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   1  <?php
   2  /**
   3   * Deprecated functions from past WordPress versions. You shouldn't use these
   4   * functions and look for the alternatives instead. The functions will be
   5   * removed in a later version.
   6   *
   7   * @package WordPress
   8   * @subpackage Deprecated
   9   */
  10  
  11  /*
  12   * Deprecated functions come here to die.
  13   */
  14  
  15  /**
  16   * Retrieves all post data for a given post.
  17   *
  18   * @since 0.71
  19   * @deprecated 1.5.1 Use get_post()
  20   * @see get_post()
  21   *
  22   * @param int $postid Post ID.
  23   * @return array Post data.
  24   */
  25  function get_postdata($postid) {
  26      _deprecated_function( __FUNCTION__, '1.5.1', 'get_post()' );
  27  
  28      $post = get_post($postid);
  29  
  30      $postdata = array (
  31          'ID' => $post->ID,
  32          'Author_ID' => $post->post_author,
  33          'Date' => $post->post_date,
  34          'Content' => $post->post_content,
  35          'Excerpt' => $post->post_excerpt,
  36          'Title' => $post->post_title,
  37          'Category' => $post->post_category,
  38          'post_status' => $post->post_status,
  39          'comment_status' => $post->comment_status,
  40          'ping_status' => $post->ping_status,
  41          'post_password' => $post->post_password,
  42          'to_ping' => $post->to_ping,
  43          'pinged' => $post->pinged,
  44          'post_type' => $post->post_type,
  45          'post_name' => $post->post_name
  46      );
  47  
  48      return $postdata;
  49  }
  50  
  51  /**
  52   * Sets up the WordPress Loop.
  53   *
  54   * Use The Loop instead.
  55   *
  56   * @link https://developer.wordpress.org/themes/basics/the-loop/
  57   *
  58   * @since 1.0.1
  59   * @deprecated 1.5.0
  60   */
  61  function start_wp() {
  62      global $wp_query;
  63  
  64      _deprecated_function( __FUNCTION__, '1.5.0', __('new WordPress Loop') );
  65  
  66      // Since the old style loop is being used, advance the query iterator here.
  67      $wp_query->next_post();
  68  
  69      setup_postdata( get_post() );
  70  }
  71  
  72  /**
  73   * Returns or prints a category ID.
  74   *
  75   * @since 0.71
  76   * @deprecated 0.71 Use get_the_category()
  77   * @see get_the_category()
  78   *
  79   * @param bool $echo Optional. Whether to echo the output. Default true.
  80   * @return int Category ID.
  81   */
  82  function the_category_ID($echo = true) {
  83      _deprecated_function( __FUNCTION__, '0.71', 'get_the_category()' );
  84  
  85      // Grab the first cat in the list.
  86      $categories = get_the_category();
  87      $cat = $categories[0]->term_id;
  88  
  89      if ( $echo )
  90          echo $cat;
  91  
  92      return $cat;
  93  }
  94  
  95  /**
  96   * Prints a category with optional text before and after.
  97   *
  98   * @since 0.71
  99   * @deprecated 0.71 Use get_the_category_by_ID()
 100   * @see get_the_category_by_ID()
 101   *
 102   * @param string $before Optional. Text to display before the category. Default empty.
 103   * @param string $after  Optional. Text to display after the category. Default empty.
 104   */
 105  function the_category_head( $before = '', $after = '' ) {
 106      global $currentcat, $previouscat;
 107  
 108      _deprecated_function( __FUNCTION__, '0.71', 'get_the_category_by_ID()' );
 109  
 110      // Grab the first cat in the list.
 111      $categories = get_the_category();
 112      $currentcat = $categories[0]->category_id;
 113      if ( $currentcat != $previouscat ) {
 114          echo $before;
 115          echo get_the_category_by_ID($currentcat);
 116          echo $after;
 117          $previouscat = $currentcat;
 118      }
 119  }
 120  
 121  /**
 122   * Prints a link to the previous post.
