       *
4073       *     @type array ...$0 {
4074       *         Array of resource attributes.
4075       *
4076       *         @type string $href          URL to include in resource preloads. Required.
4077       *         @type string $as            How the browser should treat the resource
4078       *                                     (`script`, `style`, `image`, `document`, etc).
4079       *         @type string $crossorigin   Indicates the CORS policy of the specified resource.
4080       *         @type string $type          Type of the resource (`text/html`, `text/css`, etc).
4081       *         @type string $media         Accepts media types or media queries. Allows responsive preloading.
4082       *         @type string $imagesizes    Responsive source size to the source Set.
4083       *         @type string $imagesrcset   Responsive image sources to the source set.
4084       *         @type string $fetchpriority Fetchpriority value for the resource.
4085       *     }
4086       * }
4087       */
4088      $preload_resources = apply_filters( 'wp_preload_resources', array() );
4089  
4090      if ( ! is_array( $preload_resources ) ) {
4091          return;
4092      }
4093  
4094      $unique_resources = array();
4095  
4096      // Parse the complete resource list and extract unique resources.
4097      foreach ( $preload_resources as $resource ) {
4098          if ( ! is_array( $resource ) ) {
4099              continue;
4100          }
4101  
4102          $attributes = $resource;
4103          if ( isset( $resource['href'] ) ) {
4104              $href = $resource['href'];
4105              if ( isset( $unique_resources[ $href ] ) ) {
4106                  continue;
4107              }
4108              $unique_resources[ $href ] = $attributes;
4109              // Media can use imagesrcset and not href.
4110          } elseif ( ( 'image' === $resource['as'] ) &&
4111              ( isset( $resource['imagesrcset'] ) || isset( $resource['imagesizes'] ) )
4112          ) {
4113              if ( isset( $unique_resources[ $resource['imagesrcset'] ] ) ) {
4114                  continue;
4115              }
4116              $unique_resources[ $resource['imagesrcset'] ] = $attributes;
4117          } else {
4118              continue;
4119          }
4120      }
4121  
4122      // Build and output the HTML for each unique resource.
4123      foreach ( $unique_resources as $unique_resource ) {
4124          $html = '';
4125  
4126          foreach ( $unique_resource as $resource_key => $resource_value ) {
4127              if ( ! is_scalar( $resource_value ) ) {
4128                  continue;
4129              }
4130  
4131              // Ignore non-supported attributes.
4132              $non_supported_attributes = array( 'as', 'crossorigin', 'href', 'imagesrcset', 'imagesizes', 'type', 'media', 'fetchpriority' );
4133              if ( ! in_array( $resource_key, $non_supported_attributes, true ) && ! is_numeric( $resource_key ) ) {
4134                  continue;
4135              }
4136  
4137              // imagesrcset only usable when preloading image, ignore otherwise.
4138              if ( ( 'imagesrcset' === $resource_key ) && ( ! isset( $unique_resource['as'] ) || ( 'image' !== $unique_resource['as'] ) ) ) {
4139                  continue;
4140              }
4141  
4142              // imagesizes only usable when preloading image and imagesrcset present, ignore otherwise.
4143              if ( ( 'imagesizes' === $resource_key ) &&
4144                  ( ! isset( $unique_resource['as'] ) || ( 'image' !== $unique_resource['as'] ) || ! isset( $unique_resource['imagesrcset'] ) )
4145              ) {
4146                  continue;
4147              }
4148  
4149              $resource_value = ( 'href' === $resource_key ) ? esc_url( $resource_value, array( 'http', 'https' ) ) : esc_attr( $resource_value );
4150  
4151              if ( ! is_string( $resource_key ) ) {
4152                  $html .= " $resource_value";
4153              } else {
4154                  $html .= " $resource_key='$resource_value'";
4155              }
4156          }
4157          $html = trim( $html );
4158  
4159          printf( "<link rel='preload' %s />\n", $html );
4160      }
4161  }
4162  
4163  /**
4164   * Retrieves a list of unique hosts of all enqueued scripts and styles.
4165   *
4166   * @since 4.6.0
4167   *
4168   * @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts.
4169   * @global WP_Styles  $wp_styles  The WP_Styles object for printing styles.
4170   *
4171   * @return string[] A list of unique hosts of enqueued scripts and styles.
4172   */
4173  function wp_dependencies_unique_hosts() {
4174      global $wp_scripts, $wp_styles;
4175  
4176      $unique_hosts = array();
4177  
4178      foreach ( array( $wp_scripts, $wp_styles ) as $dependencies ) {
4179          if ( $dependencies instanceof WP_Dependencies && ! empty( $dependencies->queue ) ) {
4180              foreach ( $dependencies->queue as $handle ) {
4181                  if ( ! isset( $dependencies->registered[ $handle ] ) ) {
4182                      continue;
4183                  }
4184  
4185                  /* @var _WP_Dependency $dependency */
4186                  $dependency = $dependencies->registered[ $handle ];
4187                  $parsed     = wp_parse_url( $dependency->src );
4188  
4189                  if ( ! empty( $parsed['host'] )
4190                      && ! in_array( $parsed['host'], $unique_hosts, true ) && $parsed['host'] !== $_SERVER['SERVER_NAME']
4191                  ) {
4192                      $unique_hosts[] = $parsed['host'];
4193                  }
4194              }
4195          }
4196      }
4197  
4198      return $unique_hosts;
4199  }
4200  
4201  /**
4202   * Determines whether the user can access the visual editor.
4203   *
4204   * Checks if the user can access the visual editor and that it's supported by the user's browser.
4205   *
4206   * @since 2.0.0
4207   *
4208   * @global bool $wp_rich_edit Whether the user can access the visual editor.
4209   * @global bool $is_gecko     Whether the browser is Gecko-based.
4210   * @global bool $is_opera     Whether the browser is Opera.
4211   * @global bool $is_safari    Whether the browser is Safari.
4212   * @global bool $is_chrome    Whether the browser is Chrome.
4213   * @global bool $is_IE        Whether the browser is Internet Explorer.
4214   * @global bool $is_edge      Whether the browser is Microsoft Edge.
4215   *
4216   * @return bool True if the user can access the visual editor, false otherwise.
4217   */
4218  function user_can_richedit() {
4219      global $wp_rich_edit, $is_gecko, $is_opera, $is_safari, $is_chrome, $is_IE, $is_edge;
4220  
4221      if ( ! isset( $wp_rich_edit ) ) {
4222          $wp_rich_edit = false;
4223  
4224          if ( 'true' === get_user_option( 'rich_editing' ) || ! is_user_logged_in() ) { // Default to 'true' for logged out users.
4225              if ( $is_safari ) {
4226                  $wp_rich_edit = ! wp_is_mobile() || ( preg_match( '!AppleWebKit/(\d+)!', $_SERVER['HTTP_USER_AGENT'], $match ) && (int) $match[1] >= 534 );
4227              } elseif ( $is_IE ) {
4228                  $wp_rich_edit = str_contains( $_SERVER['HTTP_USER_AGENT'], 'Trident/7.0;' );
4229              } elseif ( $is_gecko || $is_chrome || $is_edge || ( $is_opera && ! wp_is_mobile() ) ) {
4230                  $wp_rich_edit = true;
4231              }
4232          }
4233      }
4234  
4235      /**
4236       * Filters whether the user can access the visual editor.
4237       *
4238       * @since 2.1.0
4239       *
4240       * @param bool $wp_rich_edit Whether the user can access the visual editor.
4241       */
4242      return apply_filters( 'user_can_richedit', $wp_rich_edit );
4243  }
4244  
4245  /**
4246   * Finds out which editor should be displayed by default.
4247   *
4248   * Works out which of the editors to display as the current editor for a
4249   * user. The 'html' setting is for the "Code" editor tab.
4250   *
4251   * @since 2.5.0
4252   *
4253   * @return string Either 'tinymce', 'html', or 'test'
4254   */
4255  function wp_default_editor() {
4256      $r = user_can_richedit() ? 'tinymce' : 'html'; // Defaults.
4257      if ( wp_get_current_user() ) { // Look for cookie.
4258          $ed = get_user_setting( 'editor', 'tinymce' );
4259          $r  = ( in_array( $ed, array( 'tinymce', 'html', 'test' ), true ) ) ? $ed : $r;
4260      }
4261  
4262      /**
4263       * Filters which editor should be displayed by default.
