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

   1  <?php
   2  /**
   3   * Comment template functions
   4   *
   5   * These functions are meant to live inside of the WordPress loop.
   6   *
   7   * @package WordPress
   8   * @subpackage Template
   9   */
  10  
  11  /**
  12   * Retrieves the author of the current comment.
  13   *
  14   * If the comment has an empty comment_author field, then 'Anonymous' person is
  15   * assumed.
  16   *
  17   * @since 1.5.0
  18   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
  19   *
  20   * @param int|WP_Comment $comment_id Optional. WP_Comment or the ID of the comment for which to retrieve the author.
  21   *                                   Default current comment.
  22   * @return string The comment author
  23   */
  24  function get_comment_author( $comment_id = 0 ) {
  25      $comment = get_comment( $comment_id );
  26  
  27      if ( ! empty( $comment->comment_ID ) ) {
  28          $comment_id = $comment->comment_ID;
  29      } elseif ( is_scalar( $comment_id ) ) {
  30          $comment_id = (string) $comment_id;
  31      } else {
  32          $comment_id = '0';
  33      }
  34  
  35      if ( empty( $comment->comment_author ) ) {
  36          $user = ! empty( $comment->user_id ) ? get_userdata( $comment->user_id ) : false;
  37          if ( $user ) {
  38              $comment_author = $user->display_name;
  39          } else {
  40              $comment_author = __( 'Anonymous' );
  41          }
  42      } else {
  43          $comment_author = $comment->comment_author;
  44      }
  45  
  46      /**
  47       * Filters the returned comment author name.
  48       *
  49       * @since 1.5.0
  50       * @since 4.1.0 The `$comment_id` and `$comment` parameters were added.
  51       *
  52       * @param string     $comment_author The comment author's username.
  53       * @param string     $comment_id     The comment ID as a numeric string.
  54       * @param WP_Comment $comment        The comment object.
  55       */
  56      return apply_filters( 'get_comment_author', $comment_author, $comment_id, $comment );
  57  }
  58  
  59  /**
  60   * Displays the author of the current comment.
  61   *
  62   * @since 0.71
  63   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
  64   *
  65   * @param int|WP_Comment $comment_id Optional. WP_Comment or the ID of the comment for which to print the author.
  66   *                                   Default current comment.
  67   */
  68  function comment_author( $comment_id = 0 ) {
  69      $comment = get_comment( $comment_id );
  70  
  71      $comment_author = get_comment_author( $comment );
  72  
  73      /**
  74       * Filters the comment author's name for display.
  75       *
  76       * @since 1.2.0
  77       * @since 4.1.0 The `$comment_id` parameter was added.
  78       *
  79       * @param string $comment_author The comment author's username.
  80       * @param string $comment_id     The comment ID as a numeric string.
  81       */
  82      echo apply_filters( 'comment_author', $comment_author, $comment->comment_ID );
  83  }
  84  
  85  /**
  86   * Retrieves the email of the author of the current comment.
  87   *
  88   * @since 1.5.0
  89   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
  90   *
  91   * @param int|WP_Comment $comment_id Optional. WP_Comment or the ID of the comment for which to get the author's email.
  92   *                                   Default current comment.
  93   * @return string The current comment author's email
  94   */
  95  function get_comment_author_email( $comment_id = 0 ) {
  96      $comment = get_comment( $comment_id );
  97  
  98      /**
  99       * Filters the comment author's returned email address.
 100       *
 101       * @since 1.5.0
 102       * @since 4.1.0 The `$comment_id` and `$comment` parameters were added.
 103       *
 104       * @param string     $comment_author_email The comment author's email address.
 105       * @param string     $comment_id           The comment ID as a numeric string.
 106       * @param WP_Comment $comment              The comment object.
 107       */
 108      return apply_filters( 'get_comment_author_email', $comment->comment_author_email, $comment->comment_ID, $comment );
 109  }
 110  
 111  /**
 112   * Displays the email of the author of the current global $comment.
 113   *
 114   * Care should be taken to protect the email address and assure that email
 115   * harvesters do not capture your commenter's email address. Most assume that
 116   * their email address will not appear in raw form on the site. Doing so will
 117   * enable anyone, including those that people don't want to get the email
 118   * address and use it for their own means good and bad.
 119   *
 120   * @since 0.71
 121   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
 122   *
 123   * @param int|WP_Comment $comment_id Optional. WP_Comment or the ID of the comment for which to print the author's email.
 124   *                                   Default current comment.
 125   */
 126  function comment_author_email( $comment_id = 0 ) {
 127      $comment = get_comment( $comment_id );
 128  
 129      $comment_author_email = get_comment_author_email( $comment );
 130  
 131      /**
 132       * Filters the comment author's email for display.
 133       *
 134       * @since 1.2.0
 135       * @since 4.1.0 The `$comment_id` parameter was added.
 136       *
 137       * @param string $comment_author_email The comment author's email address.
 138       * @param string $comment_id           The comment ID as a numeric string.
 139       */
 140      echo apply_filters( 'author_email', $comment_author_email, $comment->comment_ID );
 141  }
 142  
 143  /**
 144   * Displays the HTML email link to the author of the current comment.
 145   *
 146   * Care should be taken to protect the email address and assure that email
 147   * harvesters do not capture your commenter's email address. Most assume that
 148   * their email address will not appear in raw form on the site. Doing so will
 149   * enable anyone, including those that people don't want to get the email
 150   * address and use it for their own means good and bad.
 151   *
 152   * @since 0.71
 153   * @since 4.6.0 Added the `$comment` parameter.
 154   *
 155   * @param string         $link_text Optional. Text to display instead of the comment author's email address.
 156   *                                  Default empty.
 157   * @param string         $before    Optional. Text or HTML to display before the email link. Default empty.
 158   * @param string         $after     Optional. Text or HTML to display after the email link. Default empty.
 159   * @param int|WP_Comment $comment   Optional. Comment ID or WP_Comment object. Default is the current comment.
 160   */
 161  function comment_author_email_link( $link_text = '', $before = '', $after = '', $comment = null ) {
 162      $link = get_comment_author_email_link( $link_text, $before, $after, $comment );
 163      if ( $link ) {
 164          echo $link;
 165      }
 166  }
 167  
 168  /**
 169   * Returns the HTML email link to the author of the current comment.
 170   *
 171   * Care should be taken to protect the email address and assure that email
 172   * harvesters do not capture your commenter's email address. Most assume that
 173   * their email address will not appear in raw form on the site. Doing so will
 174   * enable anyone, including those that people don't want to get the email
 175   * address and use it for their own means good and bad.
 176   *
 177   * @since 2.7.0
 178   * @since 4.6.0 Added the `$comment` parameter.
 179   *
 180   * @param string         $link_text Optional. Text to display instead of the comment author's email address.
 181   *                                  Default empty.
 182   * @param string         $before    Optional. Text or HTML to display before the email link. Default empty.
 183   * @param string         $after     Optional. Text or HTML to display after the email link. Default empty.
 184   * @param int|WP_Comment $comment   Optional. Comment ID or WP_Comment object. Default is the current comment.
 185   * @return string HTML markup for the comment author email link. By default, the email address is obfuscated
 186   *                via the {@see 'comment_email'} filter with antispambot().
 187   */
 188  function get_comment_author_email_link( $link_text = '', $before = '', $after = '', $comment = null ) {
 189      $comment = get_comment( $comment );
 190  
 191      /**
 192       * Filters the comment author's email for display.
 193       *
 194       * Care should be taken to protect the email address and assure that email
 195       * harvesters do not capture your commenter's email address.
 196       *
 197       * @since 1.2.0
 198       * @since 4.1.0 The `$comment` parameter was added.
 199       *
 200       * @param string     $comment_author_email The comment author's email address.
 201       * @param WP_Comment $comment              The comment object.
 202       */
 203      $comment_author_email = apply_filters( 'comment_email', $comment->comment_author_email, $comment );
 204  
 205      if ( ( ! empty( $comment_author_email ) ) && ( '@' !== $comment_author_email ) ) {
 206          $display = ( '' !== $link_text ) ? $link_text : $comment_author_email;
 207  
 208          $comment_author_email_link = $before . sprintf(
 209              '<a href="%1$s">%2$s</a>',
 210              esc_url( 'mailto:' . $comment_author_email ),
 211              esc_html( $display )
 212          ) . $after;
 213  
 214          return $comment_author_email_link;
 215      } else {
 216          return '';
 217      }
 218  }
 219  
 220  /**
 221   * Retrieves the HTML link to the URL of the author of the current comment.
 222   *
 223   * Both get_comment_author_url() and get_comment_author() rely on get_comment(),
 224   * which falls back to the global comment variable if the $comment_id argument is empty.
 225   *
 226   * @since 1.5.0
 227   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
 228   *
 229   * @param int|WP_Comment $comment_id Optional. WP_Comment or the ID of the comment for which to get the author's link.
 230   *                                   Default current comment.
 231   * @return string The comment author name or HTML link for author's URL.
 232   */
 233  function get_comment_author_link( $comment_id = 0 ) {
 234      $comment = get_comment( $comment_id );
 235  
 236      if ( ! empty( $comment->comment_ID ) ) {
 237          $comment_id = $comment->comment_ID;
 238      } elseif ( is_scalar( $comment_id ) ) {
 239          $comment_id = (string) $comment_id;
 240      } else {
 241          $comment_id = '0';
 242      }
 243  
 244      $comment_author_url = get_comment_author_url( $comment );
 245      $comment_author     = get_comment_author( $comment );
 246  
 247      if ( empty( $comment_author_url ) || 'http://' === $comment_author_url ) {
 248          $comment_author_link = $comment_author;
 249      } else {
 250          $rel_parts = array( 'ugc' );
 251          if ( ! wp_is_internal_link( $comment_author_url ) ) {
 252              $rel_parts = array_merge(
 253                  $rel_parts,
 254                  array( 'external', 'nofollow' )
 255              );
 256          }
 257  
 258          /**
 259           * Filters the rel attributes of the comment author's link.
 260           *
 261           * @since 6.2.0
 262           *
 263           * @param string[]   $rel_parts An array of strings representing the rel tags
 264           *                              which will be joined into the anchor's rel attribute.
 265           * @param WP_Comment $comment   The comment object.
 266           */
 267          $rel_parts = apply_filters( 'comment_author_link_rel', $rel_parts, $comment );
 268  
 269          $rel = implode( ' ', $rel_parts );
 270          $rel = esc_attr( $rel );
 271          // Empty space before 'rel' is necessary for later sprintf().
 272          $rel = ! empty( $rel ) ? sprintf( ' rel="%s"', $rel ) : '';
 273  
 274          $comment_author_link = sprintf(
 275              '<a href="%1$s" class="url"%2$s>%3$s</a>',
 276              $comment_author_url,
 277              $rel,
 278              $comment_author
 279          );
 280      }
 281  
 282      /**
 283       * Filters the comment author's link for display.
 284       *
 285       * @since 1.5.0
 286       * @since 4.1.0 The `$comment_author` and `$comment_id` parameters were added.
 287       *
 288       * @param string $comment_author_link The HTML-formatted comment author link.
 289       *                                    Empty for an invalid URL.
 290       * @param string $comment_author      The comment author's username.
 291       * @param string $comment_id          The comment ID as a numeric string.
 292       */
 293      return apply_filters( 'get_comment_author_link', $comment_author_link, $comment_author, $comment_id );
 294  }
 295  
 296  /**
 297   * Displays the HTML link to the URL of the author of the current comment.
 298   *
 299   * @since 0.71
 300   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
 301   *
 302   * @param int|WP_Comment $comment_id Optional. WP_Comment or the ID of the comment for which to print the author's link.
 303   *                                   Default current comment.
 304   */
 305  function comment_author_link( $comment_id = 0 ) {
 306      echo get_comment_author_link( $comment_id );
 307  }
 308  
 309  /**
 310   * Retrieves the IP address of the author of the current comment.
 311   *
 312   * @since 1.5.0
 313   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
 314   *
 315   * @param int|WP_Comment $comment_id Optional. WP_Comment or the ID of the comment for which to get the author's IP address.
 316   *                                   Default current comment.
 317   * @return string Comment author's IP address, or an empty string if it's not available.
 318   */
 319  function get_comment_author_IP( $comment_id = 0 ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid
 320      $comment = get_comment( $comment_id );
 321  
 322      /**
 323       * Filters the comment author's returned IP address.
 324       *
 325       * @since 1.5.0
 326       * @since 4.1.0 The `$comment_id` and `$comment` parameters were added.
 327       *
 328       * @param string     $comment_author_ip The comment author's IP address, or an empty string if it's not available.
 329       * @param string     $comment_id        The comment ID as a numeric string.
 330       * @param WP_Comment $comment           The comment object.
 331       */
 332      return apply_filters( 'get_comment_author_IP', $comment->comment_author_IP, $comment->comment_ID, $comment );  // phpcs:ignore WordPress.NamingConventions.ValidHookName.NotLowercase
 333  }
 334  
 335  /**
 336   * Displays the IP address of the author of the current comment.
 337   *
 338   * @since 0.71
 339   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
 340   *
 341   * @param int|WP_Comment $comment_id Optional. WP_Comment or the ID of the comment for which to print the author's IP address.
 342   *                                   Default current comment.
 343   */
 344  function comment_author_IP( $comment_id = 0 ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid
 345      echo esc_html( get_comment_author_IP( $comment_id ) );
 346  }
 347  
 348  /**
 349   * Retrieves the URL of the author of the current comment, not linked.
 350   *
 351   * @since 1.5.0
 352   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
 353   *
 354   * @param int|WP_Comment $comment_id Optional. WP_Comment or the ID of the comment for which to get the author's URL.
 355   *                                   Default current comment.
 356   * @return string Comment author URL, if provided, an empty string otherwise.
 357   */
 358  function get_comment_author_url( $comment_id = 0 ) {
 359      $comment = get_comment( $comment_id );
 360  
 361      $comment_author_url = '';
 362      $comment_id         = 0;
 363  
 364      if ( ! empty( $comment ) ) {
 365          $comment_author_url = ( 'http://' === $comment->comment_author_url ) ? '' : $comment->comment_author_url;
 366          $comment_author_url = esc_url( $comment_author_url, array( 'http', 'https' ) );
 367  
 368          $comment_id = $comment->comment_ID;
 369      }
 370  
 371      /**
 372       * Filters the comment author's URL.
 373       *
 374       * @since 1.5.0
 375       * @since 4.1.0 The `$comment_id` and `$comment` parameters were added.
 376       *
 377       * @param string          $comment_author_url The comment author's URL, or an empty string.