 123   *
 124   * @since 1.5.0
 125   * @deprecated 2.0.0 Use previous_post_link()
 126   * @see previous_post_link()
 127   *
 128   * @param string $format
 129   * @param string $previous
 130   * @param string $title
 131   * @param string $in_same_cat
 132   * @param int    $limitprev
 133   * @param string $excluded_categories
 134   */
 135  function previous_post($format='%', $previous='previous post: ', $title='yes', $in_same_cat='no', $limitprev=1, $excluded_categories='') {
 136  
 137      _deprecated_function( __FUNCTION__, '2.0.0', 'previous_post_link()' );
 138  
 139      if ( empty($in_same_cat) || 'no' == $in_same_cat )
 140          $in_same_cat = false;
 141      else
 142          $in_same_cat = true;
 143  
 144      $post = get_previous_post($in_same_cat, $excluded_categories);
 145  
 146      if ( !$post )
 147          return;
 148  
 149      $string = '<a href="'.get_permalink($post->ID).'">'.$previous;
 150      if ( 'yes' == $title )
 151          $string .= apply_filters('the_title', $post->post_title, $post->ID);
 152      $string .= '</a>';
 153      $format = str_replace('%', $string, $format);
 154      echo $format;
 155  }
 156  
 157  /**
 158   * Prints link to the next post.
 159   *
 160   * @since 0.71
 161   * @deprecated 2.0.0 Use next_post_link()
 162   * @see next_post_link()
 163   *
 164   * @param string $format
 165   * @param string $next
 166   * @param string $title
 167   * @param string $in_same_cat
 168   * @param int $limitnext
 169   * @param string $excluded_categories
 170   */
 171  function next_post($format='%', $next='next post: ', $title='yes', $in_same_cat='no', $limitnext=1, $excluded_categories='') {
 172      _deprecated_function( __FUNCTION__, '2.0.0', 'next_post_link()' );
 173  
 174      if ( empty($in_same_cat) || 'no' == $in_same_cat )
 175          $in_same_cat = false;
 176      else
 177          $in_same_cat = true;
 178  
 179      $post = get_next_post($in_same_cat, $excluded_categories);
 180  
 181      if ( !$post    )
 182          return;
 183  
 184      $string = '<a href="'.get_permalink($post->ID).'">'.$next;
 185      if ( 'yes' == $title )
 186          $string .= apply_filters('the_title', $post->post_title, $post->ID);
 187      $string .= '</a>';
 188      $format = str_replace('%', $string, $format);
 189      echo $format;
 190  }
 191  
 192  /**
 193   * Whether user can create a post.
 194   *
 195   * @since 1.5.0
 196   * @deprecated 2.0.0 Use current_user_can()
 197   * @see current_user_can()
 198   *
 199   * @param int $user_id
 200   * @param int $blog_id Not Used
 201   * @param int $category_id Not Used
 202   * @return bool
 203   */
 204  function user_can_create_post($user_id, $blog_id = 1, $category_id = 'None') {
 205      _deprecated_function( __FUNCTION__, '2.0.0', 'current_user_can()' );
 206  
 207      $author_data = get_userdata($user_id);
 208      return ($author_data->user_level > 1);
 209  }
 210  
 211  /**
 212   * Whether user can create a post.
 213   *
 214   * @since 1.5.0
 215   * @deprecated 2.0.0 Use current_user_can()
 216   * @see current_user_can()
 217   *
 218   * @param int $user_id
 219   * @param int $blog_id Not Used
 220   * @param int $category_id Not Used
 221   * @return bool
 222   */
 223  function user_can_create_draft($user_id, $blog_id = 1, $category_id = 'None') {
 224      _deprecated_function( __FUNCTION__, '2.0.0', 'current_user_can()' );
 225  
 226      $author_data = get_userdata($user_id);
 227      return ($author_data->user_level >= 1);
 228  }
 229  
 230  /**
 231   * Whether user can edit a post.
 232   *
 233   * @since 1.5.0
 234   * @deprecated 2.0.0 Use current_user_can()
 235   * @see current_user_can()
 236   *
 237   * @param int $user_id
 238   * @param int $post_id
 239   * @param int $blog_id Not Used
 240   * @return bool
 241   */
 242  function user_can_edit_post($user_id, $post_id, $blog_id = 1) {
 243      _deprecated_function( __FUNCTION__, '2.0.0', 'current_user_can()' );
 244  
 245      $author_data = get_userdata($user_id);
 246      $post = get_post($post_id);
 247      $post_author_data = get_userdata($post->post_author);
 248  
 249      if ( (($user_id == $post_author_data->ID) && !($post->post_status == 'publish' && $author_data->user_level < 2))
 250              || ($author_data->user_level > $post_author_data->user_level)
 251              || ($author_data->user_level >= 10) ) {
 252          return true;
 253      } else {
 254          return false;
 255      }
 256  }
 257  
 258  /**
 259   * Whether user can delete a post.