4264       *
4265       * @since 2.5.0
4266       *
4267       * @param string $r Which editor should be displayed by default. Either 'tinymce', 'html', or 'test'.
4268       */
4269      return apply_filters( 'wp_default_editor', $r );
4270  }
4271  
4272  /**
4273   * Renders an editor.
4274   *
4275   * Using this function is the proper way to output all needed components for both TinyMCE and Quicktags.
4276   * _WP_Editors should not be used directly. See https://core.trac.wordpress.org/ticket/17144.
4277   *
4278   * NOTE: Once initialized the TinyMCE editor cannot be safely moved in the DOM. For that reason
4279   * running wp_editor() inside of a meta box is not a good idea unless only Quicktags is used.
4280   * On the post edit screen several actions can be used to include additional editors
4281   * containing TinyMCE: 'edit_page_form', 'edit_form_advanced' and 'dbx_post_sidebar'.
4282   * See https://core.trac.wordpress.org/ticket/19173 for more information.
4283   *
4284   * @see _WP_Editors::editor()
4285   * @see _WP_Editors::parse_settings()
4286   * @since 3.3.0
4287   *
4288   * @param string $content   Initial content for the editor.
4289   * @param string $editor_id HTML ID attribute value for the textarea and TinyMCE.
4290   *                          Should not contain square brackets.
4291   * @param array  $settings  See _WP_Editors::parse_settings() for description.
4292   */
4293  function wp_editor( $content, $editor_id, $settings = array() ) {
4294      if ( ! class_exists( '_WP_Editors', false ) ) {
4295          require  ABSPATH . WPINC . '/class-wp-editor.php';
4296      }
4297      _WP_Editors::editor( $content, $editor_id, $settings );
4298  }
4299  
4300  /**
4301   * Outputs the editor scripts, stylesheets, and default settings.
4302   *
4303   * The editor can be initialized when needed after page load.
4304   * See wp.editor.initialize() in wp-admin/js/editor.js for initialization options.
4305   *
4306   * @uses _WP_Editors
4307   * @since 4.8.0
4308   */
4309  function wp_enqueue_editor() {
4310      if ( ! class_exists( '_WP_Editors', false ) ) {
4311          require  ABSPATH . WPINC . '/class-wp-editor.php';
4312      }
4313  
4314      _WP_Editors::enqueue_default_editor();
4315  }
4316  
4317  /**
4318   * Enqueues assets needed by the code editor for the given settings.
4319   *
4320   * @since 4.9.0
4321   *
4322   * @see wp_enqueue_editor()
4323   * @see wp_get_code_editor_settings()
4324   * @see _WP_Editors::parse_settings()
4325   *
4326   * @param array $args {
4327   *     Args.
4328   *
4329   *     @type string   $type       The MIME type of the file to be edited.
4330   *     @type string   $file       Filename to be edited. Extension is used to sniff the type. Can be supplied as alternative to `$type` param.
4331   *     @type WP_Theme $theme      Theme being edited when on the theme file editor.
4332   *     @type string   $plugin     Plugin being edited when on the plugin file editor.
4333   *     @type array    $codemirror Additional CodeMirror setting overrides.
4334   *     @type array    $csslint    CSSLint rule overrides.
4335   *     @type array    $jshint     JSHint rule overrides.
4336   *     @type array    $htmlhint   HTMLHint rule overrides.
4337   * }
4338   * @return array|false Settings for the enqueued code editor, or false if the editor was not enqueued.
4339   */
4340  function wp_enqueue_code_editor( $args ) {
4341      if ( is_user_logged_in() && 'false' === wp_get_current_user()->syntax_highlighting ) {
4342          return false;
4343      }
4344  
4345      $settings = wp_get_code_editor_settings( $args );
4346  
4347      if ( empty( $settings ) || empty( $settings['codemirror'] ) ) {
4348          return false;
4349      }
4350  
4351      wp_enqueue_script( 'code-editor' );
4352      wp_enqueue_style( 'code-editor' );
4353  
4354      if ( isset( $settings['codemirror']['mode'] ) ) {
4355          $mode = $settings['codemirror']['mode'];
4356          if ( is_string( $mode ) ) {
4357              $mode = array(
4358                  'name' => $mode,
4359              );
4360          }
4361  
4362          if ( ! empty( $settings['codemirror']['lint'] ) ) {
4363              switch ( $mode['name'] ) {
4364                  case 'css':
4365                  case 'text/css':
4366                  case 'text/x-scss':
4367                  case 'text/x-less':
4368                      wp_enqueue_script( 'csslint' );
4369                      break;
4370                  case 'htmlmixed':
4371                  case 'text/html':
4372                  case 'php':
4373                  case 'application/x-httpd-php':
4374                  case 'text/x-php':
4375                      wp_enqueue_script( 'htmlhint' );
4376                      wp_enqueue_script( 'csslint' );
4377                      if ( ! current_user_can( 'unfiltered_html' ) ) {
4378                          wp_enqueue_script( 'htmlhint-kses' );
4379                      }
4380                      break;
4381                  case 'javascript':
4382                  case 'application/ecmascript':
4383                  case 'application/json':
4384                  case 'application/javascript':
4385                  case 'application/ld+json':
4386                  case 'text/typescript':
4387                  case 'application/typescript':
4388                      wp_enqueue_script( 'jsonlint' );
4389                      break;
4390              }
4391          }
4392      }
4393  
4394      wp_add_inline_script( 'code-editor', sprintf( 'jQuery.extend( wp.codeEditor.defaultSettings, %s );', wp_json_encode( $settings, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ) ) );
4395  
4396      /**
4397       * Fires when scripts and styles are enqueued for the code editor.
4398       *
4399       * @since 4.9.0
4400       *
4401       * @param array $settings Settings for the enqueued code editor.
4402       */
4403      do_action( 'wp_enqueue_code_editor', $settings );
4404  
4405      return $settings;
4406  }
4407  
4408  /**
4409   * Generates and returns code editor settings.
4410   *
4411   * @since 5.0.0
4412   *
4413   * @see wp_enqueue_code_editor()
4414   *
4415   * @param array $args {
4416   *     Args.
4417   *
4418   *     @type string   $type       The MIME type of the file to be edited.
4419   *     @type string   $file       Filename to be edited. Extension is used to sniff the type. Can be supplied as alternative to `$type` param.
4420   *     @type WP_Theme $theme      Theme being edited when on the theme file editor.
4421   *     @type string   $plugin     Plugin being edited when on the plugin file editor.
4422   *     @type array    $codemirror Additional CodeMirror setting overrides.
4423   *     @type array    $csslint    CSSLint rule overrides.
4424   *     @type array    $jshint     JSHint rule overrides.
4425   *     @type array    $htmlhint   HTMLHint rule overrides.
4426   * }
4427   * @return array|false Settings for the code editor.
4428   */
4429  function wp_get_code_editor_settings( $args ) {
4430      $settings = array(
4431          'codemirror' => array(
4432              'indentUnit'       => 4,
4433              'indentWithTabs'   => true,
4434              'inputStyle'       => 'contenteditable',
4435              'lineNumbers'      => true,
4436              'lineWrapping'     => true,
4437              'styleActiveLine'  => true,
4438              'continueComments' => true,
4439              'extraKeys'        => array(
4440                  'Ctrl-Space' => 'autocomplete',
4441                  'Ctrl-/'     => 'toggleComment',
4442                  'Cmd-/'      => 'toggleComment',
4443                  'Alt-F'      => 'findPersistent',
4444                  'Ctrl-F'     => 'findPersistent',
4445                  'Cmd-F'      => 'findPersistent',
4446              ),
4447              'direction'        => 'ltr', // Code is shown in LTR even in RTL languages.
4448              'gutters'          => array(),
4449          ),
4450          'csslint'    => array(
4451              'errors'                    => true, // Parsing errors.
4452              'box-model'                 => true,
4453              'display-property-grouping' => true,
4454              'duplicate-properties'      => true,
4455              'known-properties'          => true,
4456              'outline-none'              => true,
4457          ),
4458          'jshint'     => array(
4459              'esversion'       => 11,
4460              'module'          => str_ends_with( $args['file'] ?? '', '.mjs' ),
4461  
4462              // This script module URL is intentionally referenced here instead of registering an espree script module
4463              // in wp_default_script_modules(). This is a first stab at a core-only private module.