 378       * @param string|int      $comment_id         The comment ID as a numeric string, or 0 if not found.
 379       * @param WP_Comment|null $comment            The comment object, or null if not found.
 380       */
 381      return apply_filters( 'get_comment_author_url', $comment_author_url, $comment_id, $comment );
 382  }
 383  
 384  /**
 385   * Displays the URL of the author of the current comment, not linked.
 386   *
 387   * @since 0.71
 388   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
 389   *
 390   * @param int|WP_Comment $comment_id Optional. WP_Comment or the ID of the comment for which to print the author's URL.
 391   *                                   Default current comment.
 392   */
 393  function comment_author_url( $comment_id = 0 ) {
 394      $comment = get_comment( $comment_id );
 395  
 396      $comment_author_url = get_comment_author_url( $comment );
 397  
 398      /**
 399       * Filters the comment author's URL for display.
 400       *
 401       * @since 1.2.0
 402       * @since 4.1.0 The `$comment_id` parameter was added.
 403       *
 404       * @param string $comment_author_url The comment author's URL.
 405       * @param string $comment_id         The comment ID as a numeric string.
 406       */
 407      echo apply_filters( 'comment_url', $comment_author_url, $comment->comment_ID );
 408  }
 409  
 410  /**
 411   * Retrieves the HTML link of the URL of the author of the current comment.
 412   *
 413   * $link_text parameter is only used if the URL does not exist for the comment
 414   * author. If the URL does exist then the URL will be used and the $link_text
 415   * will be ignored.
 416   *
 417   * Encapsulate the HTML link between the $before and $after. So it will appear
 418   * in the order of $before, link, and finally $after.
 419   *
 420   * @since 1.5.0
 421   * @since 4.6.0 Added the `$comment` parameter.
 422   *
 423   * @param string         $link_text Optional. The text to display instead of the comment
 424   *                                  author's email address. Default empty.
 425   * @param string         $before    Optional. The text or HTML to display before the email link.
 426   *                                  Default empty.
 427   * @param string         $after     Optional. The text or HTML to display after the email link.
 428   *                                  Default empty.
 429   * @param int|WP_Comment $comment   Optional. Comment ID or WP_Comment object.
 430   *                                  Default is the current comment.
 431   * @return string The HTML link between the $before and $after parameters.
 432   */
 433  function get_comment_author_url_link( $link_text = '', $before = '', $after = '', $comment = 0 ) {
 434      $comment_author_url = get_comment_author_url( $comment );
 435  
 436      $display = ( '' !== $link_text ) ? $link_text : $comment_author_url;
 437      $display = str_replace( 'http://www.', '', $display );
 438      $display = str_replace( 'http://', '', $display );
 439  
 440      if ( str_ends_with( $display, '/' ) ) {
 441          $display = substr( $display, 0, -1 );
 442      }
 443  
 444      $comment_author_url_link = $before . sprintf(
 445          '<a href="%1$s" rel="external">%2$s</a>',
 446          $comment_author_url,
 447          $display
 448      ) . $after;
 449  
 450      /**
 451       * Filters the comment author's returned URL link.
 452       *
 453       * @since 1.5.0
 454       *
 455       * @param string $comment_author_url_link The HTML-formatted comment author URL link.
 456       */
 457      return apply_filters( 'get_comment_author_url_link', $comment_author_url_link );
 458  }
 459  
 460  /**
 461   * Displays the HTML link of the URL of the author of the current comment.
 462   *
 463   * @since 0.71
 464   * @since 4.6.0 Added the `$comment` parameter.
 465   *
 466   * @param string         $link_text Optional. Text to display instead of the comment author's
 467   *                                  email address. Default empty.
 468   * @param string         $before    Optional. Text or HTML to display before the email link.
 469   *                                  Default empty.
 470   * @param string         $after     Optional. Text or HTML to display after the email link.
 471   *                                  Default empty.
 472   * @param int|WP_Comment $comment   Optional. Comment ID or WP_Comment object.
 473   *                                  Default is the current comment.
 474   */
 475  function comment_author_url_link( $link_text = '', $before = '', $after = '', $comment = 0 ) {
 476      echo get_comment_author_url_link( $link_text, $before, $after, $comment );
 477  }
 478  
 479  /**
 480   * Generates semantic classes for each comment element.
 481   *
 482   * @since 2.7.0
 483   * @since 4.4.0 Added the ability for `$comment` to also accept a WP_Comment object.
 484   *
 485   * @param string|string[] $css_class Optional. One or more classes to add to the class list.
 486   *                                   Default empty.
 487   * @param int|WP_Comment  $comment   Optional. Comment ID or WP_Comment object. Default current comment.
 488   * @param int|WP_Post     $post      Optional. Post ID or WP_Post object. Default current post.
 489   * @param bool            $display   Optional. Whether to print or return the output.
 490   *                                   Default true.
 491   * @return string|void Comment classes if `$display` is false, nothing otherwise.
 492   * @phpstan-return ( $display is true ? void : string )
 493   */
 494  function comment_class( $css_class = '', $comment = null, $post = null, $display = true ) {
 495      // Separates classes with a single space, collates classes for comment DIV.
 496      $css_class = 'class="' . implode( ' ', get_comment_class( $css_class, $comment, $post ) ) . '"';
 497  
 498      if ( $display ) {
 499          echo $css_class;
 500      } else {
 501          return $css_class;
 502      }
 503  }
 504  
 505  /**
 506   * Returns the classes for the comment div as an array.
 507   *
 508   * @since 2.7.0
 509   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
 510   *
 511   * @global int $comment_alt
 512   * @global int $comment_depth
 513   * @global int $comment_thread_alt
 514   *
 515   * @param string|string[] $css_class  Optional. One or more classes to add to the class list.
 516   *                                    Default empty.
 517   * @param int|WP_Comment  $comment_id Optional. Comment ID or WP_Comment object. Default current comment.
 518   * @param int|WP_Post     $post       Optional. Post ID or WP_Post object. Default current post.
 519   * @return string[] An array of classes.
 520   */
 521  function get_comment_class( $css_class = '', $comment_id = null, $post = null ) {
 522      global $comment_alt, $comment_depth, $comment_thread_alt;
 523  
 524      $classes = array();
 525  
 526      $comment = get_comment( $comment_id );
 527      if ( ! $comment ) {
 528          return $classes;
 529      }
 530  
 531      // Get the comment type (comment, trackback).
 532      $classes[] = ( empty( $comment->comment_type ) ) ? 'comment' : $comment->comment_type;
 533  
 534      // Add classes for comment authors that are registered users.
 535      $user = $comment->user_id ? get_userdata( $comment->user_id ) : false;
 536      if ( $user ) {
 537          $classes[] = 'byuser';
 538          $classes[] = 'comment-author-' . sanitize_html_class( $user->user_nicename, $comment->user_id );
 539          // For comment authors who are the author of the post.
 540          $_post = get_post( $post );
 541          if ( $_post ) {
 542              if ( $comment->user_id === $_post->post_author ) {
 543                  $classes[] = 'bypostauthor';
 544              }
 545          }
 546      }
 547  
 548      if ( empty( $comment_alt ) ) {
 549          $comment_alt = 0;
 550      }
 551      if ( empty( $comment_depth ) ) {
 552          $comment_depth = 1;
 553      }
 554      if ( empty( $comment_thread_alt ) ) {
 555          $comment_thread_alt = 0;
 556      }
 557  
 558      if ( $comment_alt % 2 ) {
 559          $classes[] = 'odd';
 560          $classes[] = 'alt';
 561      } else {
 562          $classes[] = 'even';
 563      }
 564  
 565      ++$comment_alt;
 566  
 567      // Alt for top-level comments.
 568      if ( 1 === $comment_depth ) {
 569          if ( $comment_thread_alt % 2 ) {
 570              $classes[] = 'thread-odd';
 571              $classes[] = 'thread-alt';
 572          } else {
 573              $classes[] = 'thread-even';
 574          }
 575          ++$comment_thread_alt;
 576      }
 577  
 578      $classes[] = "depth-$comment_depth";
 579  
 580      if ( ! empty( $css_class ) ) {
 581          if ( ! is_array( $css_class ) ) {
 582              $css_class = preg_split( '#\s+#', $css_class );
 583          }
 584          $classes = array_merge( $classes, $css_class );
 585      }
 586  
 587      $classes = array_map( 'esc_attr', $classes );
 588  
 589      /**
 590       * Filters the returned CSS classes for the current comment.
 591       *
 592       * @since 2.7.0
 593       *
 594       * @param string[]    $classes    An array of comment classes.
 595       * @param string[]    $css_class  An array of additional classes added to the list.
 596       * @param string      $comment_id The comment ID as a numeric string.
 597       * @param WP_Comment  $comment    The comment object.
 598       * @param int|WP_Post $post       The post ID or WP_Post object.
 599       */
 600      return apply_filters( 'comment_class', $classes, $css_class, $comment->comment_ID, $comment, $post );
 601  }
 602  
 603  /**
 604   * Retrieves the comment date of the current comment.
 605   *
 606   * @since 1.5.0
 607   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
 608   *
 609   * @param string         $format     Optional. PHP date format. Defaults to the 'date_format' option.
 610   * @param int|WP_Comment $comment_id Optional. WP_Comment or ID of the comment for which to get the date.
 611   *                                   Default current comment.
 612   * @return string The comment's date.
 613   */
 614  function get_comment_date( $format = '', $comment_id = 0 ) {
 615      $comment = get_comment( $comment_id );
 616  
 617      $_format = ! empty( $format ) ? $format : get_option( 'date_format' );
 618  
 619      $comment_date = mysql2date( $_format, $comment->comment_date );
 620  
 621      /**
 622       * Filters the returned comment date.
 623       *
 624       * @since 1.5.0
 625       *
 626       * @param string|int $comment_date Formatted date string or Unix timestamp.
 627       * @param string     $format       PHP date format.
 628       * @param WP_Comment $comment      The comment object.
 629       */
 630      return apply_filters( 'get_comment_date', $comment_date, $format, $comment );
 631  }
 632  
 633  /**
 634   * Displays the comment date of the current comment.
 635   *
 636   * @since 0.71
 637   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
 638   *
 639   * @param string         $format     Optional. PHP date format. Defaults to the 'date_format' option.
 640   * @param int|WP_Comment $comment_id WP_Comment or ID of the comment for which to print the date.
 641   *                                   Default current comment.
 642   */
 643  function comment_date( $format = '', $comment_id = 0 ) {
 644      echo get_comment_date( $format, $comment_id );
 645  }
 646  
 647  /**
 648   * Retrieves the excerpt of the given comment.
 649   *
 650   * Returns a maximum of 20 words with an ellipsis appended if necessary.
 651   *
 652   * @since 1.5.0
 653   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
 654   *
 655   * @param int|WP_Comment $comment_id Optional. WP_Comment or ID of the comment for which to get the excerpt.
 656   *                                   Default current comment.
 657   * @return string The possibly truncated comment excerpt.
 658   */
 659  function get_comment_excerpt( $comment_id = 0 ) {
 660      $comment = get_comment( $comment_id );
 661  
 662      if ( ! post_password_required( $comment->comment_post_ID ) ) {
 663          $comment_text = strip_tags( str_replace( array( "\n", "\r" ), ' ', $comment->comment_content ) );
 664      } else {
 665          $comment_text = __( 'Password protected' );
 666      }
 667  
 668      /* translators: Maximum number of words used in a comment excerpt. */
 669      $comment_excerpt_length = (int) _x( '20', 'comment_excerpt_length' );
 670  
 671      /**
 672       * Filters the maximum number of words used in the comment excerpt.
 673       *
 674       * @since 4.4.0
 675       *
 676       * @param int $comment_excerpt_length The amount of words you want to display in the comment excerpt.
 677       */
 678      $comment_excerpt_length = apply_filters( 'comment_excerpt_length', $comment_excerpt_length );
 679  
 680      $comment_excerpt = wp_trim_words( $comment_text, $comment_excerpt_length, '&hellip;' );
 681  
 682      /**
 683       * Filters the retrieved comment excerpt.
 684       *
 685       * @since 1.5.0
 686       * @since 4.1.0 The `$comment_id` and `$comment` parameters were added.
 687       *
 688       * @param string     $comment_excerpt The comment excerpt text.
 689       * @param string     $comment_id      The comment ID as a numeric string.
 690       * @param WP_Comment $comment         The comment object.
 691       */
 692      return apply_filters( 'get_comment_excerpt', $comment_excerpt, $comment->comment_ID, $comment );
 693  }
 694  
 695  /**
 696   * Displays the excerpt of the current comment.
 697   *
 698   * @since 1.2.0
 699   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
 700   *
 701   * @param int|WP_Comment $comment_id Optional. WP_Comment or ID of the comment for which to print the excerpt.
 702   *                                   Default current comment.
 703   */
 704  function comment_excerpt( $comment_id = 0 ) {
 705      $comment = get_comment( $comment_id );
 706  
 707      $comment_excerpt = get_comment_excerpt( $comment );
 708  
 709      /**
 710       * Filters the comment excerpt for display.
 711       *
 712       * @since 1.2.0
 713       * @since 4.1.0 The `$comment_id` parameter was added.
 714       *
 715       * @param string $comment_excerpt The comment excerpt text.
 716       * @param string $comment_id      The comment ID as a numeric string.
 717       */
 718      echo apply_filters( 'comment_excerpt', $comment_excerpt, $comment->comment_ID );
 719  }
 720  
 721  /**
 722   * Retrieves the comment ID of the current comment.
 723   *
 724   * @since 1.5.0
 725   *
 726   * @return string The comment ID as a numeric string.
 727   */
 728  function get_comment_ID() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid
 729      $comment = get_comment();
 730  
 731      $comment_id = ! empty( $comment->comment_ID ) ? $comment->comment_ID : '0';
 732  
 733      /**
 734       * Filters the returned comment ID.
 735       *
 736       * @since 1.5.0
 737       * @since 4.1.0 The `$comment` parameter was added.
 738       *
 739       * @param string     $comment_id The current comment ID as a numeric string.
 740       * @param WP_Comment $comment    The comment object.
 741       */
 742      return apply_filters( 'get_comment_ID', $comment_id, $comment );  // phpcs:ignore WordPress.NamingConventions.ValidHookName.NotLowercase
 743  }
 744  
 745  /**
 746   * Displays the comment ID of the current comment.
 747   *
 748   * @since 0.71
 749   */
 750  function comment_ID() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid
 751      echo get_comment_ID();
 752  }
 753  
 754  /**
 755   * Retrieves the link to a given comment.