 260   *
 261   * @since 1.5.0
 262   * @deprecated 2.0.0 Use current_user_can()
 263   * @see current_user_can()
 264   *
 265   * @param int $user_id
 266   * @param int $post_id
 267   * @param int $blog_id Not Used
 268   * @return bool
 269   */
 270  function user_can_delete_post($user_id, $post_id, $blog_id = 1) {
 271      _deprecated_function( __FUNCTION__, '2.0.0', 'current_user_can()' );
 272  
 273      // right now if one can edit, one can delete
 274      return user_can_edit_post($user_id, $post_id, $blog_id);
 275  }
 276  
 277  /**
 278   * Whether user can set new posts' dates.
 279   *
 280   * @since 1.5.0
 281   * @deprecated 2.0.0 Use current_user_can()
 282   * @see current_user_can()
 283   *
 284   * @param int $user_id
 285   * @param int $blog_id Not Used
 286   * @param int $category_id Not Used
 287   * @return bool
 288   */
 289  function user_can_set_post_date($user_id, $blog_id = 1, $category_id = 'None') {
 290      _deprecated_function( __FUNCTION__, '2.0.0', 'current_user_can()' );
 291  
 292      $author_data = get_userdata($user_id);
 293      return (($author_data->user_level > 4) && user_can_create_post($user_id, $blog_id, $category_id));
 294  }
 295  
 296  /**
 297   * Whether user can delete a post.
 298   *
 299   * @since 1.5.0
 300   * @deprecated 2.0.0 Use current_user_can()
 301   * @see current_user_can()
 302   *
 303   * @param int $user_id
 304   * @param int $post_id
 305   * @param int $blog_id Not Used
 306   * @return bool returns true if $user_id can edit $post_id's date
 307   */
 308  function user_can_edit_post_date($user_id, $post_id, $blog_id = 1) {
 309      _deprecated_function( __FUNCTION__, '2.0.0', 'current_user_can()' );
 310  
 311      $author_data = get_userdata($user_id);
 312      return (($author_data->user_level > 4) && user_can_edit_post($user_id, $post_id, $blog_id));
 313  }
 314  
 315  /**
 316   * Whether user can delete a post.
 317   *
 318   * @since 1.5.0
 319   * @deprecated 2.0.0 Use current_user_can()
 320   * @see current_user_can()
 321   *
 322   * @param int $user_id
 323   * @param int $post_id
 324   * @param int $blog_id Not Used
 325   * @return bool returns true if $user_id can edit $post_id's comments
 326   */
 327  function user_can_edit_post_comments($user_id, $post_id, $blog_id = 1) {
 328      _deprecated_function( __FUNCTION__, '2.0.0', 'current_user_can()' );
 329  
 330      // right now if one can edit a post, one can edit comments made on it
 331      return user_can_edit_post($user_id, $post_id, $blog_id);
 332  }
 333  
 334  /**
 335   * Whether user can delete a post.
 336   *
 337   * @since 1.5.0
 338   * @deprecated 2.0.0 Use current_user_can()
 339   * @see current_user_can()
 340   *
 341   * @param int $user_id
 342   * @param int $post_id
 343   * @param int $blog_id Not Used
 344   * @return bool returns true if $user_id can delete $post_id's comments
 345   */
 346  function user_can_delete_post_comments($user_id, $post_id, $blog_id = 1) {
 347      _deprecated_function( __FUNCTION__, '2.0.0', 'current_user_can()' );
 348  
 349      // right now if one can edit comments, one can delete comments
 350      return user_can_edit_post_comments($user_id, $post_id, $blog_id);
 351  }
 352  
 353  /**
 354   * Can user can edit other user.