4464              'espreeModuleUrl' => add_query_arg( 'ver', '9.6.1', includes_url( 'js/codemirror/espree.min.js' ) ),
4465  
4466              // The following JSHint *linting rule* options are copied from
4467              // <https://github.com/WordPress/wordpress-develop/blob/6.9.0/.jshintrc>.
4468              // Parsing-related options such as `esversion` (and, in other contexts, `es5`, `es3`, `module`, `strict`)
4469              // are honored by the Espree-based integration, but these linting-rule options are not interpreted by Espree
4470              // and are kept only for compatibility/documentation with the original JSHint configuration.
4471              'boss'            => true,
4472              'curly'           => true,
4473              'eqeqeq'          => true,
4474              'eqnull'          => true,
4475              'expr'            => true,
4476              'immed'           => true,
4477              'noarg'           => true,
4478              'nonbsp'          => true,
4479              'quotmark'        => 'single',
4480              'undef'           => true,
4481              'unused'          => true,
4482              'browser'         => true,
4483              'globals'         => array(
4484                  '_'                 => false,
4485                  'Backbone'          => false,
4486                  'jQuery'            => false,
4487                  'JSON'              => false,
4488                  'wp'                => false,
4489                  'export'            => false,
4490                  'module'            => false,
4491                  'require'           => false,
4492                  'WorkerGlobalScope' => false,
4493                  'self'              => false,
4494                  'OffscreenCanvas'   => false,
4495                  'Promise'           => false,
4496              ),
4497          ),
4498          'htmlhint'   => array(
4499              'tagname-lowercase'        => true,
4500              'attr-lowercase'           => true,
4501              'attr-value-double-quotes' => false,
4502              'doctype-first'            => false,
4503              'tag-pair'                 => true,
4504              'spec-char-escape'         => true,
4505              'id-unique'                => true,
4506              'src-not-empty'            => true,
4507              'attr-no-duplication'      => true,
4508              'alt-require'              => true,
4509              'space-tab-mixed-disabled' => 'tab',
4510              'attr-unsafe-chars'        => true,
4511          ),
4512      );
4513  
4514      $type = '';
4515      if ( isset( $args['type'] ) ) {
4516          $type = $args['type'];
4517  
4518          // Remap MIME types to ones that CodeMirror modes will recognize.
4519          if ( 'application/x-patch' === $type || 'text/x-patch' === $type ) {
4520              $type = 'text/x-diff';
4521          }
4522      } elseif ( isset( $args['file'] ) && str_contains( basename( $args['file'] ), '.' ) ) {
4523          $extension = strtolower( pathinfo( $args['file'], PATHINFO_EXTENSION ) );
4524          foreach ( wp_get_mime_types() as $exts => $mime ) {
4525              if ( preg_match( '!^(' . $exts . ')$!i', $extension ) ) {
4526                  $type = $mime;
4527                  break;
4528              }
4529          }
4530  
4531          // Supply any types that are not matched by wp_get_mime_types().
4532          if ( empty( $type ) ) {
4533              switch ( $extension ) {
4534                  case 'conf':
4535                      $type = 'text/nginx';
4536                      break;
4537                  case 'css':
4538                      $type = 'text/css';
4539                      break;
4540                  case 'diff':
4541                  case 'patch':
4542                      $type = 'text/x-diff';
4543                      break;
4544                  case 'html':
4545                  case 'htm':
4546                      $type = 'text/html';
4547                      break;
4548                  case 'http':
4549                      $type = 'message/http';
4550                      break;
4551                  case 'js':
4552                  case 'mjs':
4553                      $type = 'text/javascript';
4554                      break;
4555                  case 'json':
4556                      $type = 'application/json';
4557                      break;
4558                  case 'jsx':
4559                      $type = 'text/jsx';
4560                      break;
4561                  case 'less':
4562                      $type = 'text/x-less';
4563                      break;
4564                  case 'md':
4565                      $type = 'text/x-gfm';
4566                      break;
4567                  case 'php':
4568                  case 'phtml':
4569                  case 'php3':
4570                  case 'php4':
4571                  case 'php5':
4572                  case 'php7':
4573                  case 'phps':
4574                      $type = 'application/x-httpd-php';
4575                      break;
4576                  case 'scss':
4577                      $type = 'text/x-scss';
4578                      break;
4579                  case 'sass':
4580                      $type = 'text/x-sass';
4581                      break;
4582                  case 'sh':
4583                  case 'bash':
4584                      $type = 'text/x-sh';
4585                      break;
4586                  case 'sql':
4587                      $type = 'text/x-sql';
4588                      break;
4589                  case 'svg':
4590                      $type = 'application/svg+xml';
4591                      break;
4592                  case 'xml':
4593                      $type = 'text/xml';
4594                      break;
4595                  case 'yml':
4596                  case 'yaml':
4597                      $type = 'text/x-yaml';
4598                      break;
4599                  case 'txt':
4600                  default:
4601                      $type = 'text/plain';
4602                      break;
4603              }
4604          }
4605      }
4606  
4607      if ( in_array( $type, array( 'text/css', 'text/x-scss', 'text/x-less', 'text/x-sass' ), true ) ) {
4608          $settings['codemirror'] = array_merge(
4609              $settings['codemirror'],
4610              array(
4611                  'mode'              => $type,
4612                  'lint'              => false,
4613                  'autoCloseBrackets' => true,
4614                  'matchBrackets'     => true,
4615              )
4616          );
4617      } elseif ( 'text/x-diff' === $type ) {
4618          $settings['codemirror'] = array_merge(
4619              $settings['codemirror'],
4620              array(
4621                  'mode' => 'diff',
4622              )
4623          );
4624      } elseif ( 'text/html' === $type ) {
4625          $settings['codemirror'] = array_merge(
4626              $settings['codemirror'],
4627              array(
4628                  'mode'              => 'htmlmixed',
4629                  'lint'              => true,
4630                  'autoCloseBrackets' => true,
4631                  'autoCloseTags'     => true,
4632                  'matchTags'         => array(
4633                      'bothTags' => true,
4634                  ),
4635              )
4636          );
4637  
4638          if ( ! current_user_can( 'unfiltered_html' ) ) {
4639              $settings['htmlhint']['kses'] = wp_kses_allowed_html( 'post' );
4640          }
4641      } elseif ( 'text/x-gfm' === $type ) {
4642          $settings['codemirror'] = array_merge(
4643              $settings['codemirror'],
4644              array(
4645                  'mode'                => 'gfm',
4646                  'highlightFormatting' => true,
4647              )
4648          );
4649      } elseif ( 'application/javascript' === $type || 'text/javascript' === $type ) {
4650          $settings['codemirror'] = array_merge(
4651              $settings['codemirror'],
4652              array(
4653                  'mode'              => 'javascript',
4654                  'lint'              => true,
4655                  'autoCloseBrackets' => true,
4656                  'matchBrackets'     => true,
4657              )
4658          );
4659      } elseif ( str_contains( $type, 'json' ) ) {
4660          $settings['codemirror'] = array_merge(
4661              $settings['codemirror'],
4662              array(
4663                  'mode'              => array(
4664                      'name' => 'javascript',
4665                  ),
4666                  'lint'              => true,
4667                  'autoCloseBrackets' => true,
4668                  'matchBrackets'     => true,
4669              )
4670          );
4671          if ( 'application/ld+json' === $type ) {
4672              $settings['codemirror']['mode']['jsonld'] = true;
4673          } else {
4674              $settings['codemirror']['mode']['json'] = true;
4675          }
4676      } elseif ( str_contains( $type, 'jsx' ) ) {
4677          $settings['codemirror'] = array_merge(
4678              $settings['codemirror'],
4679              array(
4680                  'mode'              => 'jsx',
4681                  'autoCloseBrackets' => true,
4682                  'matchBrackets'     => true,
4683              )
4684          );
4685      } elseif ( 'text/x-markdown' === $type ) {
4686          $settings['codemirror'] = array_merge(
4687              $settings['codemirror'],
4688              array(
4689                  'mode'                => 'markdown',
4690                  'highlightFormatting' => true,
4691              )
4692          );
4693      } elseif ( 'text/nginx' === $type ) {
4694          $settings['codemirror'] = array_merge(
4695              $settings['codemirror'],
4696              array(
4697                  'mode' => 'nginx',
4698              )
4699          );
4700      } elseif ( 'application/x-httpd-php' === $type ) {
4701          $settings['codemirror'] = array_merge(
4702              $settings['codemirror'],
4703              array(
4704                  'mode'              => 'php',
4705                  'autoCloseBrackets' => true,
4706                  'autoCloseTags'     => true,
4707                  'matchBrackets'     => true,
4708                  'matchTags'         => array(
4709                      'bothTags' => true,
4710                  ),
4711              )
4712          );
4713      } elseif ( 'text/x-sql' === $type || 'text/x-mysql' === $type ) {
4714          $settings['codemirror'] = array_merge(
4715              $settings['codemirror'],
4716              array(
4717                  'mode'              => 'sql',
4718                  'autoCloseBrackets' => true,
4719                  'matchBrackets'     => true,
4720              )
4721          );
4722      } elseif ( str_contains( $type, 'xml' ) ) {
4723          $settings['codemirror'] = array_merge(
4724              $settings['codemirror'],
4725              array(
4726                  'mode'              => 'xml',
4727                  'autoCloseBrackets' => true,
4728                  'autoCloseTags'     => true,
4729                  'matchTags'         => array(
4730                      'bothTags' => true,
4731                  ),
4732              )
4733          );
4734      } elseif ( 'text/x-yaml' === $type ) {
4735          $settings['codemirror'] = array_merge(
4736              $settings['codemirror'],
4737              array(
4738                  'mode' => 'yaml',
4739              )
4740          );
4741      } else {
4742          $settings['codemirror']['mode'] = $type;
4743      }
4744  
4745      if ( ! empty( $settings['codemirror']['lint'] ) ) {
4746          $settings['codemirror']['gutters'][] = 'CodeMirror-lint-markers';
4747      }
4748  
4749      // Let settings supplied via args override any defaults.