 756   *
 757   * @since 1.5.0
 758   * @since 4.4.0 Added the ability for `$comment` to also accept a WP_Comment object. Added `$cpage` argument.
 759   *
 760   * @see get_page_of_comment()
 761   *
 762   * @global WP_Rewrite $wp_rewrite      WordPress rewrite component.
 763   * @global bool       $in_comment_loop
 764   *
 765   * @param WP_Comment|int|null $comment Optional. Comment to retrieve. Default current comment.
 766   * @param array               $args {
 767   *     An array of optional arguments to override the defaults.
 768   *
 769   *     @type string     $type      Passed to get_page_of_comment().
 770   *     @type int        $page      Current page of comments, for calculating comment pagination.
 771   *     @type int        $per_page  Per-page value for comment pagination.
 772   *     @type int        $max_depth Passed to get_page_of_comment().
 773   *     @type int|string $cpage     Value to use for the comment's "comment-page" or "cpage" value.
 774   *                                 If provided, this value overrides any value calculated from `$page`
 775   *                                 and `$per_page`.
 776   * }
 777   * @return string The permalink to the given comment.
 778   */
 779  function get_comment_link( $comment = null, $args = array() ) {
 780      global $wp_rewrite, $in_comment_loop;
 781  
 782      $comment = get_comment( $comment );
 783  
 784      // Back-compat.
 785      if ( ! is_array( $args ) ) {
 786          $args = array( 'page' => $args );
 787      }
 788  
 789      $defaults = array(
 790          'type'      => 'all',
 791          'page'      => '',
 792          'per_page'  => '',
 793          'max_depth' => '',
 794          'cpage'     => null,
 795      );
 796  
 797      $args = wp_parse_args( $args, $defaults );
 798  
 799      $comment_link = get_permalink( $comment->comment_post_ID );
 800  
 801      // The 'cpage' param takes precedence.
 802      if ( ! is_null( $args['cpage'] ) ) {
 803          $cpage = $args['cpage'];
 804  
 805          // No 'cpage' is provided, so we calculate one.
 806      } else {
 807          if ( '' === $args['per_page'] && get_option( 'page_comments' ) ) {
 808              $args['per_page'] = get_option( 'comments_per_page' );
 809          }
 810  
 811          if ( empty( $args['per_page'] ) ) {
 812              $args['per_page'] = 0;
 813              $args['page']     = 0;
 814          }
 815  
 816          $cpage = $args['page'];
 817  
 818          if ( '' === $cpage ) {
 819              if ( ! empty( $in_comment_loop ) ) {
 820                  $cpage = (int) get_query_var( 'cpage' );
 821              } else {
 822                  // Requires a database hit, so we only do it when we can't figure out from context.
 823                  $cpage = get_page_of_comment( $comment->comment_ID, $args );
 824              }
 825          }
 826  
 827          /*
 828           * If the default page displays the oldest comments, the permalinks for comments on the default page
 829           * do not need a 'cpage' query var.
 830           */
 831          if ( 'oldest' === get_option( 'default_comments_page' ) && 1 === $cpage ) {
 832              $cpage = '';
 833          }
 834      }
 835  
 836      if ( $cpage && get_option( 'page_comments' ) ) {
 837          if ( $wp_rewrite->using_permalinks() ) {
 838              $comment_link = trailingslashit( $comment_link ) . $wp_rewrite->comments_pagination_base . '-' . $cpage;
 839          } else {
 840              $comment_link = add_query_arg( 'cpage', $cpage, $comment_link );
 841          }
 842      }
 843  
 844      if ( $wp_rewrite->using_permalinks() ) {
 845          $comment_link = user_trailingslashit( $comment_link, 'comment' );
 846      }
 847  
 848      $comment_link = $comment_link . '#comment-' . $comment->comment_ID;
 849  
 850      /**
 851       * Filters the returned single comment permalink.
 852       *
 853       * @since 2.8.0
 854       * @since 4.4.0 Added the `$cpage` parameter.
 855       *
 856       * @see get_page_of_comment()
 857       *
 858       * @param string     $comment_link The comment permalink with '#comment-$id' appended.
 859       * @param WP_Comment $comment      The current comment object.
 860       * @param array      $args         An array of arguments to override the defaults.
 861       * @param int        $cpage        The calculated 'cpage' value.
 862       */
 863      return apply_filters( 'get_comment_link', $comment_link, $comment, $args, $cpage );
 864  }
 865  
 866  /**
 867   * Retrieves the link to the current post comments.
 868   *
 869   * @since 1.5.0
 870   *
 871   * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
 872   * @return string The link to the comments.
 873   */
 874  function get_comments_link( $post = 0 ) {
 875      $hash          = get_comments_number( $post ) ? '#comments' : '#respond';
 876      $comments_link = get_permalink( $post ) . $hash;
 877  
 878      /**
 879       * Filters the returned post comments permalink.
 880       *
 881       * @since 3.6.0
 882       *
 883       * @param string      $comments_link Post comments permalink with '#comments' appended.
 884       * @param int|WP_Post $post          Post ID or WP_Post object.
 885       */
 886      return apply_filters( 'get_comments_link', $comments_link, $post );
 887  }
 888  
 889  /**
 890   * Displays the link to the current post comments.
 891   *
 892   * @since 0.71
 893   *
 894   * @param string $deprecated   Not Used.
 895   * @param string $deprecated_2 Not Used.
 896   */
 897  function comments_link( $deprecated = '', $deprecated_2 = '' ) {
 898      if ( ! empty( $deprecated ) ) {
 899          _deprecated_argument( __FUNCTION__, '0.72' );
 900      }
 901      if ( ! empty( $deprecated_2 ) ) {
 902          _deprecated_argument( __FUNCTION__, '1.3.0' );
 903      }
 904      echo esc_url( get_comments_link() );
 905  }
 906  
 907  /**
 908   * Retrieves the amount of comments a post has.
 909   *
 910   * @since 1.5.0
 911   *
 912   * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is the global `$post`.
 913   * @return string|int If the post exists, a numeric string representing the number of comments
 914   *                    the post has, otherwise 0.
 915   */
 916  function get_comments_number( $post = 0 ) {
 917      $post = get_post( $post );
 918  
 919      $comments_number = $post ? $post->comment_count : 0;
 920      $post_id         = $post ? $post->ID : 0;
 921  
 922      /**
 923       * Filters the returned comment count for a post.
 924       *
 925       * @since 1.5.0
 926       *
 927       * @param string|int $comments_number A string representing the number of comments a post has, otherwise 0.
 928       * @param int        $post_id         Post ID.
 929       */
 930      return apply_filters( 'get_comments_number', $comments_number, $post_id );
 931  }
 932  
 933  /**
 934   * Displays the language string for the number of comments the current post has.
 935   *
 936   * @since 0.71
 937   * @since 5.4.0 The `$deprecated` parameter was changed to `$post`.
 938   *
 939   * @param string|false $zero Optional. Text for no comments. Default false.
 940   * @param string|false $one  Optional. Text for one comment. Default false.
 941   * @param string|false $more Optional. Text for more than one comment. Default false.
 942   * @param int|WP_Post  $post Optional. Post ID or WP_Post object. Default is the global `$post`.
 943   */
 944  function comments_number( $zero = false, $one = false, $more = false, $post = 0 ) {
 945      echo get_comments_number_text( $zero, $one, $more, $post );
 946  }
 947  
 948  /**
 949   * Displays the language string for the number of comments the current post has.
 950   *
 951   * @since 4.0.0
 952   * @since 5.4.0 Added the `$post` parameter to allow using the function outside of the loop.
 953   *
 954   * @param string|false $zero Optional. Text for no comments. Default false.
 955   * @param string|false $one  Optional. Text for one comment. Default false.
 956   * @param string|false $more Optional. Text for more than one comment. Default false.
 957   * @param int|WP_Post  $post Optional. Post ID or WP_Post object. Default is the global `$post`.
 958   * @return string Language string for the number of comments a post has.
 959   */
 960  function get_comments_number_text( $zero = false, $one = false, $more = false, $post = 0 ) {
 961      $comments_number = (int) get_comments_number( $post );
 962  
 963      if ( $comments_number > 1 ) {
 964          if ( false === $more ) {
 965              $comments_number_text = sprintf(
 966                  /* translators: %s: Number of comments. */
 967                  _n( '%s Comment', '%s Comments', $comments_number ),
 968                  number_format_i18n( $comments_number )
 969              );
 970          } else {
 971              // % Comments
 972              /*
 973               * translators: If comment number in your language requires declension,
 974               * translate this to 'on'. Do not translate into your own language.
 975               */
 976              if ( 'on' === _x( 'off', 'Comment number declension: on or off' ) ) {
 977                  $text = preg_replace( '#<span class="screen-reader-text">.+?</span>#', '', $more );
 978                  $text = preg_replace( '/&.+?;/', '', $text ); // Remove HTML entities.
 979                  $text = trim( strip_tags( $text ), '% ' );
 980  
 981                  // Replace '% Comments' with a proper plural form.
 982                  if ( $text && ! preg_match( '/[0-9]+/', $text ) && str_contains( $more, '%' ) ) {
 983                      /* translators: %s: Number of comments. */
 984                      $new_text = _n( '%s Comment', '%s Comments', $comments_number );
 985                      $new_text = trim( sprintf( $new_text, '' ) );
 986  
 987                      $more = str_replace( $text, $new_text, $more );
 988                      if ( ! str_contains( $more, '%' ) ) {
 989                          $more = '% ' . $more;
 990                      }
 991                  }
 992              }
 993  
 994              $comments_number_text = str_replace( '%', number_format_i18n( $comments_number ), $more );
 995          }
 996      } elseif ( 0 === $comments_number ) {
 997          $comments_number_text = ( false === $zero ) ? __( 'No Comments' ) : $zero;
 998      } else { // Must be one.
 999          $comments_number_text = ( false === $one ) ? __( '1 Comment' ) : $one;
1000      }
1001  
1002      /**
1003       * Filters the comments count for display.
1004       *
1005       * @since 1.5.0
1006       *
1007       * @see _n()
1008       *
1009       * @param string $comments_number_text A translatable string formatted based on whether the count
1010       *                                     is equal to 0, 1, or 1+.
1011       * @param int    $comments_number      The number of post comments.
1012       */
1013      return apply_filters( 'comments_number', $comments_number_text, $comments_number );
1014  }
1015  
1016  /**
1017   * Retrieves the text of the current comment.
1018   *
1019   * @since 1.5.0
1020   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
1021   * @since 5.4.0 Added 'In reply to %s.' prefix to child comments in comments feed.
1022   *
1023   * @see Walker_Comment::comment()
1024   *
1025   * @param int|WP_Comment $comment_id Optional. WP_Comment or ID of the comment for which to get the text.
1026   *                                   Default current comment.
1027   * @param array          $args       Optional. An array of arguments. Default empty array.
1028   * @return string The comment content.
1029   */
1030  function get_comment_text( $comment_id = 0, $args = array() ) {
1031      $comment = get_comment( $comment_id );
1032  
1033      $comment_text = $comment->comment_content;
1034  
1035      if ( is_comment_feed() && $comment->comment_parent ) {
1036          $parent = get_comment( $comment->comment_parent );
1037          if ( $parent ) {
1038              $parent_link = esc_url( get_comment_link( $parent ) );
1039              $name        = get_comment_author( $parent );
1040  
1041              $comment_text = sprintf(
1042                  /* translators: %s: Comment link. */
1043                  ent2ncr( __( 'In reply to %s.' ) ),
1044                  '<a href="' . $parent_link . '">' . $name . '</a>'
1045              ) . "\n\n" . $comment_text;
1046          }
1047      }
1048  
1049      /**
1050       * Filters the text of a comment.
1051       *
1052       * @since 1.5.0
1053       *
1054       * @see Walker_Comment::comment()
1055       *
1056       * @param string     $comment_text Text of the comment.
1057       * @param WP_Comment $comment      The comment object.
1058       * @param array      $args         An array of arguments.
1059       */
1060      return apply_filters( 'get_comment_text', $comment_text, $comment, $args );
1061  }
1062  
1063  /**
1064   * Displays the text of the current comment.
1065   *
1066   * @since 0.71
1067   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
1068   *
1069   * @see Walker_Comment::comment()
1070   *
1071   * @param int|WP_Comment $comment_id Optional. WP_Comment or ID of the comment for which to print the text.
1072   *                                   Default current comment.
1073   * @param array          $args       Optional. An array of arguments. Default empty array.
1074   */
1075  function comment_text( $comment_id = 0, $args = array() ) {
1076      $comment = get_comment( $comment_id );
1077  
1078      $comment_text = get_comment_text( $comment, $args );
1079  
1080      /**
1081       * Filters the text of a comment to be displayed.
1082       *
1083       * @since 1.2.0
1084       *
1085       * @see Walker_Comment::comment()
1086       *
1087       * @param string          $comment_text Text of the comment.
1088       * @param WP_Comment|null $comment      The comment object. Null if not found.
1089       * @param array           $args         An array of arguments.
1090       */
1091      echo apply_filters( 'comment_text', $comment_text, $comment, $args );
1092  }
1093  
1094  /**
1095   * Retrieves the comment time of the current comment.
1096   *
1097   * @since 1.5.0
1098   * @since 6.2.0 Added the `$comment_id` parameter.
1099   *
1100   * @param string         $format     Optional. PHP date format. Defaults to the 'time_format' option.
1101   * @param bool           $gmt        Optional. Whether to use the GMT date. Default false.
1102   * @param bool           $translate  Optional. Whether to translate the time (for use in feeds).
1103   *                                   Default true.
1104   * @param int|WP_Comment $comment_id Optional. WP_Comment or ID of the comment for which to get the time.
1105   *                                   Default current comment.
1106   * @return string The formatted time.
1107   */
1108  function get_comment_time( $format = '', $gmt = false, $translate = true, $comment_id = 0 ) {
1109      $comment = get_comment( $comment_id );
1110  
1111      if ( null === $comment ) {
1112          return '';
1113      }
1114  
1115      $comment_date = $gmt ? $comment->comment_date_gmt : $comment->comment_date;
1116  
1117      $_format = ! empty( $format ) ? $format : get_option( 'time_format' );
1118  
1119      $comment_time = mysql2date( $_format, $comment_date, $translate );
1120  
1121      /**
1122       * Filters the returned comment time.
1123       *
1124       * @since 1.5.0
1125       *
1126       * @param string|int $comment_time The comment time, formatted as a date string or Unix timestamp.
1127       * @param string     $format       PHP date format.
1128       * @param bool       $gmt          Whether the GMT date is in use.