 355   *
 356   * @since 1.5.0
 357   * @deprecated 2.0.0 Use current_user_can()
 358   * @see current_user_can()
 359   *
 360   * @param int $user_id
 361   * @param int $other_user
 362   * @return bool
 363   */
 364  function user_can_edit_user($user_id, $other_user) {
 365      _deprecated_function( __FUNCTION__, '2.0.0', 'current_user_can()' );
 366  
 367      $user  = get_userdata($user_id);
 368      $other = get_userdata($other_user);
 369      if ( $user->user_level > $other->user_level || $user->user_level > 8 || $user->ID == $other->ID )
 370          return true;
 371      else
 372          return false;
 373  }
 374  
 375  /**
 376   * Gets the links associated with category $cat_name.
 377   *
 378   * @since 0.71
 379   * @deprecated 2.1.0 Use get_bookmarks()
 380   * @see get_bookmarks()
 381   *
 382   * @param string $cat_name Optional. The category name to use. If no match is found uses all.
 383   * @param string $before Optional. The html to output before the link.
 384   * @param string $after Optional. The html to output after the link.
 385   * @param string $between Optional. The html to output between the link/image and its description. Not used if no image or $show_images is true.
 386   * @param bool $show_images Optional. Whether to show images (if defined).
 387   * @param string $orderby Optional. The order to output the links. E.g. 'id', 'name', 'url', 'description' or 'rating'. Or maybe owner.
 388   *        If you start the name with an underscore the order will be reversed. You can also specify 'rand' as the order which will return links in a
 389   *        random order.
 390   * @param bool $show_description Optional. Whether to show the description if show_images=false/not defined.
 391   * @param bool $show_rating Optional. Show rating stars/chars.
 392   * @param int $limit        Optional. Limit to X entries. If not specified, all entries are shown.
 393   * @param int $show_updated Optional. Whether to show last updated timestamp
 394   */
 395  function get_linksbyname($cat_name = "noname", $before = '', $after = '<br />', $between = " ", $show_images = true, $orderby = 'id',
 396                          $show_description = true, $show_rating = false,
 397                          $limit = -1, $show_updated = 0) {
 398      _deprecated_function( __FUNCTION__, '2.1.0', 'get_bookmarks()' );
 399  
 400      $cat_id = -1;
 401      $cat = get_term_by('name', $cat_name, 'link_category');
 402      if ( $cat )
 403          $cat_id = $cat->term_id;
 404  
 405      get_links($cat_id, $before, $after, $between, $show_images, $orderby, $show_description, $show_rating, $limit, $show_updated);
 406  }
 407  
 408  /**
 409   * Gets the links associated with the named category.
 410   *
 411   * @since 1.0.1
 412   * @deprecated 2.1.0 Use wp_list_bookmarks()
 413   * @see wp_list_bookmarks()
 414   *
 415   * @param string $category The category to use.
 416   * @param string $args
 417   * @return string|null
 418   */
 419  function wp_get_linksbyname($category, $args = '') {
 420      _deprecated_function(__FUNCTION__, '2.1.0', 'wp_list_bookmarks()');
 421  
 422      $defaults = array(
 423          'after' => '<br />',
 424          'before' => '',
 425          'categorize' => 0,
 426          'category_after' => '',
 427          'category_before' => '',
 428          'category_name' => $category,
 429          'show_description' => 1,
 430          'title_li' => '',
 431      );
 432  
 433      $parsed_args = wp_parse_args( $args, $defaults );
 434  
 435      return wp_list_bookmarks($parsed_args);
 436  }
 437  
 438  /**
 439   * Gets an array of link objects associated with category $cat_name.
 440   *
 441   *     $links = get_linkobjectsbyname( 'fred' );
 442   *     foreach ( $links as $link ) {
 443   *          echo '<li>' . $link->link_name . '</li>';
 444   *     }
 445   *
 446   * @since 1.0.1
 447   * @deprecated 2.1.0 Use get_bookmarks()
 448   * @see get_bookmarks()
 449   *
 450   * @param string $cat_name The category name to use. If no match is found uses all.
 451   * @param string $orderby The order to output the links. E.g. 'id', 'name', 'url', 'description', or 'rating'.
 452   *        Or maybe owner. If you start the name with an underscore the order will be reversed. You can also
 453   *        specify 'rand' as the order which will return links in a random order.