4750      foreach ( wp_array_slice_assoc( $args, array( 'codemirror', 'csslint', 'jshint', 'htmlhint' ) ) as $key => $value ) {
4751          $settings[ $key ] = array_merge(
4752              $settings[ $key ],
4753              $value
4754          );
4755      }
4756  
4757      /**
4758       * Filters settings that are passed into the code editor.
4759       *
4760       * Returning a falsey value will disable the syntax-highlighting code editor.
4761       *
4762       * @since 4.9.0
4763       *
4764       * @param array $settings The array of settings passed to the code editor.
4765       *                        A falsey value disables the editor.
4766       * @param array $args {
4767       *     Args passed when calling `get_code_editor_settings()`.
4768       *
4769       *     @type string   $type       The MIME type of the file to be edited.
4770       *     @type string   $file       Filename being edited.
4771       *     @type WP_Theme $theme      Theme being edited when on the theme file editor.
4772       *     @type string   $plugin     Plugin being edited when on the plugin file editor.
4773       *     @type array    $codemirror Additional CodeMirror setting overrides.
4774       *     @type array    $csslint    CSSLint rule overrides.
4775       *     @type array    $jshint     JSHint rule overrides.
4776       *     @type array    $htmlhint   HTMLHint rule overrides.
4777       * }
4778       */
4779      return apply_filters( 'wp_code_editor_settings', $settings, $args );
4780  }
4781  
4782  /**
4783   * Retrieves the contents of the search WordPress query variable.
4784   *
4785   * The search query string is passed through esc_attr() to ensure that it is safe
4786   * for placing in an HTML attribute.
4787   *
4788   * @since 2.3.0
4789   *
4790   * @param bool $escaped Whether the result is escaped. Default true.
4791   *                      Only use when you are later escaping it. Do not use unescaped.
4792   * @return string
4793   */
4794  function get_search_query( $escaped = true ) {
4795      /**
4796       * Filters the contents of the search query variable.
4797       *
4798       * @since 2.3.0
4799       *
4800       * @param mixed $search Contents of the search query variable.
4801       */
4802      $query = apply_filters( 'get_search_query', get_query_var( 's' ) );
4803  
4804      if ( $escaped ) {
4805          $query = esc_attr( $query );
4806      }
4807      return $query;
4808  }
4809  
4810  /**
4811   * Displays the contents of the search query variable.
4812   *
4813   * The search query string is passed through esc_attr() to ensure that it is safe
4814   * for placing in an HTML attribute.
4815   *
4816   * @since 2.1.0
4817   */
4818  function the_search_query() {
4819      /**
4820       * Filters the contents of the search query variable, for display.
4821       *
4822       * @since 2.3.0
4823       *
4824       * @param mixed $search Contents of the search query variable.
4825       */
4826      echo esc_attr( apply_filters( 'the_search_query', get_search_query( false ) ) );
4827  }
4828  
4829  /**
4830   * Gets the language attributes for the 'html' tag.
4831   *
4832   * Builds up a set of HTML attributes containing the text direction and language
4833   * information for the page.
4834   *
4835   * @since 4.3.0
4836   *
4837   * @param string $doctype Optional. The type of HTML document. Accepts 'xhtml' or 'html'. Default 'html'.
4838   * @return string A space-separated list of language attributes.
4839   */
4840  function get_language_attributes( $doctype = 'html' ) {
4841      $attributes = array();
4842  
4843      if ( function_exists( 'is_rtl' ) && is_rtl() ) {
4844          $attributes[] = 'dir="rtl"';
4845      }
4846  
4847      $lang      = get_bloginfo( 'language' );
4848      $html_type = get_option( 'html_type' );
4849  
4850      if ( $lang ) {
4851          if ( 'text/html' === $html_type || 'html' === $doctype ) {
4852              $attributes[] = 'lang="' . esc_attr( $lang ) . '"';
4853          }
4854  
4855          // The $html_type option may be false on a new install on the setup-config.php page.
4856          if ( ( $html_type && 'text/html' !== $html_type ) || 'xhtml' === $doctype ) {
4857              $attributes[] = 'xml:lang="' . esc_attr( $lang ) . '"';
4858          }
4859      }
4860  
4861      $output = implode( ' ', $attributes );
4862  
4863      /**
4864       * Filters the language attributes for display in the 'html' tag.
4865       *
4866       * @since 2.5.0
4867       * @since 4.3.0 Added the `$doctype` parameter.
4868       *
4869       * @param string $output  A space-separated list of language attributes.
4870       * @param string $doctype The type of HTML document (xhtml|html).
4871       */
4872      return apply_filters( 'language_attributes', $output, $doctype );
4873  }
4874  
4875  /**
4876   * Displays the language attributes for the 'html' tag.
4877   *
4878   * Builds up a set of HTML attributes containing the text direction and language
4879   * information for the page.
4880   *
4881   * @since 2.1.0
4882   * @since 4.3.0 Converted into a wrapper for get_language_attributes().
4883   *
4884   * @param string $doctype Optional. The type of HTML document. Accepts 'xhtml' or 'html'. Default 'html'.
4885   */
4886  function language_attributes( $doctype = 'html' ) {
4887      echo get_language_attributes( $doctype );
4888  }
4889  
4890  /**
4891   * Retrieves paginated links for archive post pages.
4892   *
4893   * Technically, the function can be used to create paginated link list for any
4894   * area. The 'base' argument is used to reference the url, which will be used to
4895   * create the paginated links. The 'format' argument is then used for replacing
4896   * the page number. It is however, most likely and by default, to be used on the
4897   * archive post pages.
4898   *
4899   * The 'type' argument controls format of the returned value. The default is
4900   * 'plain', which is just a string with the links separated by a newline
4901   * character. The other possible values are either 'array' or 'list'. The
4902   * 'array' value will return an array of the paginated link list to offer full
4903   * control of display. The 'list' value will place all of the paginated links in
4904   * an unordered HTML list.
4905   *
4906   * The 'total' argument is the total amount of pages and is an integer. The
4907   * 'current' argument is the current page number and is also an integer.
4908   *
4909   * An example of the 'base' argument is "http://example.com/all_posts.php%_%"
4910   * and the '%_%' is required. The '%_%' will be replaced by the contents of in
4911   * the 'format' argument. An example for the 'format' argument is "?page=%#%"
4912   * and the '%#%' is also required. The '%#%' will be replaced with the page
4913   * number.
4914   *
4915   * You can include the previous and next links in the list by setting the
4916   * 'prev_next' argument to true, which it is by default. You can set the
4917   * previous text, by using the 'prev_text' argument. You can set the next text
4918   * by setting the 'next_text' argument.