1129       * @param bool       $translate    Whether the time is translated.
1130       * @param WP_Comment $comment      The comment object.
1131       */
1132      return apply_filters( 'get_comment_time', $comment_time, $format, $gmt, $translate, $comment );
1133  }
1134  
1135  /**
1136   * Displays the comment time of the current comment.
1137   *
1138   * @since 0.71
1139   * @since 6.2.0 Added the `$comment_id` parameter.
1140   *
1141   * @param string         $format     Optional. PHP time format. Defaults to the 'time_format' option.
1142   * @param int|WP_Comment $comment_id Optional. WP_Comment or ID of the comment for which to print the time.
1143   *                                   Default current comment.
1144   */
1145  function comment_time( $format = '', $comment_id = 0 ) {
1146      echo get_comment_time( $format, false, true, $comment_id );
1147  }
1148  
1149  /**
1150   * Retrieves the comment type of the current comment.
1151   *
1152   * @since 1.5.0
1153   * @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.
1154   *
1155   * @param int|WP_Comment $comment_id Optional. WP_Comment or ID of the comment for which to get the type.
1156   *                                   Default current comment.
1157   * @return string The comment type.
1158   */
1159  function get_comment_type( $comment_id = 0 ) {
1160      $comment = get_comment( $comment_id );
1161  
1162      if ( '' === $comment->comment_type ) {
1163          $comment->comment_type = 'comment';
1164      }
1165  
1166      /**
1167       * Filters the returned comment type.
1168       *
1169       * @since 1.5.0
1170       * @since 4.1.0 The `$comment_id` and `$comment` parameters were added.
1171       *
1172       * @param string     $comment_type The type of comment, such as 'comment', 'pingback', or 'trackback'.
1173       * @param string     $comment_id   The comment ID as a numeric string.
1174       * @param WP_Comment $comment      The comment object.
1175       */
1176      return apply_filters( 'get_comment_type', $comment->comment_type, $comment->comment_ID, $comment );
1177  }
1178  
1179  /**
1180   * Displays the comment type of the current comment.
1181   *
1182   * @since 0.71
1183   *
1184   * @param string|false $comment_text   Optional. String to display for comment type. Default false.
1185   * @param string|false $trackback_text Optional. String to display for trackback type. Default false.
1186   * @param string|false $pingback_text  Optional. String to display for pingback type. Default false.
1187   */
1188  function comment_type( $comment_text = false, $trackback_text = false, $pingback_text = false ) {
1189      if ( false === $comment_text ) {
1190          $comment_text = _x( 'Comment', 'noun' );
1191      }
1192      if ( false === $trackback_text ) {
1193          $trackback_text = __( 'Trackback' );
1194      }
1195      if ( false === $pingback_text ) {
1196          $pingback_text = __( 'Pingback' );
1197      }
1198      $type = get_comment_type();
1199      switch ( $type ) {
1200          case 'trackback':
1201              echo $trackback_text;
1202              break;
1203          case 'pingback':
1204              echo $pingback_text;
1205              break;
1206          default:
1207              echo $comment_text;
1208      }
1209  }
1210  
1211  /**
1212   * Retrieves the current post's trackback URL.
1213   *
1214   * There is a check to see if permalink's have been enabled and if so, will
1215   * retrieve the pretty path. If permalinks weren't enabled, the ID of the
1216   * current post is used and appended to the correct page to go to.
1217   *
1218   * @since 1.5.0
1219   *
1220   * @return string The trackback URL after being filtered.
1221   */
1222  function get_trackback_url() {
1223      if ( get_option( 'permalink_structure' ) ) {
1224          $trackback_url = trailingslashit( get_permalink() ) . user_trailingslashit( 'trackback', 'single_trackback' );
1225      } else {
1226          $trackback_url = get_option( 'siteurl' ) . '/wp-trackback.php?p=' . get_the_ID();
1227      }
1228  
1229      /**
1230       * Filters the returned trackback URL.
1231       *
1232       * @since 2.2.0
1233       *
1234       * @param string $trackback_url The trackback URL.
1235       */
1236      return apply_filters( 'trackback_url', $trackback_url );
1237  }
1238  
1239  /**
1240   * Displays the current post's trackback URL.
1241   *
1242   * @since 0.71
1243   * @since 2.5.0 Deprecated the `$deprecated_echo` argument.
1244   *
1245   * @see get_trackback_url()
1246   *
1247   * @param true $deprecated_echo Deprecated. Use {@see get_trackback_url()}. Echo the URL or
1248   *                              return it. Default true.
1249   * @return string|void The trackback URL when `$deprecated_echo` is false, nothing otherwise.
1250   * @phpstan-return ( $deprecated_echo is true ? void : string )
1251   *
1252   * @phpstan-ignore conditionalType.alwaysTrue (Typed `true` to flag the deprecated argument.)
1253   */
1254  function trackback_url( $deprecated_echo = true ) {
1255      if ( true !== $deprecated_echo ) {
1256          _deprecated_argument(
1257              __FUNCTION__,
1258              '2.5.0',
1259              sprintf(
1260                  /* translators: %s: get_trackback_url() */
1261                  __( 'Use %s instead if you do not want the value echoed.' ),
1262                  '<code>get_trackback_url()</code>'
1263              )
1264          );
1265      }
1266  
1267      if ( $deprecated_echo ) {
1268          echo get_trackback_url();
1269      } else {
1270          return get_trackback_url();
1271      }
1272  }
1273  
1274  /**
1275   * Generates and displays the RDF for the trackback information of current post.
1276   *
1277   * Deprecated in 3.0.0, and restored in 3.0.1.
1278   *
1279   * @since 0.71
1280   *
1281   * @param int|string $deprecated Not used (Was $timezone = 0).
1282   */
1283  function trackback_rdf( $deprecated = '' ) {
1284      if ( ! empty( $deprecated ) ) {
1285          _deprecated_argument( __FUNCTION__, '2.5.0' );
1286      }
1287  
1288      if ( isset( $_SERVER['HTTP_USER_AGENT'] ) && false !== stripos( $_SERVER['HTTP_USER_AGENT'], 'W3C_Validator' ) ) {
1289          return;
1290      }
1291  
1292      echo '<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
1293              xmlns:dc="http://purl.org/dc/elements/1.1/"
1294              xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/">
1295          <rdf:Description rdf:about="';
1296      the_permalink();
1297      echo '"' . "\n";
1298      echo '    dc:identifier="';
1299      the_permalink();
1300      echo '"' . "\n";
1301      echo '    dc:title="' . str_replace( '--', '&#x2d;&#x2d;', wptexturize( strip_tags( get_the_title() ) ) ) . '"' . "\n";
1302      echo '    trackback:ping="' . get_trackback_url() . '"' . " />\n";
1303      echo '</rdf:RDF>';
1304  }
1305  
1306  /**
1307   * Determines whether the current post is open for comments.
1308   *
1309   * For more information on this and similar theme functions, check out
1310   * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
1311   * Conditional Tags} article in the Theme Developer Handbook.
1312   *
1313   * @since 1.5.0
1314   *
1315   * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default current post.
1316   * @return bool True if the comments are open.
1317   */
1318  function comments_open( $post = null ) {
1319      $_post = get_post( $post );
1320  
1321      $post_id       = $_post ? $_post->ID : 0;
1322      $comments_open = ( $_post && ( 'open' === $_post->comment_status ) );
1323  
1324      /**
1325       * Filters whether the current post is open for comments.
1326       *
1327       * @since 2.5.0
1328       *
1329       * @param bool $comments_open Whether the current post is open for comments.
1330       * @param int  $post_id       The post ID.
1331       */
1332      return apply_filters( 'comments_open', $comments_open, $post_id );
1333  }
1334  
1335  /**
1336   * Determines whether the current post is open for pings.
1337   *
1338   * For more information on this and similar theme functions, check out
1339   * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
1340   * Conditional Tags} article in the Theme Developer Handbook.
1341   *
1342   * @since 1.5.0
1343   *
1344   * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default current post.
1345   * @return bool True if pings are accepted
1346   */
1347  function pings_open( $post = null ) {
1348      $_post = get_post( $post );
1349  
1350      $post_id    = $_post ? $_post->ID : 0;
1351      $pings_open = ( $_post && ( 'open' === $_post->ping_status ) );
1352  
1353      /**
1354       * Filters whether the current post is open for pings.
1355       *
1356       * @since 2.5.0
1357       *
1358       * @param bool $pings_open Whether the current post is open for pings.
1359       * @param int  $post_id    The post ID.
1360       */
1361      return apply_filters( 'pings_open', $pings_open, $post_id );
1362  }
1363  
1364  /**
1365   * Displays form token for unfiltered comments.
1366   *
1367   * Will only display nonce token if the current user has permissions for
1368   * unfiltered html. Won't display the token for other users.
1369   *
1370   * The function was backported to 2.0.10 and was added to versions 2.1.3 and
1371   * above. Does not exist in versions prior to 2.0.10 in the 2.0 branch and in
1372   * the 2.1 branch, prior to 2.1.3. Technically added in 2.2.0.
1373   *
1374   * Backported to 2.0.10.
1375   *
1376   * @since 2.1.3
1377   */
1378  function wp_comment_form_unfiltered_html_nonce() {
1379      $post    = get_post();
1380      $post_id = $post ? $post->ID : 0;
1381  
1382      if ( current_user_can( 'unfiltered_html' ) ) {
1383          wp_nonce_field( 'unfiltered-html-comment_' . $post_id, '_wp_unfiltered_html_comment_disabled', false );
1384          wp_print_inline_script_tag( "(function(){if(window===window.parent){document.getElementById('_wp_unfiltered_html_comment_disabled').name='_wp_unfiltered_html_comment';}})();\n//# sourceURL=" . rawurlencode( __FUNCTION__ ) );
1385      }
1386  }
1387  
1388  /**
1389   * Loads the comment template specified in $file.
1390   *
1391   * Will not display the comments template if not on single post or page, or if
1392   * the post does not have comments.
1393   *
1394   * Uses the WordPress database object to query for the comments. The comments
1395   * are passed through the {@see 'comments_array'} filter hook with the list of comments
1396   * and the post ID respectively.
1397   *
1398   * The `$file` path is passed through a filter hook called {@see 'comments_template'},
1399   * which includes the template directory and $file combined. Tries the $filtered path
1400   * first and if it fails it will require the default comment template from the
1401   * default theme. If either does not exist, then the WordPress process will be
1402   * halted. It is advised for that reason, that the default theme is not deleted.
1403   *
1404   * Will not try to get the comments if the post has none.
1405   *
1406   * @since 1.5.0
1407   *
1408   * @global WP_Query   $wp_query           WordPress Query object.
1409   * @global WP_Post    $post               Global post object.
1410   * @global wpdb       $wpdb               WordPress database abstraction object.
1411   * @global int        $id
1412   * @global WP_Comment $comment            Global comment object.
1413   * @global string     $user_login
1414   * @global string     $user_identity
1415   * @global bool       $overridden_cpage
1416   * @global bool       $withcomments
1417   * @global string     $wp_stylesheet_path Path to current theme's stylesheet directory.
1418   * @global string     $wp_template_path   Path to current theme's template directory.
1419   *
1420   * @param string $file              Optional. The file to load. Default '/comments.php'.
1421   * @param bool   $separate_comments Optional. Whether to separate the comments by comment type.
1422   *                                  Default false.
1423   */
1424  function comments_template( $file = '/comments.php', $separate_comments = false ) {
1425      global $wp_query, $withcomments, $post, $wpdb, $id, $comment, $user_login, $user_identity, $overridden_cpage, $wp_stylesheet_path, $wp_template_path;
1426  
1427      if ( ! ( is_single() || is_page() || $withcomments ) || empty( $post ) ) {
1428          return;
1429      }
1430  
1431      if ( empty( $file ) ) {
1432          $file = '/comments.php';
1433      }
1434  
1435      $req = get_option( 'require_name_email' );
1436  
1437      /*
1438       * Comment author information fetched from the comment cookies.
1439       */
1440      $commenter = wp_get_current_commenter();
1441  
1442      /*
1443       * The name of the current comment author escaped for use in attributes.
1444       * Escaped by sanitize_comment_cookies().
1445       */
1446      $comment_author = $commenter['comment_author'];
1447  
1448      /*
1449       * The email address of the current comment author escaped for use in attributes.
1450       * Escaped by sanitize_comment_cookies().
1451       */
1452      $comment_author_email = $commenter['comment_author_email'];
1453  
1454      /*
1455       * The URL of the current comment author escaped for use in attributes.
1456       */
1457      $comment_author_url = esc_url( $commenter['comment_author_url'] );
1458  
1459      $comment_args = array(
1460          'orderby'       => 'comment_date_gmt',
1461          'order'         => 'ASC',
1462          'status'        => 'approve',
1463          'post_id'       => $post->ID,
1464          'no_found_rows' => false,
1465      );
1466  
1467      if ( get_option( 'thread_comments' ) ) {
1468          $comment_args['hierarchical'] = 'threaded';
1469      } else {
1470          $comment_args['hierarchical'] = false;
1471      }
1472  
1473      if ( is_user_logged_in() ) {
1474          $comment_args['include_unapproved'] = array( get_current_user_id() );
1475      } else {
1476          $unapproved_email = wp_get_unapproved_comment_author_email();
1477  
1478          if ( $unapproved_email ) {
1479              $comment_args['include_unapproved'] = array( $unapproved_email );
1480          }
1481      }
1482  
1483      $per_page = 0;
1484      if ( get_option( 'page_comments' ) ) {
1485          $per_page = (int) get_query_var( 'comments_per_page' );
1486          if ( 0 === $per_page ) {
1487              $per_page = (int) get_option( 'comments_per_page' );
1488          }
1489  
1490          $comment_args['number'] = $per_page;
1491          $page                   = (int) get_query_var( 'cpage' );
1492  
1493          if ( $page ) {
1494              $comment_args['offset'] = ( $page - 1 ) * $per_page;
1495          } elseif ( 'oldest' === get_option( 'default_comments_page' ) ) {
1496              $comment_args['offset'] = 0;
1497          } else {
1498              // If fetching the first page of 'newest', we need a top-level comment count.
1499              $top_level_query = new WP_Comment_Query();
1500              $top_level_args  = array(
1501                  'count'   => true,
1502                  'orderby' => false,
1503                  'post_id' => $post->ID,
1504                  'status'  => 'approve',
1505              );
1506  
1507              if ( $comment_args['hierarchical'] ) {
1508                  $top_level_args['parent'] = 0;
1509              }
1510  
1511              if ( isset( $comment_args['include_unapproved'] ) ) {
1512                  $top_level_args['include_unapproved'] = $comment_args['include_unapproved'];
1513              }
1514  
1515              /**
1516               * Filters the arguments used in the top level comments query.