 454   * @param int $limit Limit to X entries. If not specified, all entries are shown.
 455   * @return array
 456   */
 457  function get_linkobjectsbyname($cat_name = "noname" , $orderby = 'name', $limit = -1) {
 458      _deprecated_function( __FUNCTION__, '2.1.0', 'get_bookmarks()' );
 459  
 460      $cat_id = -1;
 461      $cat = get_term_by('name', $cat_name, 'link_category');
 462      if ( $cat )
 463          $cat_id = $cat->term_id;
 464  
 465      return get_linkobjects($cat_id, $orderby, $limit);
 466  }
 467  
 468  /**
 469   * Gets an array of link objects associated with category n.
 470   *
 471   * Usage:
 472   *
 473   *     $links = get_linkobjects(1);
 474   *     if ($links) {
 475   *         foreach ($links as $link) {
 476   *             echo '<li>'.$link->link_name.'<br />'.$link->link_description.'</li>';
 477   *         }
 478   *     }
 479   *
 480   * Fields are:
 481   *
 482   * - link_id
 483   * - link_url
 484   * - link_name
 485   * - link_image
 486   * - link_target
 487   * - link_category
 488   * - link_description
 489   * - link_visible
 490   * - link_owner
 491   * - link_rating
 492   * - link_updated
 493   * - link_rel
 494   * - link_notes
 495   *
 496   * @since 1.0.1
 497   * @deprecated 2.1.0 Use get_bookmarks()
 498   * @see get_bookmarks()
 499   *
 500   * @param int $category The category to use. If no category supplied uses all
 501   * @param string $orderby the order to output the links. E.g. 'id', 'name', 'url',
 502   *        'description', or 'rating'. Or maybe owner. If you start the name with an
 503   *        underscore the order will be reversed. You can also specify 'rand' as the
 504   *        order which will return links in a random order.
 505   * @param int $limit Limit to X entries. If not specified, all entries are shown.
 506   * @return array
 507   */
 508  function get_linkobjects($category = 0, $orderby = 'name', $limit = 0) {
 509      _deprecated_function( __FUNCTION__, '2.1.0', 'get_bookmarks()' );
 510  
 511      $links = get_bookmarks( array( 'category' => $category, 'orderby' => $orderby, 'limit' => $limit ) ) ;
 512  
 513      $links_array = array();
 514      foreach ($links as $link)
 515          $links_array[] = $link;
 516  
 517      return $links_array;
 518  }
 519  
 520  /**
 521   * Gets the links associated with category 'cat_name' and display rating stars/chars.
 522   *
 523   * @since 0.71
 524   * @deprecated 2.1.0 Use get_bookmarks()
 525   * @see get_bookmarks()
 526   *
 527   * @param string $cat_name The category name to use. If no match is found uses all
 528   * @param string $before The html to output before the link
 529   * @param string $after The html to output after the link
 530   * @param string $between The html to output between the link/image and its description. Not used if no image or show_images is true
 531   * @param bool $show_images Whether to show images (if defined).
 532   * @param string $orderby the order to output the links. E.g. 'id', 'name', 'url',
 533   *        'description', or 'rating'. Or maybe owner. If you start the name with an
 534   *        underscore the order will be reversed. You can also specify 'rand' as the
 535   *        order which will return links in a random order.
 536   * @param bool $show_description Whether to show the description if show_images=false/not defined
 537   * @param int $limit Limit to X entries. If not specified, all entries are shown.
 538   * @param int $show_updated Whether to show last updated timestamp
 539   */
 540  function get_linksbyname_withrating($cat_name = "noname", $before = '', $after = '<br />', $between = " ",
 541                                      $show_images = true, $orderby = 'id', $show_description = true, $limit = -1, $show_updated = 0) {
 542      _deprecated_function( __FUNCTION__, '2.1.0', 'get_bookmarks()' );
 543  
 544      get_linksbyname($cat_name, $before, $after, $between, $show_images, $orderby, $show_description, true, $limit, $show_updated);
 545  }
 546  
 547  /**
 548   * Gets the links associated with category n and display rating stars/chars.