4919   *
4920   * If the 'show_all' argument is set to true, then it will show all of the pages
4921   * instead of a short list of the pages near the current page. By default, the
4922   * 'show_all' is set to false and controlled by the 'end_size' and 'mid_size'
4923   * arguments. The 'end_size' argument is how many numbers on either the start
4924   * and the end list edges, by default is 1. The 'mid_size' argument is how many
4925   * numbers to either side of current page, but not including current page.
4926   *
4927   * It is possible to add query vars to the link by using the 'add_args' argument
4928   * and see add_query_arg() for more information.
4929   *
4930   * The 'before_page_number' and 'after_page_number' arguments allow users to
4931   * augment the links themselves. Typically this might be to add context to the
4932   * numbered links so that screen reader users understand what the links are for.
4933   * The text strings are added before and after the page number - within the
4934   * anchor tag.
4935   *
4936   * @since 2.1.0
4937   * @since 4.9.0 Added the `aria_current` argument.
4938   *
4939   * @global WP_Query   $wp_query   WordPress Query object.
4940   * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
4941   *
4942   * @param string|array $args {
4943   *     Optional. Array or string of arguments for generating paginated links for archives.
4944   *
4945   *     @type string $base               Base of the paginated url. Default empty.
4946   *     @type string $format             Format for the pagination structure. Default empty.
4947   *     @type int    $total              The total amount of pages. Default is the value WP_Query's
4948   *                                      `max_num_pages` or 1.
4949   *     @type int    $current            The current page number. Default is 'paged' query var or 1.
4950   *     @type string $aria_current       The value for the aria-current attribute. Possible values are 'page',
4951   *                                      'step', 'location', 'date', 'time', 'true', 'false'. Default is 'page'.
4952   *     @type bool   $show_all           Whether to show all pages. Default false.
4953   *     @type int    $end_size           How many numbers on either the start and the end list edges.
4954   *                                      Default 1.
4955   *     @type int    $mid_size           How many numbers to either side of the current pages. Default 2.
4956   *     @type bool   $prev_next          Whether to include the previous and next links in the list. Default true.
4957   *     @type string $prev_text          The previous page text. Default '&laquo; Previous'.
4958   *     @type string $next_text          The next page text. Default 'Next &raquo;'.
4959   *     @type string $type               Controls format of the returned value. Possible values are 'plain',
4960   *                                      'array' and 'list'. Default is 'plain'.
4961   *     @type array  $add_args           An array of query args to add. Default false.
4962   *     @type string $add_fragment       A string to append to each link. Default empty.
4963   *     @type string $before_page_number A string to appear before the page number. Default empty.
4964   *     @type string $after_page_number  A string to append after the page number. Default empty.
4965   * }
4966   * @return string|string[]|null String of page links or array of page links, depending on 'type' argument.
4967   *                              Null if total number of pages is less than 2.
4968   *
4969   * @phpstan-return (
4970   *     $args is array{ total: int<min, 1>, ... }
4971   *         ? null
4972   *         : (
4973   *             $args is array{ total: int<2, max>, ... }
4974   *                 ? ( $args is array{ type: 'array', ... } ? list<string> : string )
4975   *                 : ( $args is array{ type: 'array', ... } ? list<string> : string )|null
4976   *         )
4977   * )
4978   */
4979  function paginate_links( $args = '' ) {
4980      global $wp_query, $wp_rewrite;
4981  
4982      // Setting up default values based on the current URL.
4983      $pagenum_link = html_entity_decode( get_pagenum_link() );
4984      $url_parts    = explode( '?', $pagenum_link );
4985  
4986      // Get max pages and current page out of the current query, if available.
4987      $total   = $wp_query->max_num_pages ?? 1;
4988      $current = get_query_var( 'paged' ) ? (int) get_query_var( 'paged' ) : 1;
4989  
4990      /*
4991       * Ensures sites not using trailing slashes get links in the form
4992       * `/page/2` rather than `/page/2/`. On these sites, linking to the
4993       * URL with a trailing slash will result in a 301 redirect from the
4994       * incorrect URL to the correctly formatted one. This presents an
4995       * unnecessary performance hit.
4996       */
4997      if ( $wp_rewrite->using_permalinks() && ! $wp_rewrite->use_trailing_slashes ) {
4998          $pagenum_link = untrailingslashit( $url_parts[0] );
4999      } else {
5000          $pagenum_link = trailingslashit( $url_parts[0] );
5001      }
5002      $pagenum_link .= '%_%';
5003  
5004      // URL base depends on permalink settings.
5005      $format  = $wp_rewrite->using_index_permalinks() && ! strpos( $pagenum_link, 'index.php' ) ? 'index.php/' : '';
5006      $format .= $wp_rewrite->using_permalinks() ? user_trailingslashit( $wp_rewrite->pagination_base . '/%#%', 'paged' ) : '?paged=%#%';
5007      if ( $wp_rewrite->using_permalinks() && ! $wp_rewrite->use_trailing_slashes ) {
5008          $format = '/' . ltrim( $format, '/' );
5009      }
5010  
5011      $defaults = array(
5012          'base'               => $pagenum_link, // http://example.com/all_posts.php%_% : %_% is replaced by format (below).
5013          'format'             => $format, // ?page=%#% : %#% is replaced by the page number.
5014          'total'              => $total,
5015          'current'            => $current,
5016          'aria_current'       => 'page',
5017          'show_all'           => false,
5018          'prev_next'          => true,
5019          'prev_text'          => __( '&laquo; Previous' ),
5020          'next_text'          => __( 'Next &raquo;' ),
5021          'end_size'           => 1,
5022          'mid_size'           => 2,
5023          'type'               => 'plain',
5024          'add_args'           => array(), // Array of query args to add.
5025          'add_fragment'       => '',
5026          'before_page_number' => '',
5027          'after_page_number'  => '',
5028      );
5029  
5030      $args = wp_parse_args( $args, $defaults );
5031  
5032      if ( ! is_array( $args['add_args'] ) ) {
5033          $args['add_args'] = array();
5034      }
5035  
5036      // Merge additional query vars found in the original URL into 'add_args' array.
5037      if ( isset( $url_parts[1] ) ) {
5038          // Find the format argument.
5039          $format       = explode( '?', str_replace( '%_%', $args['format'], $args['base'] ) );
5040          $format_query = $format[1] ?? '';
5041          wp_parse_str( $format_query, $format_args );
5042  
5043          // Find the query args of the requested URL.
5044          wp_parse_str( $url_parts[1], $url_query_args );
5045  
5046          // Remove the format argument from the array of query arguments, to avoid overwriting custom format.
5047          foreach ( $format_args as $format_arg => $format_arg_value ) {
5048              unset( $url_query_args[ $format_arg ] );
5049          }
5050  
5051          $args['add_args'] = array_merge( $args['add_args'], urlencode_deep( $url_query_args ) );
5052      }
5053  
5054      // Who knows what else people pass in $args.
5055      $total = (int) $args['total'];
5056      if ( $total < 2 ) {
5057          return null;
5058      }
5059      $current  = (int) $args['current'];
5060      $end_size = (int) $args['end_size']; // Out of bounds? Make it the default.
5061      if ( $end_size < 1 ) {
5062          $end_size = 1;
5063      }
5064      $mid_size = (int) $args['mid_size'];
5065      if ( $mid_size < 0 ) {
5066          $mid_size = 2;
5067      }
5068  
5069      $add_args   = $args['add_args'];
5070      $r          = '';
5071      $page_links = array();
5072      $dots       = false;
5073  
5074      if ( $args['prev_next'] && $current && 1 < $current ) :
5075          $link = str_replace( '%_%', 2 === $current ? '' : $args['format'], $args['base'] );
5076          $link = str_replace( '%#%', $current - 1, $link );
5077          if ( $add_args ) {
5078              $link = add_query_arg( $add_args, $link );
5079          }
5080          $link .= $args['add_fragment'];
5081  
5082          $page_links[] = sprintf(
5083              '<a class="prev page-numbers" href="%s">%s</a>',
5084              /**
5085               * Filters the paginated links for the given archive pages.
5086               *
5087               * @since 3.0.0
5088               *
5089               * @param string $link The paginated link URL.