1517               *
1518               * @since 5.6.0
1519               *
1520               * @see WP_Comment_Query::__construct()
1521               *
1522               * @param array $top_level_args {
1523               *     The top level query arguments for the comments template.
1524               *
1525               *     @type bool         $count   Whether to return a comment count.
1526               *     @type string|array $orderby The field(s) to order by.
1527               *     @type int          $post_id The post ID.
1528               *     @type string|array $status  The comment status to limit results by.
1529               * }
1530               */
1531              $top_level_args = apply_filters( 'comments_template_top_level_query_args', $top_level_args );
1532  
1533              $top_level_count = $top_level_query->query( $top_level_args );
1534  
1535              $comment_args['offset'] = ( (int) ceil( $top_level_count / $per_page ) - 1 ) * $per_page;
1536          }
1537      }
1538  
1539      /**
1540       * Filters the arguments used to query comments in comments_template().
1541       *
1542       * @since 4.5.0
1543       *
1544       * @see WP_Comment_Query::__construct()
1545       *
1546       * @param array $comment_args {
1547       *     Array of WP_Comment_Query arguments.
1548       *
1549       *     @type string|array $orderby                   Field(s) to order by.
1550       *     @type string       $order                     Order of results. Accepts 'ASC' or 'DESC'.
1551       *     @type string       $status                    Comment status.
1552       *     @type array        $include_unapproved        Array of IDs or email addresses whose unapproved comments
1553       *                                                   will be included in results.
1554       *     @type int          $post_id                   ID of the post.
1555       *     @type bool         $no_found_rows             Whether to refrain from querying for found rows.
1556       *     @type bool         $update_comment_meta_cache Whether to prime cache for comment meta.
1557       *     @type bool|string  $hierarchical              Whether to query for comments hierarchically.
1558       *     @type int          $offset                    Comment offset.
1559       *     @type int          $number                    Number of comments to fetch.
1560       * }
1561       */
1562      $comment_args = apply_filters( 'comments_template_query_args', $comment_args );
1563  
1564      $comment_query = new WP_Comment_Query( $comment_args );
1565      $_comments     = $comment_query->comments;
1566  
1567      // Trees must be flattened before they're passed to the walker.
1568      if ( $comment_args['hierarchical'] ) {
1569          $comments_flat = array();
1570          foreach ( $_comments as $_comment ) {
1571              $comments_flat[]  = $_comment;
1572              $comment_children = $_comment->get_children(
1573                  array(
1574                      'format'  => 'flat',
1575                      'status'  => $comment_args['status'],
1576                      'orderby' => $comment_args['orderby'],
1577                  )
1578              );
1579  
1580              foreach ( $comment_children as $comment_child ) {
1581                  $comments_flat[] = $comment_child;
1582              }
1583          }
1584      } else {
1585          $comments_flat = $_comments;
1586      }
1587  
1588      /**
1589       * Filters the comments array.
1590       *
1591       * @since 2.1.0
1592       *
1593       * @param array $comments Array of comments supplied to the comments template.
1594       * @param int   $post_id  Post ID.
1595       */
1596      $wp_query->comments = apply_filters( 'comments_array', $comments_flat, $post->ID );
1597  
1598      $comments                        = &$wp_query->comments;
1599      $wp_query->comment_count         = count( $wp_query->comments );
1600      $wp_query->max_num_comment_pages = $comment_query->max_num_pages;
1601  
1602      if ( $separate_comments ) {
1603          $wp_query->comments_by_type = separate_comments( $comments );
1604          $comments_by_type           = &$wp_query->comments_by_type;
1605      } else {
1606          $wp_query->comments_by_type = array();
1607      }
1608  
1609      $overridden_cpage = false;
1610  
1611      if ( '' === get_query_var( 'cpage' ) && $wp_query->max_num_comment_pages > 1 ) {
1612          set_query_var( 'cpage', 'newest' === get_option( 'default_comments_page' ) ? get_comment_pages_count() : 1 );
1613          $overridden_cpage = true;
1614      }
1615  
1616      if ( ! defined( 'COMMENTS_TEMPLATE' ) ) {
1617          define( 'COMMENTS_TEMPLATE', true );
1618      }
1619  
1620      $theme_template = trailingslashit( $wp_stylesheet_path ) . $file;
1621  
1622      /**
1623       * Filters the path to the theme template file used for the comments template.
1624       *
1625       * @since 1.5.1
1626       *
1627       * @param string $theme_template The path to the theme template file.
1628       */
1629      $include = apply_filters( 'comments_template', $theme_template );
1630  
1631      if ( file_exists( $include ) ) {
1632          require $include;
1633      } elseif ( file_exists( trailingslashit( $wp_template_path ) . $file ) ) {
1634          require trailingslashit( $wp_template_path ) . $file;
1635      } else { // Backward compat code will be removed in a future release.
1636          require  ABSPATH . WPINC . '/theme-compat/comments.php';
1637      }
1638  }
1639  
1640  /**
1641   * Displays the link to the comments for the current post ID.
1642   *
1643   * @since 0.71
1644   *
1645   * @param false|string $zero      Optional. String to display when no comments. Default false.
1646   * @param false|string $one       Optional. String to display when only one comment is available. Default false.
1647   * @param false|string $more      Optional. String to display when there are more than one comment. Default false.
1648   * @param string       $css_class Optional. CSS class to use for comments. Default empty.
1649   * @param false|string $none      Optional. String to display when comments have been turned off. Default false.
1650   */
1651  function comments_popup_link( $zero = false, $one = false, $more = false, $css_class = '', $none = false ) {
1652      $post_id         = get_the_ID();
1653      $post_title      = get_the_title();
1654      $comments_number = (int) get_comments_number( $post_id );
1655  
1656      if ( false === $zero ) {
1657          /* translators: %s: Post title. */
1658          $zero = sprintf( __( 'No Comments<span class="screen-reader-text"> on %s</span>' ), $post_title );
1659      }
1660  
1661      if ( false === $one ) {
1662          /* translators: %s: Post title. */
1663          $one = sprintf( __( '1 Comment<span class="screen-reader-text"> on %s</span>' ), $post_title );
1664      }
1665  
1666      if ( false === $more ) {
1667          /* translators: 1: Number of comments, 2: Post title. */
1668          $more = _n(
1669              '%1$s Comment<span class="screen-reader-text"> on %2$s</span>',
1670              '%1$s Comments<span class="screen-reader-text"> on %2$s</span>',
1671              $comments_number
1672          );
1673          $more = sprintf( $more, number_format_i18n( $comments_number ), $post_title );
1674      }
1675  
1676      if ( false === $none ) {
1677          /* translators: %s: Post title. */
1678          $none = sprintf( __( 'Comments Off<span class="screen-reader-text"> on %s</span>' ), $post_title );
1679      }
1680  
1681      if ( 0 === $comments_number && ! comments_open() && ! pings_open() ) {
1682          printf(
1683              '<span%1$s>%2$s</span>',
1684              ! empty( $css_class ) ? ' class="' . esc_attr( $css_class ) . '"' : '',
1685              $none
1686          );
1687          return;
1688      }
1689  
1690      if ( post_password_required() ) {
1691          _e( 'Enter your password to view comments.' );
1692          return;
1693      }
1694  
1695      if ( 0 === $comments_number ) {
1696          $respond_link = get_permalink() . '#respond';
1697          /**
1698           * Filters the respond link when a post has no comments.
1699           *
1700           * @since 4.4.0
1701           *
1702           * @param string $respond_link The default response link.
1703           * @param int    $post_id      The post ID.
1704           */
1705          $comments_link = apply_filters( 'respond_link', $respond_link, $post_id );
1706      } else {
1707          $comments_link = get_comments_link();
1708      }
1709  
1710      $link_attributes = '';
1711  
1712      /**
1713       * Filters the comments link attributes for display.
1714       *
1715       * @since 2.5.0
1716       *
1717       * @param string $link_attributes The comments link attributes. Default empty.
1718       */
1719      $link_attributes = apply_filters( 'comments_popup_link_attributes', $link_attributes );
1720  
1721      printf(
1722          '<a href="%1$s"%2$s%3$s>%4$s</a>',
1723          esc_url( $comments_link ),
1724          ! empty( $css_class ) ? ' class="' . $css_class . '" ' : '',
1725          $link_attributes,
1726          get_comments_number_text( $zero, $one, $more )
1727      );
1728  }
1729  
1730  /**
1731   * Retrieves HTML content for reply to comment link.
1732   *
1733   * @since 2.7.0
1734   * @since 4.4.0 Added the ability for `$comment` to also accept a WP_Comment object.
1735   *
1736   * @param array          $args {
1737   *     Optional. Override default arguments.
1738   *
1739   *     @type string $add_below          The first part of the selector used to identify the comment to respond below.
1740   *                                      The resulting value is passed as the first parameter to addComment.moveForm(),
1741   *                                      concatenated as $add_below-$comment->comment_ID. Default 'comment'.
1742   *     @type string $respond_id         The selector identifying the responding comment. Passed as the third parameter
1743   *                                      to addComment.moveForm(), and appended to the link URL as a hash value.
1744   *                                      Default 'respond'.
1745   *     @type string $reply_text         The visible text of the Reply link. Default 'Reply'.
1746   *     @type string $reply_to_text      The accessible name of the Reply link, using `%s` as a placeholder
1747   *                                      for the comment author's name. Default 'Reply to %s'.
1748   *                                      Should start with the visible `reply_text` value.
1749   *     @type bool   $show_reply_to_text Whether to use `reply_to_text` as visible link text. Default false.
1750   *     @type string $login_text         The text of the link to reply if logged out. Default 'Log in to Reply'.
1751   *     @type int    $max_depth          The max depth of the comment tree. Default 0.
1752   *     @type int    $depth              The depth of the new comment. Must be greater than 0 and less than the value
1753   *                                      of the 'thread_comments_depth' option set in Settings > Discussion. Default 0.
1754   *     @type string $before             The text or HTML to add before the reply link. Default empty.
1755   *     @type string $after              The text or HTML to add after the reply link. Default empty.
1756   * }
1757   * @param int|WP_Comment $comment Optional. Comment being replied to. Default current comment.
1758   * @param int|WP_Post    $post    Optional. Post ID or WP_Post object the comment is going to be displayed on.
1759   *                                Default current post.
1760   * @return string|false|null Link to show comment form on success. False if comments are closed. Null on failure.
1761   */
1762  function get_comment_reply_link( $args = array(), $comment = null, $post = null ) {
1763      $defaults = array(
1764          'add_below'          => 'comment',
1765          'respond_id'         => 'respond',
1766          /* translators: Comment reply button text. */
1767          'reply_text'         => _x( 'Reply', 'verb' ),
1768          /* translators: Comment reply button text. %s: Comment author name. */
1769          'reply_to_text'      => __( 'Reply to %s' ),
1770          'login_text'         => __( 'Log in to Reply' ),
1771          'max_depth'          => 0,
1772          'depth'              => 0,
1773          'before'             => '',
1774          'after'              => '',
1775          'show_reply_to_text' => false,
1776      );
1777  
1778      $args = wp_parse_args( $args, $defaults );
1779  
1780      $args['max_depth'] = (int) $args['max_depth'];
1781      $args['depth']     = (int) $args['depth'];
1782  
1783      if ( 0 === $args['depth'] || $args['max_depth'] <= $args['depth'] ) {
1784          return null;
1785      }
1786  
1787      $comment = get_comment( $comment );
1788  
1789      if ( empty( $comment ) ) {
1790          return null;
1791      }
1792  
1793      if ( empty( $post ) ) {
1794          $post = $comment->comment_post_ID;
1795      }
1796  
1797      $post = get_post( $post );
1798  
1799      if ( ! comments_open( $post->ID ) ) {
1800          return false;
1801      }
1802  
1803      if ( get_option( 'page_comments' ) ) {
1804          $permalink = str_replace( '#comment-' . $comment->comment_ID, '', get_comment_link( $comment ) );
1805      } else {
1806          $permalink = get_permalink( $post->ID );
1807      }
1808  
1809      /**
1810       * Filters the comment reply link arguments.
1811       *
1812       * @since 4.1.0
1813       *
1814       * @param array      $args    Comment reply link arguments. See get_comment_reply_link()
1815       *                            for more information on accepted arguments.
1816       * @param WP_Comment $comment The object of the comment being replied to.
1817       * @param WP_Post    $post    The WP_Post object.
1818       */
1819      $args = apply_filters( 'comment_reply_link_args', $args, $comment, $post );
1820  
1821      if ( get_option( 'comment_registration' ) && ! is_user_logged_in() ) {
1822          $link = sprintf(
1823              '<a rel="nofollow" class="comment-reply-login" href="%s">%s</a>',
1824              esc_url( wp_login_url( get_permalink() ) ),
1825              $args['login_text']
1826          );
1827      } else {
1828          $data_attributes = array(
1829              'commentid'      => $comment->comment_ID,
1830              'postid'         => $post->ID,
1831              'belowelement'   => $args['add_below'] . '-' . $comment->comment_ID,
1832              'respondelement' => $args['respond_id'],
1833              'replyto'        => sprintf( $args['reply_to_text'], get_comment_author( $comment ) ),
1834          );
1835  
1836          $data_attribute_string = '';
1837  
1838          foreach ( $data_attributes as $name => $value ) {
1839              $data_attribute_string .= " data-{$name}=\"" . esc_attr( $value ) . '"';
1840          }
1841  
1842          $data_attribute_string = trim( $data_attribute_string );
1843  
1844          $reply_text = $args['show_reply_to_text']
1845              ? sprintf( $args['reply_to_text'], get_comment_author( $comment ) )
1846              : $args['reply_text'];
1847  
1848          $aria_label = $args['show_reply_to_text'] ? '' : sprintf( $args['reply_to_text'], get_comment_author( $comment ) );
1849  
1850          $link = sprintf(
1851              '<a rel="nofollow" class="comment-reply-link" href="%s" %s%s>%s</a>',
1852              esc_url(
1853                  add_query_arg(
1854                      array(
1855                          'replytocom'      => $comment->comment_ID,
1856                          'unapproved'      => false,
1857                          'moderation-hash' => false,
1858                      ),
1859                      $permalink
1860                  )
1861              ) . '#' . $args['respond_id'],
1862              $data_attribute_string,
1863              $aria_label ? ' aria-label="' . esc_attr( $aria_label ) . '"' : '',
1864              $reply_text
1865          );
1866      }
1867  
1868      $comment_reply_link = $args['before'] . $link . $args['after'];
1869  
1870      /**
1871       * Filters the comment reply link.