 549   *
 550   * @since 0.71
 551   * @deprecated 2.1.0 Use get_bookmarks()
 552   * @see get_bookmarks()
 553   *
 554   * @param int $category The category to use. If no category supplied uses all
 555   * @param string $before The html to output before the link
 556   * @param string $after The html to output after the link
 557   * @param string $between The html to output between the link/image and its description. Not used if no image or show_images == true
 558   * @param bool $show_images Whether to show images (if defined).
 559   * @param string $orderby The order to output the links. E.g. 'id', 'name', 'url',
 560   *        'description', or 'rating'. Or maybe owner. If you start the name with an
 561   *        underscore the order will be reversed. You can also specify 'rand' as the
 562   *        order which will return links in a random order.
 563   * @param bool $show_description Whether to show the description if show_images=false/not defined.
 564   * @param int $limit Limit to X entries. If not specified, all entries are shown.
 565   * @param int $show_updated Whether to show last updated timestamp
 566   */
 567  function get_links_withrating($category = -1, $before = '', $after = '<br />', $between = " ", $show_images = true,
 568                              $orderby = 'id', $show_description = true, $limit = -1, $show_updated = 0) {
 569      _deprecated_function( __FUNCTION__, '2.1.0', 'get_bookmarks()' );
 570  
 571      get_links($category, $before, $after, $between, $show_images, $orderby, $show_description, true, $limit, $show_updated);
 572  }
 573  
 574  /**
 575   * Gets the auto_toggle setting.
 576   *
 577   * @since 0.71
 578   * @deprecated 2.1.0
 579   *
 580   * @param int $id The category to get. If no category supplied uses 0
 581   * @return int Only returns 0.
 582   */
 583  function get_autotoggle($id = 0) {
 584      _deprecated_function( __FUNCTION__, '2.1.0' );
 585      return 0;
 586  }
 587  
 588  /**
 589   * Lists categories.
 590   *
 591   * @since 0.71
 592   * @deprecated 2.1.0 Use wp_list_categories()
 593   * @see wp_list_categories()
 594   *
 595   * @param int $optionall
 596   * @param string $all
 597   * @param string $sort_column
 598   * @param string $sort_order
 599   * @param string $file
 600   * @param bool $list
 601   * @param int $optiondates
 602   * @param int $optioncount
 603   * @param int $hide_empty
 604   * @param int $use_desc_for_title
 605   * @param bool $children
 606   * @param int $child_of
 607   * @param int $categories
 608   * @param int $recurse
 609   * @param string $feed
 610   * @param string $feed_image
 611   * @param string $exclude
 612   * @param bool $hierarchical
 613   * @return false|null
 614   */
 615  function list_cats($optionall = 1, $all = 'All', $sort_column = 'ID', $sort_order = 'asc', $file = '', $list = true, $optiondates = 0,
 616                  $optioncount = 0, $hide_empty = 1, $use_desc_for_title = 1, $children=false, $child_of=0, $categories=0,
 617                  $recurse=0, $feed = '', $feed_image = '', $exclude = '', $hierarchical=false) {
 618      _deprecated_function( __FUNCTION__, '2.1.0', 'wp_list_categories()' );
 619  
 620      $query = compact('optionall', 'all', 'sort_column', 'sort_order', 'file', 'list', 'optiondates', 'optioncount', 'hide_empty', 'use_desc_for_title', 'children',
 621          'child_of', 'categories', 'recurse', 'feed', 'feed_image', 'exclude', 'hierarchical');
 622      return wp_list_cats($query);
 623  }
 624  
 625  /**
 626   * Lists categories.
 627   *
 628   * @since 1.2.0
 629   * @deprecated 2.1.0 Use wp_list_categories()
 630   * @see wp_list_categories()
 631   *
 632   * @param string|array $args
 633   * @return false|null|string
 634   */
 635  function wp_list_cats($args = '') {
 636      _deprecated_function( __FUNCTION__, '2.1.0', 'wp_list_categories()' );
 637  
 638      $parsed_args = wp_parse_args( $args );
 639  
 640      // Map to new names.