5090               */
5091              esc_url( apply_filters( 'paginate_links', $link ) ),
5092              $args['prev_text']
5093          );
5094      endif;
5095  
5096      for ( $n = 1; $n <= $total; $n++ ) :
5097          if ( $n === $current ) :
5098              $page_links[] = sprintf(
5099                  '<span aria-current="%s" class="page-numbers current">%s</span>',
5100                  esc_attr( $args['aria_current'] ),
5101                  $args['before_page_number'] . number_format_i18n( $n ) . $args['after_page_number']
5102              );
5103  
5104              $dots = true;
5105          else :
5106              if ( $args['show_all'] || ( $n <= $end_size || ( $current && $n >= $current - $mid_size && $n <= $current + $mid_size ) || $n > $total - $end_size ) ) :
5107                  $link = str_replace( '%_%', 1 === $n ? '' : $args['format'], $args['base'] );
5108                  $link = str_replace( '%#%', $n, $link );
5109                  if ( $add_args ) {
5110                      $link = add_query_arg( $add_args, $link );
5111                  }
5112                  $link .= $args['add_fragment'];
5113  
5114                  $page_links[] = sprintf(
5115                      '<a class="page-numbers" href="%s">%s</a>',
5116                      /** This filter is documented in wp-includes/general-template.php */
5117                      esc_url( apply_filters( 'paginate_links', $link ) ),
5118                      $args['before_page_number'] . number_format_i18n( $n ) . $args['after_page_number']
5119                  );
5120  
5121                  $dots = true;
5122              elseif ( $dots && ! $args['show_all'] ) :
5123                  $page_links[] = '<span class="page-numbers dots">' . __( '&hellip;' ) . '</span>';
5124  
5125                  $dots = false;
5126              endif;
5127          endif;
5128      endfor;
5129  
5130      if ( $args['prev_next'] && $current && $current < $total ) :
5131          $link = str_replace( '%_%', $args['format'], $args['base'] );
5132          $link = str_replace( '%#%', $current + 1, $link );
5133          if ( $add_args ) {
5134              $link = add_query_arg( $add_args, $link );
5135          }
5136          $link .= $args['add_fragment'];
5137  
5138          $page_links[] = sprintf(
5139              '<a class="next page-numbers" href="%s">%s</a>',
5140              /** This filter is documented in wp-includes/general-template.php */
5141              esc_url( apply_filters( 'paginate_links', $link ) ),
5142              $args['next_text']
5143          );
5144      endif;
5145  
5146      switch ( $args['type'] ) {
5147          case 'array':
5148              return $page_links;
5149  
5150          case 'list':
5151              $r .= "<ul class='page-numbers'>\n\t<li>";
5152              $r .= implode( "</li>\n\t<li>", $page_links );
5153              $r .= "</li>\n</ul>\n";
5154              break;
5155  
5156          default:
5157              $r = implode( "\n", $page_links );
5158              break;
5159      }
5160  
5161      /**
5162       * Filters the HTML output of paginated links for archives.
5163       *
5164       * @since 5.7.0
5165       *
5166       * @param string $r    HTML output.
5167       * @param array  $args An array of arguments. See paginate_links()
5168       *                     for information on accepted arguments.
5169       */
5170      $r = apply_filters( 'paginate_links_output', $r, $args );
5171  
5172      return $r;
5173  }
5174  
5175  /**
5176   * Registers an admin color scheme css file.
5177   *
5178   * Allows a plugin to register a new admin color scheme. For example:
5179   *
5180   *     wp_admin_css_color( 'classic', __( 'Classic' ), admin_url( "css/colors-classic.css" ), array(
5181   *         '#07273E', '#14568A', '#D54E21', '#2683AE'
5182   *     ) );
5183   *
5184   * @since 2.5.0
5185   *
5186   * @global array $_wp_admin_css_colors
5187   *
5188   * @param string $key    The unique key for this theme.
5189   * @param string $name   The name of the theme.
5190   * @param string $url    The URL of the CSS file containing the color scheme.
5191   * @param array  $colors Optional. An array of CSS color definition strings which are used
5192   *                       to give the user a feel for the theme.
5193   * @param array  $icons {
5194   *     Optional. CSS color definitions used to color any SVG icons.
5195   *
5196   *     @type string $base    SVG icon base color.
5197   *     @type string $focus   SVG icon color on focus.
5198   *     @type string $current SVG icon color of current admin menu link.
5199   * }
5200   */
5201  function wp_admin_css_color( $key, $name, $url, $colors = array(), $icons = array() ) {
5202      global $_wp_admin_css_colors;
5203  
5204      if ( ! isset( $_wp_admin_css_colors ) ) {
5205          $_wp_admin_css_colors = array();
5206      }
5207  
5208      $_wp_admin_css_colors[ $key ] = (object) array(
5209          'name'        => $name,
5210          'url'         => $url,
5211          'colors'      => $colors,
5212          'icon_colors' => $icons,
5213      );
5214  }
5215  
5216  /**
5217   * Registers the default admin color schemes.
5218   *
5219   * Registers the initial set of eight color schemes in the Profile section
5220   * of the dashboard which allows for styling the admin menu and toolbar.
5221   *
5222   * @see wp_admin_css_color()
5223   *
5224   * @since 3.0.0
5225   */
5226  function register_admin_color_schemes() {
5227      $suffix  = is_rtl() ? '-rtl' : '';
5228      $suffix .= SCRIPT_DEBUG ? '' : '.min';
5229  
5230      wp_admin_css_color(
5231          'modern',
5232          _x( 'Default', 'admin color scheme' ),
5233          admin_url( "css/colors/modern/colors$suffix.css" ),
5234          array( '#1e1e1e', '#3858e9', '#7b90ff' ),
5235          array(
5236              'base'    => '#f3f1f1',
5237              'focus'   => '#fff',
5238              'current' => '#fff',
5239          )
5240      );
5241  
5242      wp_admin_css_color(
5243          'fresh',
5244          _x( 'Fresh', 'admin color scheme' ),
5245          false,
5246          array( '#1d2327', '#2c3338', '#2271b1', '#72aee6' ),
5247          array(
5248              'base'    => '#a7aaad',
5249              'focus'   => '#72aee6',
5250              'current' => '#fff',
5251          )
5252      );
5253  
5254      wp_admin_css_color(
5255          'light',
5256          _x( 'Light', 'admin color scheme' ),
5257          admin_url( "css/colors/light/colors$suffix.css" ),
5258          array( '#e5e5e5', '#6a6a6a', '#c64606', '#007cba' ),
5259          array(
5260              'base'    => '#999',
5261              'focus'   => '#ccc',
5262              'current' => '#ccc',
5263          )
5264      );
5265  
5266      wp_admin_css_color(
5267          'blue',
5268          _x( 'Blue', 'admin color scheme' ),
5269          admin_url( "css/colors/blue/colors$suffix.css" ),
5270          array( '#183751', '#245278', '#437aa8', '#e1a948' ),
5271          array(
5272              'base'    => '#e5f8ff',
5273              'focus'   => '#fff',
5274              'current' => '#fff',
5275          )
5276      );
5277  
5278      wp_admin_css_color(
5279          'midnight',
5280          _x( 'Midnight', 'admin color scheme' ),
5281          admin_url( "css/colors/midnight/colors$suffix.css" ),
5282          array( '#232a2e', '#333c42', '#69a8bb', '#cf4339' ),
5283          array(
5284              'base'    => '#f1f2f3',
5285              'focus'   => '#fff',
5286              'current' => '#fff',
5287          )
5288      );
5289  
5290      wp_admin_css_color(
5291          'sunrise',
5292          _x( 'Sunrise', 'admin color scheme' ),
5293          admin_url( "css/colors/sunrise/colors$suffix.css" ),
5294          array( '#6f2724', '#8a312d', '#ad631e', '#ccaf0b' ),
5295          array(
5296              'base'    => '#f3f1f1',
5297              'focus'   => '#fff',
5298              'current' => '#fff',
5299          )
5300      );
5301  
5302      wp_admin_css_color(
5303          'ectoplasm',
5304          _x( 'Ectoplasm', 'admin color scheme' ),
5305          admin_url( "css/colors/ectoplasm/colors$suffix.css" ),
5306          array( '#392751', '#4a3369', '#646c3e', '#d46f15' ),
5307          array(
5308              'base'    => '#ece6f6',
5309              'focus'   => '#fff',
5310              'current' => '#fff',
5311          )
5312      );
5313  
5314      wp_admin_css_color(
5315          'ocean',
5316          _x( 'Ocean', 'admin color scheme' ),
5317          admin_url( "css/colors/ocean/colors$suffix.css" ),
5318          array( '#2b3f44', '#39535a', '#567958', '#aa9d88' ),
5319          array(
5320              'base'    => '#f2fcff',
5321              'focus'   => '#fff',
5322              'current' => '#fff',
5323          )
5324      );
5325  
5326      wp_admin_css_color(
5327          'coffee',
5328          _x( 'Coffee', 'admin color scheme' ),
5329          admin_url( "css/colors/coffee/colors$suffix.css" ),
5330          array( '#382e27', '#5c4c40', '#916745', '#9ea476' ),
5331          array(
5332              'base'    => '#f3f2f1',
5333              'focus'   => '#fff',
5334              'current' => '#fff',
5335          )
5336      );
5337  }
5338  
5339  /**
5340   * Displays the URL of a WordPress admin CSS file.