1872       *
1873       * @since 2.7.0
1874       *
1875       * @param string     $comment_reply_link The HTML markup for the comment reply link.
1876       * @param array      $args               An array of arguments overriding the defaults.
1877       * @param WP_Comment $comment            The object of the comment being replied.
1878       * @param WP_Post    $post               The WP_Post object.
1879       */
1880      return apply_filters( 'comment_reply_link', $comment_reply_link, $args, $comment, $post );
1881  }
1882  
1883  /**
1884   * Displays the HTML content for reply to comment link.
1885   *
1886   * @since 2.7.0
1887   *
1888   * @see get_comment_reply_link()
1889   *
1890   * @param array          $args    Optional. Override default options. Default empty array.
1891   * @param int|WP_Comment $comment Optional. Comment being replied to. Default current comment.
1892   * @param int|WP_Post    $post    Optional. Post ID or WP_Post object the comment is going to be displayed on.
1893   *                                Default current post.
1894   */
1895  function comment_reply_link( $args = array(), $comment = null, $post = null ) {
1896      echo get_comment_reply_link( $args, $comment, $post );
1897  }
1898  
1899  /**
1900   * Retrieves HTML content for reply to post link.
1901   *
1902   * @since 2.7.0
1903   *
1904   * @param array       $args {
1905   *     Optional. Override default arguments.
1906   *
1907   *     @type string $add_below  The first part of the selector used to identify the comment to respond below.
1908   *                              The resulting value is passed as the first parameter to addComment.moveForm(),
1909   *                              concatenated as $add_below-$comment->comment_ID. Default is 'post'.
1910   *     @type string $respond_id The selector identifying the responding comment. Passed as the third parameter
1911   *                              to addComment.moveForm(), and appended to the link URL as a hash value.
1912   *                              Default 'respond'.
1913   *     @type string $reply_text Text of the Reply link. Default is 'Leave a Comment'.
1914   *     @type string $login_text Text of the link to reply if logged out. Default is 'Log in to leave a Comment'.
1915   *     @type string $before     Text or HTML to add before the reply link. Default empty.
1916   *     @type string $after      Text or HTML to add after the reply link. Default empty.
1917   * }
1918   * @param int|WP_Post $post Optional. Post ID or WP_Post object the comment is going to be displayed on.
1919   *                          Default current post.
1920   * @return string|false Link to show comment form on success. False if comments are closed.
1921   */
1922  function get_post_reply_link( $args = array(), $post = null ) {
1923      $defaults = array(
1924          'add_below'  => 'post',
1925          'respond_id' => 'respond',
1926          'reply_text' => __( 'Leave a Comment' ),
1927          'login_text' => __( 'Log in to leave a Comment' ),
1928          'before'     => '',
1929          'after'      => '',
1930      );
1931  
1932      $args = wp_parse_args( $args, $defaults );
1933  
1934      $post = get_post( $post );
1935  
1936      if ( ! comments_open( $post->ID ) ) {
1937          return false;
1938      }
1939  
1940      if ( get_option( 'comment_registration' ) && ! is_user_logged_in() ) {
1941          $link = sprintf(
1942              '<a rel="nofollow" class="comment-reply-login" href="%s">%s</a>',
1943              wp_login_url( get_permalink() ),
1944              $args['login_text']
1945          );
1946      } else {
1947          $onclick = sprintf(
1948              'return addComment.moveForm( "%1$s-%2$s", "0", "%3$s", "%2$s" )',
1949              $args['add_below'],
1950              $post->ID,
1951              $args['respond_id']
1952          );
1953  
1954          $link = sprintf(
1955              "<a rel='nofollow' class='comment-reply-link' href='%s' onclick='%s'>%s</a>",
1956              get_permalink( $post->ID ) . '#' . $args['respond_id'],
1957              $onclick,
1958              $args['reply_text']
1959          );
1960      }
1961  
1962      $post_reply_link = $args['before'] . $link . $args['after'];
1963  
1964      /**
1965       * Filters the formatted post comments link HTML.
1966       *
1967       * @since 2.7.0
1968       *
1969       * @param string      $post_reply_link The HTML-formatted post comments link.
1970       * @param int|WP_Post $post            The post ID or WP_Post object.
1971       */
1972      return apply_filters( 'post_comments_link', $post_reply_link, $post );
1973  }
1974  
1975  /**
1976   * Displays the HTML content for reply to post link.
1977   *
1978   * @since 2.7.0
1979   *
1980   * @see get_post_reply_link()
1981   *
1982   * @param array       $args Optional. Override default options. Default empty array.
1983   * @param int|WP_Post $post Optional. Post ID or WP_Post object the comment is going to be displayed on.
1984   *                          Default current post.
1985   */
1986  function post_reply_link( $args = array(), $post = null ) {
1987      echo get_post_reply_link( $args, $post );
1988  }
1989  
1990  /**
1991   * Retrieves HTML content for cancel comment reply link.
1992   *
1993   * @since 2.7.0
1994   * @since 6.2.0 Added the `$post` parameter.
1995   *
1996   * @param string           $link_text Optional. Text to display for cancel reply link. If empty,
1997   *                                    defaults to 'Click here to cancel reply'. Default empty.
1998   * @param int|WP_Post|null $post      Optional. The post the comment thread is being
1999   *                                    displayed for. Defaults to the current global post.
2000   * @return string
2001   */
2002  function get_cancel_comment_reply_link( $link_text = '', $post = null ) {
2003      if ( empty( $link_text ) ) {
2004          $link_text = __( 'Click here to cancel reply.' );
2005      }
2006  
2007      $post        = get_post( $post );
2008      $reply_to_id = $post ? _get_comment_reply_id( $post->ID ) : 0;
2009      $link_style  = 0 !== $reply_to_id ? '' : ' style="display:none;"';
2010      $link_url    = esc_url( remove_query_arg( array( 'replytocom', 'unapproved', 'moderation-hash' ) ) ) . '#respond';
2011  
2012      $cancel_comment_reply_link = sprintf(
2013          '<a rel="nofollow" id="cancel-comment-reply-link" href="%1$s"%2$s>%3$s</a>',
2014          $link_url,
2015          $link_style,
2016          $link_text
2017      );
2018  
2019      /**
2020       * Filters the cancel comment reply link HTML.
2021       *
2022       * @since 2.7.0
2023       *
2024       * @param string $cancel_comment_reply_link The HTML-formatted cancel comment reply link.
2025       * @param string $link_url                  Cancel comment reply link URL.
2026       * @param string $link_text                 Cancel comment reply link text.
2027       */
2028      return apply_filters( 'cancel_comment_reply_link', $cancel_comment_reply_link, $link_url, $link_text );
2029  }
2030  
2031  /**
2032   * Displays HTML content for cancel comment reply link.
2033   *
2034   * @since 2.7.0
2035   *
2036   * @param string $link_text Optional. Text to display for cancel reply link. If empty,
2037   *                     defaults to 'Click here to cancel reply'. Default empty.
2038   */
2039  function cancel_comment_reply_link( $link_text = '' ) {
2040      echo get_cancel_comment_reply_link( $link_text );
2041  }
2042  
2043  /**
2044   * Retrieves hidden input HTML for replying to comments.
2045   *
2046   * @since 3.0.0
2047   * @since 6.2.0 Renamed `$post_id` to `$post` and added WP_Post support.
2048   *
2049   * @param int|WP_Post|null $post Optional. The post the comment is being displayed for.
2050   *                               Defaults to the current global post.
2051   * @return string Hidden input HTML for replying to comments.
2052   */
2053  function get_comment_id_fields( $post = null ) {
2054      $post = get_post( $post );
2055      if ( ! $post ) {
2056          return '';
2057      }
2058  
2059      $post_id     = $post->ID;
2060      $reply_to_id = _get_comment_reply_id( $post_id );
2061  
2062      $comment_id_fields  = "<input type='hidden' name='comment_post_ID' value='$post_id' id='comment_post_ID' />\n";
2063      $comment_id_fields .= "<input type='hidden' name='comment_parent' id='comment_parent' value='$reply_to_id' />\n";
2064  
2065      /**
2066       * Filters the returned comment ID fields.
2067       *
2068       * @since 3.0.0
2069       *
2070       * @param string $comment_id_fields The HTML-formatted hidden ID field comment elements.
2071       * @param int    $post_id           The post ID.
2072       * @param int    $reply_to_id       The ID of the comment being replied to.
2073       */
2074      return apply_filters( 'comment_id_fields', $comment_id_fields, $post_id, $reply_to_id );
2075  }
2076  
2077  /**
2078   * Outputs hidden input HTML for replying to comments.
2079   *
2080   * Adds two hidden inputs to the comment form to identify the `comment_post_ID`
2081   * and `comment_parent` values for threaded comments.
2082   *
2083   * This tag must be within the `<form>` section of the `comments.php` template.
2084   *
2085   * @since 2.7.0
2086   * @since 6.2.0 Renamed `$post_id` to `$post` and added WP_Post support.
2087   *
2088   * @see get_comment_id_fields()
2089   *
2090   * @param int|WP_Post|null $post Optional. The post the comment is being displayed for.
2091   *                               Defaults to the current global post.
2092   */
2093  function comment_id_fields( $post = null ) {
2094      echo get_comment_id_fields( $post );
2095  }
2096  
2097  /**
2098   * Displays text based on comment reply status.
2099   *
2100   * Only affects users with JavaScript disabled.
2101   *
2102   * {@internal The $comment global must be present to allow template tags access to the current
2103   * comment. See https://core.trac.wordpress.org/changeset/36512.}
2104   *
2105   * @since 2.7.0
2106   * @since 6.2.0 Added the `$post` parameter.
2107   *
2108   * @global WP_Comment $comment Global comment object.
2109   *
2110   * @param string|false     $no_reply_text  Optional. Text to display when not replying to a comment.
2111   *                                         Default false.
2112   * @param string|false     $reply_text     Optional. Text to display when replying to a comment.
2113   *                                         Default false. Accepts "%s" for the author of the comment
2114   *                                         being replied to.
2115   * @param bool             $link_to_parent Optional. Boolean to control making the author's name a link
2116   *                                         to their comment. Default true.
2117   * @param int|WP_Post|null $post           Optional. The post that the comment form is being displayed for.
2118   *                                         Defaults to the current global post.
2119   */
2120  function comment_form_title( $no_reply_text = false, $reply_text = false, $link_to_parent = true, $post = null ) {
2121      global $comment;
2122  
2123      if ( false === $no_reply_text ) {
2124          $no_reply_text = __( 'Leave a Reply' );
2125      }
2126  
2127      if ( false === $reply_text ) {
2128          /* translators: %s: Author of the comment being replied to. */
2129          $reply_text = __( 'Leave a Reply to %s' );
2130      }
2131  
2132      $post = get_post( $post );
2133      if ( ! $post ) {
2134          echo $no_reply_text;
2135          return;
2136      }
2137  
2138      $reply_to_id = _get_comment_reply_id( $post->ID );
2139  
2140      if ( 0 === $reply_to_id ) {
2141          echo $no_reply_text;
2142          return;
2143      }
2144  
2145      // Sets the global so that template tags can be used in the comment form.
2146      $comment = get_comment( $reply_to_id );
2147  
2148      if ( $link_to_parent ) {
2149          $comment_author = sprintf(
2150              '<a href="#comment-%1$s">%2$s</a>',
2151              get_comment_ID(),
2152              get_comment_author( $reply_to_id )
2153          );
2154      } else {
2155          $comment_author = get_comment_author( $reply_to_id );
2156      }
2157  
2158      printf( $reply_text, $comment_author );
2159  }
2160  
2161  /**
2162   * Gets the comment's reply to ID from the $_GET['replytocom'].
2163   *
2164   * @since 6.2.0
2165   *
2166   * @access private
2167   *
2168   * @param int|WP_Post|null $post The post the comment is being displayed for.
2169   *                               Defaults to the current global post.
2170   * @return int Comment's reply to ID.
2171   */
2172  function _get_comment_reply_id( $post = null ) {
2173      $post = get_post( $post );
2174  
2175      if ( ! $post || ! isset( $_GET['replytocom'] ) || ! is_numeric( $_GET['replytocom'] ) ) {
2176          return 0;
2177      }
2178  
2179      $reply_to_id = (int) $_GET['replytocom'];
2180  
2181      /*
2182       * Validate the comment.
2183       * Bail out if it does not exist, is not approved, or its
2184       * `comment_post_ID` does not match the given post ID.
2185       */
2186      $comment = get_comment( $reply_to_id );
2187  
2188      if (
2189          ! $comment instanceof WP_Comment ||
2190          0 === (int) $comment->comment_approved ||
2191          $post->ID !== (int) $comment->comment_post_ID
2192      ) {
2193          return 0;
2194      }
2195  
2196      return $reply_to_id;
2197  }
2198  
2199  /**
2200   * Displays a list of comments.
2201   *
2202   * Used in the comments.php template to list comments for a particular post.
2203   *
2204   * @since 2.7.0
2205   *
2206   * @see WP_Query::$comments
2207   *
2208   * @global WP_Query $wp_query           WordPress Query object.
2209   * @global int      $comment_alt
2210   * @global int      $comment_depth
2211   * @global int      $comment_thread_alt
2212   * @global bool     $overridden_cpage
2213   * @global bool     $in_comment_loop
2214   *
2215   * @param string|array $args {
2216   *     Optional. Formatting options.
2217   *
2218   *     @type object   $walker            Instance of a Walker class to list comments. Default null.
2219   *     @type int      $max_depth         The maximum comments depth. Default empty.
2220   *     @type string   $style             The style of list ordering. Accepts 'ul', 'ol', or 'div'.
2221   *                                       'div' will result in no additional list markup. Default 'ul'.
2222   *     @type callable $callback          Callback function to use. Default null.
2223   *     @type callable $end-callback      Callback function to use at the end. Default null.
2224   *     @type string   $type              Type of comments to list. Accepts 'all', 'comment',
2225   *                                       'pingback', 'trackback', 'pings'. Default 'all'.
2226   *     @type int      $page              Page ID to list comments for. Default empty.
2227   *     @type int      $per_page          Number of comments to list per page. Default empty.
2228   *     @type int      $avatar_size       Height and width dimensions of the avatar size. Default 32.
2229   *     @type bool     $reverse_top_level Ordering of the listed comments. If true, will display
2230   *                                       newest comments first. Default null.