 641      if ( isset($parsed_args['optionall']) && isset($parsed_args['all']))
 642          $parsed_args['show_option_all'] = $parsed_args['all'];
 643      if ( isset($parsed_args['sort_column']) )
 644          $parsed_args['orderby'] = $parsed_args['sort_column'];
 645      if ( isset($parsed_args['sort_order']) )
 646          $parsed_args['order'] = $parsed_args['sort_order'];
 647      if ( isset($parsed_args['optiondates']) )
 648          $parsed_args['show_last_update'] = $parsed_args['optiondates'];
 649      if ( isset($parsed_args['optioncount']) )
 650          $parsed_args['show_count'] = $parsed_args['optioncount'];
 651      if ( isset($parsed_args['list']) )
 652          $parsed_args['style'] = $parsed_args['list'] ? 'list' : 'break';
 653      $parsed_args['title_li'] = '';
 654  
 655      return wp_list_categories($parsed_args);
 656  }
 657  
 658  /**
 659   * Deprecated method for generating a drop-down of categories.
 660   *
 661   * @since 0.71
 662   * @deprecated 2.1.0 Use wp_dropdown_categories()
 663   * @see wp_dropdown_categories()
 664   *
 665   * @param int $optionall
 666   * @param string $all
 667   * @param string $orderby
 668   * @param string $order
 669   * @param int $show_last_update
 670   * @param int $show_count
 671   * @param int $hide_empty
 672   * @param bool $optionnone
 673   * @param int $selected
 674   * @param int $exclude
 675   * @return string
 676   */
 677  function dropdown_cats($optionall = 1, $all = 'All', $orderby = 'ID', $order = 'asc',
 678          $show_last_update = 0, $show_count = 0, $hide_empty = 1, $optionnone = false,
 679          $selected = 0, $exclude = 0) {
 680      _deprecated_function( __FUNCTION__, '2.1.0', 'wp_dropdown_categories()' );
 681  
 682      $show_option_all = '';
 683      if ( $optionall )
 684          $show_option_all = $all;
 685  
 686      $show_option_none = '';
 687      if ( $optionnone )
 688          $show_option_none = __('None');
 689  
 690      $vars = compact('show_option_all', 'show_option_none', 'orderby', 'order',
 691                      'show_last_update', 'show_count', 'hide_empty', 'selected', 'exclude');
 692      $query = add_query_arg($vars, '');
 693      return wp_dropdown_categories($query);
 694  }
 695  
 696  /**
 697   * Lists authors.
 698   *
 699   * @since 1.2.0
 700   * @deprecated 2.1.0 Use wp_list_authors()
 701   * @see wp_list_authors()
 702   *
 703   * @param bool $optioncount
 704   * @param bool $exclude_admin
 705   * @param bool $show_fullname
 706   * @param bool $hide_empty
 707   * @param string $feed
 708   * @param string $feed_image
 709   * @return null|string
 710   */
 711  function list_authors($optioncount = false, $exclude_admin = true, $show_fullname = false, $hide_empty = true, $feed = '', $feed_image = '') {
 712      _deprecated_function( __FUNCTION__, '2.1.0', 'wp_list_authors()' );
 713  
 714      $args = compact('optioncount', 'exclude_admin', 'show_fullname', 'hide_empty', 'feed', 'feed_image');
 715      return wp_list_authors($args);
 716  }
 717  
 718  /**
 719   * Retrieves a list of post categories.
 720   *
 721   * @since 1.0.1
 722   * @deprecated 2.1.0 Use wp_get_post_categories()
 723   * @see wp_get_post_categories()
 724   *
 725   * @param int $blogid Not Used
 726   * @param int $post_ID
 727   * @return array
 728   */
 729  function wp_get_post_cats($blogid = '1', $post_ID = 0) {
 730      _deprecated_function( __FUNCTION__, '2.1.0', 'wp_get_post_categories()' );
 731      return wp_get_post_categories($post_ID);
 732  }
 733  
 734  /**
 735   * Sets the categories that the post id belongs to.
 736   *
 737   * @since 1.0.1
 738   * @deprecated 2.1.0
 739   * @deprecated Use wp_set_post_categories()
 740   * @see wp_set_post_categories()
 741   *
 742   * @param int $blogid Not used
 743   * @param int $post_ID
 744   * @param array $post_categories
 745   * @return bool|mixed
 746   */
 747  function wp_set_post_cats($blogid = '1', $post_ID = 0, $post_categories = array()) {
 748      _deprecated_function( __FUNCTION__, '2.1.0', 'wp_set_post_categories()' );
 749      return wp_set_post_categories($post_ID, $post_categories);
 750  }
 751  
 752  /**
 753   * Retrieves a list of archives.