5341   *
5342   * @see WP_Styles::_css_href() and its {@see 'style_loader_src'} filter.
5343   *
5344   * @since 2.3.0
5345   *
5346   * @param string $file file relative to wp-admin/ without its ".css" extension.
5347   * @return string
5348   */
5349  function wp_admin_css_uri( $file = 'wp-admin' ) {
5350      if ( defined( 'WP_INSTALLING' ) ) {
5351          $_file = "./$file.css";
5352      } else {
5353          $_file = admin_url( "$file.css" );
5354      }
5355      $_file = add_query_arg( 'version', get_bloginfo( 'version' ), $_file );
5356  
5357      /**
5358       * Filters the URI of a WordPress admin CSS file.
5359       *
5360       * @since 2.3.0
5361       *
5362       * @param string $_file Relative path to the file with query arguments attached.
5363       * @param string $file  Relative path to the file, minus its ".css" extension.
5364       */
5365      return apply_filters( 'wp_admin_css_uri', $_file, $file );
5366  }
5367  
5368  /**
5369   * Enqueues or directly prints a stylesheet link to the specified CSS file.
5370   *
5371   * "Intelligently" decides to enqueue or to print the CSS file. If the
5372   * {@see 'wp_print_styles'} action has *not* yet been called, the CSS file will be
5373   * enqueued. If the {@see 'wp_print_styles'} action has been called, the CSS link will
5374   * be printed. Printing may be forced by passing true as the $force_echo
5375   * (second) parameter.
5376   *
5377   * For backward compatibility with WordPress 2.3 calling method: If the $file
5378   * (first) parameter does not correspond to a registered CSS file, we assume
5379   * $file is a file relative to wp-admin/ without its ".css" extension. A
5380   * stylesheet link to that generated URL is printed.
5381   *
5382   * @since 2.3.0
5383   *
5384   * @param string $file       Optional. Style handle name or file name (without ".css" extension) relative
5385   *                           to wp-admin/. Defaults to 'wp-admin'.
5386   * @param bool   $force_echo Optional. Force the stylesheet link to be printed rather than enqueued.
5387   */
5388  function wp_admin_css( $file = 'wp-admin', $force_echo = false ) {
5389      // For backward compatibility.
5390      $handle = str_starts_with( $file, 'css/' ) ? substr( $file, 4 ) : $file;
5391  
5392      if ( wp_styles()->query( $handle ) ) {
5393          if ( $force_echo || did_action( 'wp_print_styles' ) ) {
5394              // We already printed the style queue. Print this one immediately.
5395              wp_print_styles( $handle );
5396          } else {
5397              // Add to style queue.
5398              wp_enqueue_style( $handle );
5399          }
5400          return;
5401      }
5402  
5403      $stylesheet_link = sprintf(
5404          "<link rel='stylesheet' href='%s' />\n",
5405          esc_url( wp_admin_css_uri( $file ) )
5406      );
5407  
5408      /**
5409       * Filters the stylesheet link to the specified CSS file.
5410       *
5411       * If the site is set to display right-to-left, the RTL stylesheet link
5412       * will be used instead.
5413       *
5414       * @since 2.3.0
5415       * @param string $stylesheet_link HTML link element for the stylesheet.
5416       * @param string $file            Style handle name or filename (without ".css" extension)
5417       *                                relative to wp-admin/. Defaults to 'wp-admin'.
5418       */
5419      echo apply_filters( 'wp_admin_css', $stylesheet_link, $file );
5420  
5421      if ( function_exists( 'is_rtl' ) && is_rtl() ) {
5422          $rtl_stylesheet_link = sprintf(
5423              "<link rel='stylesheet' href='%s' />\n",
5424              esc_url( wp_admin_css_uri( "$file-rtl" ) )
5425          );
5426  
5427          /** This filter is documented in wp-includes/general-template.php */
5428          echo apply_filters( 'wp_admin_css', $rtl_stylesheet_link, "$file-rtl" );
5429      }
5430  }
5431  
5432  /**
5433   * Enqueues the default ThickBox js and css.
5434   *
5435   * If any of the settings need to be changed, this can be done with another js
5436   * file similar to media-upload.js. That file should
5437   * require array('thickbox') to ensure it is loaded after.
5438   *
5439   * @since 2.5.0
5440   */
5441  function add_thickbox() {
5442      wp_enqueue_script( 'thickbox' );
5443      wp_enqueue_style( 'thickbox' );
5444  
5445      if ( is_network_admin() ) {
5446          add_action( 'admin_head', '_thickbox_path_admin_subfolder' );
5447      }
5448  }
5449  
5450  /**
5451   * Displays the XHTML generator that is generated on the wp_head hook.
5452   *
5453   * See {@see 'wp_head'}.
5454   *
5455   * @since 2.5.0
5456   */
5457  function wp_generator() {
5458      /**
5459       * Filters the output of the XHTML generator tag.
5460       *
5461       * @since 2.5.0
5462       *
5463       * @param string $generator_type The XHTML generator.
5464       */
5465      the_generator( apply_filters( 'wp_generator_type', 'xhtml' ) );
5466  }
5467  
5468  /**
5469   * Displays the generator XML or Comment for RSS, ATOM, etc.
5470   *
5471   * Returns the correct generator type for the requested output format. Allows
5472   * for a plugin to filter generators overall the {@see 'the_generator'} filter.
5473   *
5474   * @since 2.5.0
5475   *
5476   * @param string $type The type of generator to output - (html|xhtml|atom|rss2|rdf|comment|export).
5477   */
5478  function the_generator( $type ) {
5479      /**
5480       * Filters the output of the XHTML generator tag, for display.
5481       *
5482       * @since 2.5.0
5483       *
5484       * @param string $generator_type The generator output.
5485       * @param string $type           The type of generator to output. Accepts 'html',
5486       *                               'xhtml', 'atom', 'rss2', 'rdf', 'comment', 'export'.
5487       */
5488      echo apply_filters( 'the_generator', get_the_generator( $type ), $type ) . "\n";
5489  }
5490  
5491  /**
5492   * Creates the generator XML or Comment for RSS, ATOM, etc.
5493   *
5494   * Returns the correct generator type for the requested output format. Allows
5495   * for a plugin to filter generators on an individual basis using the
5496   * {@see 'get_the_generator_$type'} filter.
5497   *
5498   * @since 2.5.0
5499   *
5500   * @param string $type The type of generator to return - (html|xhtml|atom|rss2|rdf|comment|export).
5501   * @return string|null The HTML content for the generator.