2231   *     @type bool     $reverse_children  Whether to reverse child comments in the list. Default null.
2232   *     @type string   $format            How to format the comments list. Accepts 'html5', 'xhtml'.
2233   *                                       Default 'html5' if the theme supports it.
2234   *     @type bool     $short_ping        Whether to output short pings. Default false.
2235   *     @type bool     $echo              Whether to echo the output or return it. Default true.
2236   * }
2237   * @param WP_Comment[] $comments Optional. Array of WP_Comment objects. Default null.
2238   * @return string|null|void HTML list of comments when 'echo' is false, null when there are
2239   *                          no comments to list. Nothing otherwise.
2240   * @phpstan-return (
2241   *     $args is array{ echo: false|0|''|'0', ... }
2242   *         ? string|null
2243   *         : ( $args is ''|'0'|array ? void : string|null )
2244   * )
2245   */
2246  function wp_list_comments( $args = array(), $comments = null ) {
2247      global $wp_query, $comment_alt, $comment_depth, $comment_thread_alt, $overridden_cpage, $in_comment_loop;
2248  
2249      $in_comment_loop = true;
2250  
2251      $comment_alt        = 0;
2252      $comment_thread_alt = 0;
2253      $comment_depth      = 1;
2254  
2255      $defaults = array(
2256          'walker'            => null,
2257          'max_depth'         => '',
2258          'style'             => 'ul',
2259          'callback'          => null,
2260          'end-callback'      => null,
2261          'type'              => 'all',
2262          'page'              => '',
2263          'per_page'          => '',
2264          'avatar_size'       => 32,
2265          'reverse_top_level' => null,
2266          'reverse_children'  => '',
2267          'format'            => current_theme_supports( 'html5', 'comment-list' ) ? 'html5' : 'xhtml',
2268          'short_ping'        => false,
2269          'echo'              => true,
2270      );
2271  
2272      $parsed_args = wp_parse_args( $args, $defaults );
2273  
2274      /**
2275       * Filters the arguments used in retrieving the comment list.
2276       *
2277       * @since 4.0.0
2278       *
2279       * @see wp_list_comments()
2280       *
2281       * @param array $parsed_args An array of arguments for displaying comments.
2282       */
2283      $parsed_args = apply_filters( 'wp_list_comments_args', $parsed_args );
2284  
2285      // Figure out what comments we'll be looping through ($_comments).
2286      if ( null !== $comments ) {
2287          $comments = (array) $comments;
2288          if ( empty( $comments ) ) {
2289              return null;
2290          }
2291          if ( 'all' !== $parsed_args['type'] ) {
2292              $comments_by_type = separate_comments( $comments );
2293              if ( empty( $comments_by_type[ $parsed_args['type'] ] ) ) {
2294                  return null;
2295              }
2296              $_comments = $comments_by_type[ $parsed_args['type'] ];
2297          } else {
2298              $_comments = $comments;
2299          }
2300      } else {
2301          /*
2302           * If 'page' or 'per_page' has been passed, and does not match what's in $wp_query,
2303           * perform a separate comment query and allow Walker_Comment to paginate.
2304           */
2305          if ( $parsed_args['page'] || $parsed_args['per_page'] ) {
2306              $current_cpage = (int) get_query_var( 'cpage' );
2307              if ( ! $current_cpage ) {
2308                  $current_cpage = 'newest' === get_option( 'default_comments_page' ) ? 1 : $wp_query->max_num_comment_pages;
2309              }
2310  
2311              $current_per_page = (int) get_query_var( 'comments_per_page' );
2312              if ( (int) $parsed_args['page'] !== $current_cpage || (int) $parsed_args['per_page'] !== $current_per_page ) {
2313                  $comment_args = array(
2314                      'post_id' => get_the_ID(),
2315                      'orderby' => 'comment_date_gmt',
2316                      'order'   => 'ASC',
2317                      'status'  => 'approve',
2318                  );
2319  
2320                  if ( is_user_logged_in() ) {
2321                      $comment_args['include_unapproved'] = array( get_current_user_id() );
2322                  } else {
2323                      $unapproved_email = wp_get_unapproved_comment_author_email();
2324  
2325                      if ( $unapproved_email ) {
2326                          $comment_args['include_unapproved'] = array( $unapproved_email );
2327                      }
2328                  }
2329  
2330                  $comments = get_comments( $comment_args );
2331  
2332                  if ( 'all' !== $parsed_args['type'] ) {
2333                      $comments_by_type = separate_comments( $comments );
2334                      if ( empty( $comments_by_type[ $parsed_args['type'] ] ) ) {
2335                          return null;
2336                      }
2337  
2338                      $_comments = $comments_by_type[ $parsed_args['type'] ];
2339                  } else {
2340                      $_comments = $comments;
2341                  }
2342              }
2343  
2344              // Otherwise, fall back on the comments from `$wp_query->comments`.
2345          } else {
2346              if ( empty( $wp_query->comments ) ) {
2347                  return null;
2348              }
2349              if ( 'all' !== $parsed_args['type'] ) {
2350                  if ( empty( $wp_query->comments_by_type ) ) {
2351                      $wp_query->comments_by_type = separate_comments( $wp_query->comments );
2352                  }
2353                  if ( empty( $wp_query->comments_by_type[ $parsed_args['type'] ] ) ) {
2354                      return null;
2355                  }
2356                  $_comments = $wp_query->comments_by_type[ $parsed_args['type'] ];
2357              } else {
2358                  $_comments = $wp_query->comments;
2359              }
2360  
2361              if ( $wp_query->max_num_comment_pages ) {
2362                  $default_comments_page = get_option( 'default_comments_page' );
2363                  $cpage                 = (int) get_query_var( 'cpage' );
2364  
2365                  if ( 'newest' === $default_comments_page ) {
2366                      $parsed_args['cpage'] = $cpage;
2367                  } elseif ( 1 === $cpage ) {
2368                      /*
2369                       * When the first page shows the oldest comments,
2370                       * post permalink is the same as the comment permalink.
2371                       */
2372                      $parsed_args['cpage'] = '';
2373                  } else {
2374                      $parsed_args['cpage'] = $cpage;
2375                  }
2376  
2377                  $parsed_args['page']     = 0;
2378                  $parsed_args['per_page'] = 0;
2379              }
2380          }
2381      }
2382  
2383      if ( '' === $parsed_args['per_page'] && get_option( 'page_comments' ) ) {
2384          $parsed_args['per_page'] = get_query_var( 'comments_per_page' );
2385      }
2386  
2387      if ( empty( $parsed_args['per_page'] ) ) {
2388          $parsed_args['per_page'] = 0;
2389          $parsed_args['page']     = 0;
2390      }
2391  
2392      if ( '' === $parsed_args['max_depth'] ) {
2393          if ( get_option( 'thread_comments' ) ) {
2394              $parsed_args['max_depth'] = get_option( 'thread_comments_depth' );
2395          } else {
2396              $parsed_args['max_depth'] = -1;
2397          }
2398      }
2399  
2400      if ( '' === $parsed_args['page'] ) {
2401          if ( empty( $overridden_cpage ) ) {
2402              $parsed_args['page'] = get_query_var( 'cpage' );
2403          } else {
2404              $threaded            = ( -1 !== (int) $parsed_args['max_depth'] );
2405              $parsed_args['page'] = ( 'newest' === get_option( 'default_comments_page' ) ) ? get_comment_pages_count( $_comments, $parsed_args['per_page'], $threaded ) : 1;
2406              set_query_var( 'cpage', $parsed_args['page'] );
2407          }
2408      }
2409  
2410      // Validation check.
2411      $parsed_args['page']     = (int) $parsed_args['page'];
2412      $parsed_args['per_page'] = (int) $parsed_args['per_page'];
2413      if ( 0 === $parsed_args['page'] && 0 !== $parsed_args['per_page'] ) {
2414          $parsed_args['page'] = 1;
2415      }
2416  
2417      if ( null === $parsed_args['reverse_top_level'] ) {
2418          $parsed_args['reverse_top_level'] = ( 'desc' === get_option( 'comment_order' ) );
2419      }
2420  
2421      if ( empty( $parsed_args['walker'] ) ) {
2422          $walker = new Walker_Comment();
2423      } else {
2424          $walker = $parsed_args['walker'];
2425      }
2426  
2427      $output = $walker->paged_walk( $_comments, $parsed_args['max_depth'], $parsed_args['page'], $parsed_args['per_page'], $parsed_args );
2428  
2429      $in_comment_loop = false;
2430  
2431      if ( $parsed_args['echo'] ) {
2432          echo $output;
2433      } else {
2434          return $output;
2435      }
2436  }
2437  
2438  /**
2439   * Outputs a complete commenting form for use within a template.
2440   *
2441   * Most strings and form fields may be controlled through the `$args` array passed
2442   * into the function, while you may also choose to use the {@see 'comment_form_default_fields'}
2443   * filter to modify the array of default fields if you'd just like to add a new
2444   * one or remove a single field. All fields are also individually passed through
2445   * a filter of the {@see 'comment_form_field_$name'} where `$name` is the key used
2446   * in the array of fields.
2447   *
2448   * @since 3.0.0
2449   * @since 4.1.0 Introduced the 'class_submit' argument.
2450   * @since 4.2.0 Introduced the 'submit_button' and 'submit_fields' arguments.
2451   * @since 4.4.0 Introduced the 'class_form', 'title_reply_before', 'title_reply_after',
2452   *              'cancel_reply_before', and 'cancel_reply_after' arguments.
2453   * @since 4.5.0 The 'author', 'email', and 'url' form fields are limited to 245, 100,
2454   *              and 200 characters, respectively.
2455   * @since 4.6.0 Introduced the 'action' argument.
2456   * @since 4.9.6 Introduced the 'cookies' default comment field.
2457   * @since 5.5.0 Introduced the 'class_container' argument.
2458   * @since 6.8.2 Introduced the 'novalidate' argument.
2459   *
2460   * @param array       $args {
2461   *     Optional. Default arguments and form fields to override.
2462   *
2463   *     @type array $fields {
2464   *         Default comment fields, filterable by default via the {@see 'comment_form_default_fields'} hook.
2465   *
2466   *         @type string $author  Comment author field HTML.
2467   *         @type string $email   Comment author email field HTML.
2468   *         @type string $url     Comment author URL field HTML.
2469   *         @type string $cookies Comment cookie opt-in field HTML.
2470   *     }
2471   *     @type string $comment_field        The comment textarea field HTML.
2472   *     @type string $must_log_in          HTML element for a 'must be logged in to comment' message.
2473   *     @type string $logged_in_as         The HTML for the 'logged in as [user]' message, the Edit profile link,
2474   *                                        and the Log out link.
2475   *     @type string $comment_notes_before HTML element for a message displayed before the comment fields
2476   *                                        if the user is not logged in.
2477   *                                        Default 'Your email address will not be published.'.
2478   *     @type string $comment_notes_after  HTML element for a message displayed after the textarea field.
2479   *     @type string $action               The comment form element action attribute. Default '/wp-comments-post.php'.
2480   *     @type bool   $novalidate           Whether the novalidate attribute is added to the comment form. Default false.
2481   *     @type string $id_form              The comment form element id attribute. Default 'commentform'.
2482   *     @type string $id_submit            The comment submit element id attribute. Default 'submit'.
2483   *     @type string $class_container      The comment form container class attribute. Default 'comment-respond'.
2484   *     @type string $class_form           The comment form element class attribute. Default 'comment-form'.
2485   *     @type string $class_submit         The comment submit element class attribute. Default 'submit'.
2486   *     @type string $name_submit          The comment submit element name attribute. Default 'submit'.
2487   *     @type string $title_reply          The translatable 'reply' button label. Default 'Leave a Reply'.
2488   *     @type string $title_reply_to       The translatable 'reply-to' button label. Default 'Leave a Reply to %s',
2489   *                                        where %s is the author of the comment being replied to.
2490   *     @type string $title_reply_before   HTML displayed before the comment form title.
2491   *                                        Default: '<h3 id="reply-title" class="comment-reply-title">'.
2492   *     @type string $title_reply_after    HTML displayed after the comment form title.
2493   *                                        Default: '</h3>'.
2494   *     @type string $cancel_reply_before  HTML displayed before the cancel reply link.
2495   *     @type string $cancel_reply_after   HTML displayed after the cancel reply link.
2496   *     @type string $cancel_reply_link    The translatable 'cancel reply' button label. Default 'Cancel reply'.
2497   *     @type string $label_submit         The translatable 'submit' button label. Default 'Post a comment'.
2498   *     @type string $submit_button        HTML format for the Submit button.
2499   *                                        Default: '<input name="%1$s" type="submit" id="%2$s" class="%3$s" value="%4$s" />'.
2500   *     @type string $submit_field         HTML format for the markup surrounding the Submit button and comment hidden
2501   *                                        fields. Default: '<p class="form-submit">%1$s %2$s</p>', where %1$s is the
2502   *                                        submit button markup and %2$s is the comment hidden fields.
2503   *     @type string $format               The comment form format. Default 'xhtml'. Accepts 'xhtml', 'html5'.
2504   * }
2505   * @param int|WP_Post $post Optional. Post ID or WP_Post object to generate the form for. Default current post.
2506   */
2507  function comment_form( $args = array(), $post = null ) {
2508      $post = get_post( $post );
2509  
2510      // Exit the function if the post is invalid or comments are closed.
2511      if ( ! $post || ! comments_open( $post ) ) {
2512          /**
2513           * Fires after the comment form if comments are closed.
2514           *
2515           * For backward compatibility, this action also fires if comment_form()
2516           * is called with an invalid post object or ID.
2517           *
2518           * @since 3.0.0
2519           */
2520          do_action( 'comment_form_comments_closed' );
2521  
2522          return;
2523      }
2524  
2525      $post_id       = $post->ID;
2526      $commenter     = wp_get_current_commenter();
2527      $user          = wp_get_current_user();
2528      $user_identity = $user->exists() ? $user->display_name : '';
2529  
2530      $args = wp_parse_args( $args );
2531      if ( ! isset( $args['format'] ) ) {
2532          $args['format'] = current_theme_supports( 'html5', 'comment-form' ) ? 'html5' : 'xhtml';
2533      }
2534  
2535      $req   = get_option( 'require_name_email' );
2536      $html5 = 'html5' === $args['format'];
2537  
2538      // Define attributes in HTML5 or XHTML syntax.
2539      $required_attribute = ( $html5 ? ' required' : ' required="required"' );
2540      $checked_attribute  = ( $html5 ? ' checked' : ' checked="checked"' );
2541  
2542      // Identify required fields visually and create a message about the indicator.