5502   */
5503  function get_the_generator( $type = '' ) {
5504      if ( empty( $type ) ) {
5505  
5506          $current_filter = current_filter();
5507          if ( empty( $current_filter ) ) {
5508              return null;
5509          }
5510  
5511          switch ( $current_filter ) {
5512              case 'rss2_head':
5513              case 'commentsrss2_head':
5514                  $type = 'rss2';
5515                  break;
5516              case 'rss_head':
5517              case 'opml_head':
5518                  $type = 'comment';
5519                  break;
5520              case 'rdf_header':
5521                  $type = 'rdf';
5522                  break;
5523              case 'atom_head':
5524              case 'comments_atom_head':
5525              case 'app_head':
5526                  $type = 'atom';
5527                  break;
5528          }
5529      }
5530  
5531      switch ( $type ) {
5532          case 'html':
5533              $gen = '<meta name="generator" content="WordPress ' . esc_attr( get_bloginfo( 'version' ) ) . '">';
5534              break;
5535          case 'xhtml':
5536              $gen = '<meta name="generator" content="WordPress ' . esc_attr( get_bloginfo( 'version' ) ) . '" />';
5537              break;
5538          case 'atom':
5539              $gen = '<generator uri="https://wordpress.org/" version="' . esc_attr( get_bloginfo_rss( 'version' ) ) . '">WordPress</generator>';
5540              break;
5541          case 'rss2':
5542              $gen = '<generator>' . sanitize_url( 'https://wordpress.org/?v=' . get_bloginfo_rss( 'version' ) ) . '</generator>';
5543              break;
5544          case 'rdf':
5545              $gen = '<admin:generatorAgent rdf:resource="' . sanitize_url( 'https://wordpress.org/?v=' . get_bloginfo_rss( 'version' ) ) . '" />';
5546              break;
5547          case 'comment':
5548              $gen = '<!-- generator="WordPress/' . esc_attr( get_bloginfo( 'version' ) ) . '" -->';
5549              break;
5550          case 'export':
5551              $gen = '<!-- generator="WordPress/' . esc_attr( get_bloginfo_rss( 'version' ) ) . '" created="' . gmdate( 'Y-m-d H:i' ) . '" -->';
5552              break;
5553      }
5554  
5555      /**
5556       * Filters the HTML for the retrieved generator type.
5557       *
5558       * The dynamic portion of the hook name, `$type`, refers to the generator type.
5559       *
5560       * Possible hook names include:
5561       *
5562       *  - `get_the_generator_atom`
5563       *  - `get_the_generator_comment`
5564       *  - `get_the_generator_export`
5565       *  - `get_the_generator_html`
5566       *  - `get_the_generator_rdf`
5567       *  - `get_the_generator_rss2`
5568       *  - `get_the_generator_xhtml`
5569       *
5570       * @since 2.5.0
5571       *
5572       * @param string $gen  The HTML markup output to wp_head().
5573       * @param string $type The type of generator. Accepts 'html', 'xhtml', 'atom',
5574       *                     'rss2', 'rdf', 'comment', 'export'.
5575       */
5576      return apply_filters( "get_the_generator_{$type}", $gen, $type );
5577  }
5578  
5579  /**
5580   * Outputs the HTML checked attribute.
5581   *
5582   * Compares the first two arguments and if identical marks as checked.
5583   *
5584   * @since 1.0.0
5585   *
5586   * @param mixed $checked One of the values to compare.
5587   * @param mixed $current Optional. The other value to compare if not just true.
5588   *                       Default true.
5589   * @param bool  $display Optional. Whether to echo or just return the string.
5590   *                       Default true.
5591   * @return string HTML attribute or empty string.
5592   */
5593  function checked( $checked, $current = true, $display = true ) {
5594      return __checked_selected_helper( $checked, $current, $display, 'checked' );
5595  }
5596  
5597  /**
5598   * Outputs the HTML selected attribute.
5599   *
5600   * Compares the first two arguments and if identical marks as selected.
5601   *
5602   * @since 1.0.0
5603   *
5604   * @param mixed $selected One of the values to compare.
5605   * @param mixed $current  Optional. The other value to compare if not just true.
5606   *                        Default true.
5607   * @param bool  $display  Optional. Whether to echo or just return the string.
5608   *                        Default true.
5609   * @return string HTML attribute or empty string.
5610   */
5611  function selected( $selected, $current = true, $display = true ) {
5612      return __checked_selected_helper( $selected, $current, $display, 'selected' );
5613  }
5614  
5615  /**
5616   * Outputs the HTML disabled attribute.
5617   *
5618   * Compares the first two arguments and if identical marks as disabled.
5619   *
5620   * @since 3.0.0
5621   *
5622   * @param mixed $disabled One of the values to compare.
5623   * @param mixed $current  Optional. The other value to compare if not just true.
5624   *                        Default true.
5625   * @param bool  $display  Optional. Whether to echo or just return the string.
5626   *                        Default true.
5627   * @return string HTML attribute or empty string.
5628   */
5629  function disabled( $disabled, $current = true, $display = true ) {
5630      return __checked_selected_helper( $disabled, $current, $display, 'disabled' );
5631  }
5632  
5633  /**
5634   * Outputs the HTML readonly attribute.
5635   *
5636   * Compares the first two arguments and if identical marks as readonly.
5637   *
5638   * @since 5.9.0
5639   *
5640   * @param mixed $readonly_value One of the values to compare.
5641   * @param mixed $current        Optional. The other value to compare if not just true.
5642   *                              Default true.
5643   * @param bool  $display        Optional. Whether to echo or just return the string.
5644   *                              Default true.
5645   * @return string HTML attribute or empty string.
5646   */
5647  function wp_readonly( $readonly_value, $current = true, $display = true ) {
5648      return __checked_selected_helper( $readonly_value, $current, $display, 'readonly' );
5649  }
5650  
5651  /*
5652   * Include a compat `readonly()` function on PHP < 8.1. Since PHP 8.1,
5653   * `readonly` is a reserved keyword and cannot be used as a function name.
5654   * In order to avoid PHP parser errors, this function was extracted
5655   * to a separate file and is only included conditionally on PHP < 8.1.
5656   */
5657  if ( PHP_VERSION_ID < 80100 ) {
5658      require_once  __DIR__ . '/php-compat/readonly.php';
5659  }
5660  
5661  /**
5662   * Private helper function for checked, selected, disabled and readonly.
5663   *
5664   * Compares the first two arguments and if identical marks as `$type`.
5665   *
5666   * @since 2.8.0
5667   * @access private
5668   *
5669   * @param mixed  $helper  One of the values to compare.
5670   * @param mixed  $current The other value to compare if not just true.
5671   * @param bool   $display Whether to echo or just return the string.
5672   * @param string $type    The type of checked|selected|disabled|readonly we are doing.
5673   * @return string HTML attribute or empty string.
5674   */
5675  function __checked_selected_helper( $helper, $current, $display, $type ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore
5676      if ( (string) $helper === (string) $current ) {
5677          $result = " $type='$type'";
5678      } else {
5679          $result = '';
5680      }
5681  
5682      if ( $display ) {
5683          echo $result;
5684      }
5685  
5686      return $result;
5687  }
5688  
5689  /**
5690   * Assigns a visual indicator for required form fields.
5691   *
5692   * @since 6.1.0
5693   *
5694   * @return string Indicator glyph wrapped in a `span` tag.
5695   */
5696  function wp_required_field_indicator() {
5697      /* translators: Character to identify required form fields. */
5698      $glyph     = __( '*' );
5699      $indicator = '<span class="required">' . esc_html( $glyph ) . '</span>';
5700  
5701      /**
5702       * Filters the markup for a visual indicator of required form fields.
5703       *
5704       * @since 6.1.0
5705       *
5706       * @param string $indicator Markup for the indicator element.
5707       */
5708      return apply_filters( 'wp_required_field_indicator', $indicator );
5709  }
5710  
5711  /**
5712   * Creates a message to explain required form fields.
5713   *
5714   * @since 6.1.0
5715   *
5716   * @return string Message text and glyph wrapped in a `span` tag.
5717   */
5718  function wp_required_field_message() {
5719      $message = sprintf(
5720          '<span class="required-field-message">%s</span>',
5721          /* translators: %s: Asterisk symbol (*). */
5722          sprintf( __( 'Required fields are marked %s' ), wp_required_field_indicator() )
5723      );
5724  
5725      /**
5726       * Filters the message to explain required form fields.
5727       *
5728       * @since 6.1.0
5729       *
5730       * @param string $message Message text and glyph wrapped in a `span` tag.
5731       */
5732      return apply_filters( 'wp_required_field_message', $message );
5733  }
5734  
5735  /**
5736   * Default settings for heartbeat.
5737   *
5738   * Outputs the nonce used in the heartbeat XHR.
5739   *
5740   * @since 3.6.0
5741   *
5742   * @param array $settings
5743   * @return array Heartbeat settings.
5744   */
5745  function wp_heartbeat_settings( $settings ) {
5746      if ( ! is_admin() ) {
5747          $settings['ajaxurl'] = admin_url( 'admin-ajax.php', 'relative' );
5748      }
5749  
5750      if ( is_user_logged_in() ) {
5751          $settings['nonce'] = wp_create_nonce( 'heartbeat-nonce' );
5752      }
5753  
5754      return $settings;
5755  }


Generated : Sun Oct 25 08:20:35 2026 Cross-referenced by PHPXref