2543      $required_indicator = ' ' . wp_required_field_indicator();
2544      $required_text      = ' ' . wp_required_field_message();
2545  
2546      $fields = array(
2547          'author' => sprintf(
2548              '<p class="comment-form-author">%s %s</p>',
2549              sprintf(
2550                  '<label for="author">%s%s</label>',
2551                  __( 'Name' ),
2552                  ( $req ? $required_indicator : '' )
2553              ),
2554              sprintf(
2555                  '<input id="author" name="author" type="text" value="%s" size="30" maxlength="245" autocomplete="name"%s />',
2556                  esc_attr( $commenter['comment_author'] ),
2557                  ( $req ? $required_attribute : '' )
2558              )
2559          ),
2560          'email'  => sprintf(
2561              '<p class="comment-form-email">%s %s</p>',
2562              sprintf(
2563                  '<label for="email">%s%s</label>',
2564                  __( 'Email' ),
2565                  ( $req ? $required_indicator : '' )
2566              ),
2567              sprintf(
2568                  '<input id="email" name="email" %s value="%s" size="30" maxlength="100" aria-describedby="email-notes" autocomplete="email"%s />',
2569                  ( $html5 ? 'type="email"' : 'type="text"' ),
2570                  esc_attr( $commenter['comment_author_email'] ),
2571                  ( $req ? $required_attribute : '' )
2572              )
2573          ),
2574          'url'    => sprintf(
2575              '<p class="comment-form-url">%s %s</p>',
2576              sprintf(
2577                  '<label for="url">%s</label>',
2578                  __( 'Website' )
2579              ),
2580              sprintf(
2581                  '<input id="url" name="url" %s value="%s" size="30" maxlength="200" autocomplete="url" />',
2582                  ( $html5 ? 'type="url"' : 'type="text"' ),
2583                  esc_attr( $commenter['comment_author_url'] )
2584              )
2585          ),
2586      );
2587  
2588      if ( has_action( 'set_comment_cookies', 'wp_set_comment_cookies' ) && get_option( 'show_comments_cookies_opt_in' ) ) {
2589          $consent = empty( $commenter['comment_author_email'] ) ? '' : $checked_attribute;
2590  
2591          $fields['cookies'] = sprintf(
2592              '<p class="comment-form-cookies-consent">%s %s</p>',
2593              sprintf(
2594                  '<input id="wp-comment-cookies-consent" name="wp-comment-cookies-consent" type="checkbox" value="yes"%s />',
2595                  $consent
2596              ),
2597              sprintf(
2598                  '<label for="wp-comment-cookies-consent">%s</label>',
2599                  __( 'Save my name, email, and website in this browser for the next time I comment.' )
2600              )
2601          );
2602  
2603          // Ensure that the passed fields include cookies consent.
2604          if ( isset( $args['fields'] ) && ! isset( $args['fields']['cookies'] ) ) {
2605              $args['fields']['cookies'] = $fields['cookies'];
2606          }
2607      }
2608  
2609      $original_fields = $fields;
2610  
2611      /**
2612       * Filters the default comment form fields.
2613       *
2614       * @since 3.0.0
2615       *
2616       * @param string[] $fields Array of the default comment fields.
2617       */
2618      $fields = apply_filters( 'comment_form_default_fields', $fields );
2619  
2620      $defaults = array(
2621          'fields'               => $fields,
2622          'comment_field'        => sprintf(
2623              '<p class="comment-form-comment">%s %s</p>',
2624              sprintf(
2625                  '<label for="comment">%s%s</label>',
2626                  _x( 'Comment', 'noun' ),
2627                  $required_indicator
2628              ),
2629              '<textarea id="comment" name="comment" cols="45" rows="8" maxlength="65525"' . $required_attribute . '></textarea>'
2630          ),
2631          'must_log_in'          => sprintf(
2632              '<p class="must-log-in">%s</p>',
2633              sprintf(
2634                  /* translators: %s: Login URL. */
2635                  __( 'You must be <a href="%s">logged in</a> to post a comment.' ),
2636                  /** This filter is documented in wp-includes/link-template.php */
2637                  wp_login_url( apply_filters( 'the_permalink', get_permalink( $post_id ), $post_id ) )
2638              )
2639          ),
2640          'logged_in_as'         => sprintf(
2641              '<p class="logged-in-as">%s%s</p>',
2642              sprintf(
2643                  /* translators: 1: User name, 2: Edit user link, 3: Logout URL. */
2644                  __( 'Logged in as %1$s. <a href="%2$s">Edit your profile</a>. <a href="%3$s">Log out?</a>' ),
2645                  $user_identity,
2646                  get_edit_user_link(),
2647                  /** This filter is documented in wp-includes/link-template.php */
2648                  wp_logout_url( apply_filters( 'the_permalink', get_permalink( $post_id ), $post_id ) )
2649              ),
2650              $required_text
2651          ),
2652          'comment_notes_before' => sprintf(
2653              '<p class="comment-notes">%s%s</p>',
2654              sprintf(
2655                  '<span id="email-notes">%s</span>',
2656                  __( 'Your email address will not be published.' )
2657              ),
2658              $required_text
2659          ),
2660          'comment_notes_after'  => '',
2661          'action'               => site_url( '/wp-comments-post.php' ),
2662          'novalidate'           => false,
2663          'id_form'              => 'commentform',
2664          'id_submit'            => 'submit',
2665          'class_container'      => 'comment-respond',
2666          'class_form'           => 'comment-form',
2667          'class_submit'         => 'submit',
2668          'name_submit'          => 'submit',
2669          'title_reply'          => __( 'Leave a Reply' ),
2670          /* translators: %s: Author of the comment being replied to. */
2671          'title_reply_to'       => __( 'Leave a Reply to %s' ),
2672          'title_reply_before'   => '<h3 id="reply-title" class="comment-reply-title">',
2673          'title_reply_after'    => '</h3>',
2674          'cancel_reply_before'  => ' <small>',
2675          'cancel_reply_after'   => '</small>',
2676          'cancel_reply_link'    => __( 'Cancel reply' ),
2677          'label_submit'         => __( 'Post Comment' ),
2678          'submit_button'        => '<input name="%1$s" type="submit" id="%2$s" class="%3$s" value="%4$s" />',
2679          'submit_field'         => '<p class="form-submit">%1$s %2$s</p>',
2680          'format'               => 'xhtml',
2681      );
2682  
2683      /**
2684       * Filters the comment form default arguments.
2685       *
2686       * Use {@see 'comment_form_default_fields'} to filter the comment fields.
2687       *
2688       * @since 3.0.0
2689       *
2690       * @param array $defaults The default comment form arguments.
2691       */
2692      $args = wp_parse_args( $args, apply_filters( 'comment_form_defaults', $defaults ) );
2693  
2694      // Ensure that the filtered arguments contain all required default values.
2695      $args = array_merge( $defaults, $args );
2696  
2697      // Remove `aria-describedby` from the email field if there's no associated description.
2698      if ( isset( $args['fields']['email'] ) && ! str_contains( $args['comment_notes_before'], 'id="email-notes"' ) ) {
2699          $args['fields']['email'] = str_replace(
2700              ' aria-describedby="email-notes"',
2701              '',
2702              $args['fields']['email']
2703          );
2704      }
2705  
2706      /**
2707       * Fires before the comment form.
2708       *
2709       * @since 3.0.0
2710       */
2711      do_action( 'comment_form_before' );
2712      ?>
2713      <div id="respond" class="<?php echo esc_attr( $args['class_container'] ); ?>">
2714          <?php
2715          echo $args['title_reply_before'];
2716  
2717          comment_form_title( $args['title_reply'], $args['title_reply_to'], true, $post_id );
2718  
2719          if ( get_option( 'thread_comments' ) ) {
2720              echo $args['cancel_reply_before'];
2721  
2722              cancel_comment_reply_link( $args['cancel_reply_link'] );
2723  
2724              echo $args['cancel_reply_after'];
2725          }
2726  
2727          echo $args['title_reply_after'];
2728  
2729          if ( get_option( 'comment_registration' ) && ! is_user_logged_in() ) :
2730  
2731              echo $args['must_log_in'];
2732              /**
2733               * Fires after the HTML-formatted 'must log in after' message in the comment form.
2734               *
2735               * @since 3.0.0
2736               */
2737              do_action( 'comment_form_must_log_in_after' );
2738  
2739          else :
2740  
2741              printf(
2742                  '<form action="%s" method="post" id="%s" class="%s"%s>',
2743                  esc_url( $args['action'] ),
2744                  esc_attr( $args['id_form'] ),
2745                  esc_attr( $args['class_form'] ),
2746                  ( $args['novalidate'] ? ' novalidate' : '' )
2747              );
2748  
2749              /**
2750               * Fires at the top of the comment form, inside the form tag.
2751               *
2752               * @since 3.0.0
2753               */
2754              do_action( 'comment_form_top' );
2755  
2756              if ( is_user_logged_in() ) :
2757  
2758                  /**
2759                   * Filters the 'logged in' message for the comment form for display.
2760                   *
2761                   * @since 3.0.0
2762                   *
2763                   * @param string $args_logged_in The HTML for the 'logged in as [user]' message,
2764                   *                               the Edit profile link, and the Log out link.
2765                   * @param array  $commenter      An array containing the comment author's
2766                   *                               username, email, and URL.
2767                   * @param string $user_identity  If the commenter is a registered user,
2768                   *                               the display name, blank otherwise.
2769                   */
2770                  echo apply_filters( 'comment_form_logged_in', $args['logged_in_as'], $commenter, $user_identity );
2771  
2772                  /**
2773                   * Fires after the is_user_logged_in() check in the comment form.
2774                   *
2775                   * @since 3.0.0
2776                   *
2777                   * @param array  $commenter     An array containing the comment author's
2778                   *                              username, email, and URL.
2779                   * @param string $user_identity If the commenter is a registered user,
2780                   *                              the display name, blank otherwise.
2781                   */
2782                  do_action( 'comment_form_logged_in_after', $commenter, $user_identity );
2783  
2784              else :
2785  
2786                  echo $args['comment_notes_before'];
2787  
2788              endif;
2789  
2790              // Prepare an array of all fields, including the textarea.
2791              $comment_fields = array( 'comment' => $args['comment_field'] ) + (array) $args['fields'];
2792  
2793              /**
2794               * Filters the comment form fields, including the textarea.
2795               *
2796               * @since 4.4.0
2797               *
2798               * @param array $comment_fields The comment fields.
2799               */
2800              $comment_fields = apply_filters( 'comment_form_fields', $comment_fields );
2801  
2802              // Get an array of field names, excluding the textarea.
2803              $comment_field_keys = array_diff( array_keys( $comment_fields ), array( 'comment' ) );
2804  
2805              // Get the first and the last field name, excluding the textarea.
2806              $first_field = reset( $comment_field_keys );
2807              $last_field  = end( $comment_field_keys );
2808  
2809              foreach ( $comment_fields as $name => $field ) {
2810  
2811                  if ( 'comment' === $name ) {
2812  
2813                      /**
2814                       * Filters the content of the comment textarea field for display.
2815                       *
2816                       * @since 3.0.0
2817                       *
2818                       * @param string $args_comment_field The content of the comment textarea field.
2819                       */
2820                      echo apply_filters( 'comment_form_field_comment', $field );
2821  
2822                      echo $args['comment_notes_after'];
2823  
2824                  } elseif ( ! is_user_logged_in() || ! isset( $original_fields[ $name ] ) ) {
2825  
2826                      if ( $first_field === $name ) {
2827                          /**
2828                           * Fires before the comment fields in the comment form, excluding the textarea.
2829                           *
2830                           * @since 3.0.0
2831                           */
2832                          do_action( 'comment_form_before_fields' );
2833                      }
2834  
2835                      /**
2836                       * Filters a comment form field for display.
2837                       *
2838                       * The dynamic portion of the hook name, `$name`, refers to the name
2839                       * of the comment form field.
2840                       *
2841                       * Possible hook names include:
2842                       *
2843                       *  - `comment_form_field_comment`
2844                       *  - `comment_form_field_author`
2845                       *  - `comment_form_field_email`
2846                       *  - `comment_form_field_url`
2847                       *  - `comment_form_field_cookies`
2848                       *
2849                       * @since 3.0.0
2850                       *
2851                       * @param string $field The HTML-formatted output of the comment form field.
2852                       */
2853                      echo apply_filters( "comment_form_field_{$name}", $field ) . "\n";
2854  
2855                      if ( $last_field === $name ) {
2856                          /**
2857                           * Fires after the comment fields in the comment form, excluding the textarea.
2858                           *
2859                           * @since 3.0.0
2860                           */
2861                          do_action( 'comment_form_after_fields' );
2862                      }
2863                  }
2864              }
2865  
2866              $submit_button = sprintf(
2867                  $args['submit_button'],
2868                  esc_attr( $args['name_submit'] ),
2869                  esc_attr( $args['id_submit'] ),
2870                  esc_attr( $args['class_submit'] ),
2871                  esc_attr( $args['label_submit'] )
2872              );
2873  
2874              /**
2875               * Filters the submit button for the comment form to display.
2876               *
2877               * @since 4.2.0
2878               *
2879               * @param string $submit_button HTML markup for the submit button.
2880               * @param array  $args          Arguments passed to comment_form().
2881               */
2882              $submit_button = apply_filters( 'comment_form_submit_button', $submit_button, $args );
2883  
2884              $submit_field = sprintf(
2885                  $args['submit_field'],
2886                  $submit_button,
2887                  get_comment_id_fields( $post_id )
2888              );
2889  
2890              /**
2891               * Filters the submit field for the comment form to display.
2892               *
2893               * The submit field includes the submit button, hidden fields for the
2894               * comment form, and any wrapper markup.
2895               *
2896               * @since 4.2.0
2897               *
2898               * @param string $submit_field HTML markup for the submit field.
2899               * @param array  $args         Arguments passed to comment_form().
2900               */
2901              echo apply_filters( 'comment_form_submit_field', $submit_field, $args );
2902  
2903              /**
2904               * Fires at the bottom of the comment form, inside the closing form tag.
2905               *
2906               * @since 1.5.0
2907               *
2908               * @param int $post_id The post ID.
2909               */
2910              do_action( 'comment_form', $post_id );
2911  
2912              echo '</form>';
2913  
2914          endif;
2915          ?>
2916      </div><!-- #respond -->
2917      <?php
2918  
2919      /**
2920       * Fires after the comment form.
2921       *
2922       * @since 3.0.0
2923       */
2924      do_action( 'comment_form_after' );
2925  }


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