 754   *
 755   * @since 0.71
 756   * @deprecated 2.1.0 Use wp_get_archives()
 757   * @see wp_get_archives()
 758   *
 759   * @param string $type
 760   * @param string $limit
 761   * @param string $format
 762   * @param string $before
 763   * @param string $after
 764   * @param bool $show_post_count
 765   * @return string|null
 766   */
 767  function get_archives($type='', $limit='', $format='html', $before = '', $after = '', $show_post_count = false) {
 768      _deprecated_function( __FUNCTION__, '2.1.0', 'wp_get_archives()' );
 769      $args = compact('type', 'limit', 'format', 'before', 'after', 'show_post_count');
 770      return wp_get_archives($args);
 771  }
 772  
 773  /**
 774   * Returns or Prints link to the author's posts.
 775   *
 776   * @since 1.2.0
 777   * @deprecated 2.1.0 Use get_author_posts_url()
 778   * @see get_author_posts_url()
 779   *
 780   * @param bool $echo
 781   * @param int $author_id
 782   * @param string $author_nicename Optional.
 783   * @return string|null
 784   */
 785  function get_author_link($echo, $author_id, $author_nicename = '') {
 786      _deprecated_function( __FUNCTION__, '2.1.0', 'get_author_posts_url()' );
 787  
 788      $link = get_author_posts_url($author_id, $author_nicename);
 789  
 790      if ( $echo )
 791          echo $link;
 792      return $link;
 793  }
 794  
 795  /**
 796   * Print list of pages based on arguments.
 797   *
 798   * @since 0.71
 799   * @deprecated 2.1.0 Use wp_link_pages()
 800   * @see wp_link_pages()
 801   *
 802   * @param string $before
 803   * @param string $after
 804   * @param string $next_or_number
 805   * @param string $nextpagelink
 806   * @param string $previouspagelink
 807   * @param string $pagelink
 808   * @param string $more_file
 809   * @return string
 810   */
 811  function link_pages($before='<br />', $after='<br />', $next_or_number='number', $nextpagelink='next page', $previouspagelink='previous page',
 812                      $pagelink='%', $more_file='') {
 813      _deprecated_function( __FUNCTION__, '2.1.0', 'wp_link_pages()' );
 814  
 815      $args = compact('before', 'after', 'next_or_number', 'nextpagelink', 'previouspagelink', 'pagelink', 'more_file');
 816      return wp_link_pages($args);
 817  }
 818  
 819  /**
 820   * Get value based on option.
 821   *
 822   * @since 0.71
 823   * @deprecated 2.1.0 Use get_option()
 824   * @see get_option()
 825   *
 826   * @param string $option
 827   * @return string
 828   */
 829  function get_settings($option) {
 830      _deprecated_function( __FUNCTION__, '2.1.0', 'get_option()' );
 831  
 832      return get_option($option);
 833  }
 834  
 835  /**
 836   * Print the permalink of the current post in the loop.
 837   *
 838   * @since 0.71
 839   * @deprecated 1.2.0 Use the_permalink()
 840   * @see the_permalink()
 841   */
 842  function permalink_link() {
 843      _deprecated_function( __FUNCTION__, '1.2.0', 'the_permalink()' );
 844      the_permalink();
 845  }
 846  
 847  /**
 848   * Print the permalink to the RSS feed.
 849   *
 850   * @since 0.71
 851   * @deprecated 2.3.0 Use the_permalink_rss()
 852   * @see the_permalink_rss()
 853   *
 854   * @param string $deprecated
 855   */
 856  function permalink_single_rss($deprecated = '') {
 857      _deprecated_function( __FUNCTION__, '2.3.0', 'the_permalink_rss()' );
 858      the_permalink_rss();
 859  }
 860  
 861  /**
 862   * Gets the links associated with category.
 863   *
 864   * @since 1.0.1
 865   * @deprecated 2.1.0 Use wp_list_bookmarks()
 866   * @see wp_list_bookmarks()
 867   *
 868   * @param string $args a query string
 869   * @return null|string
 870   */
 871  function wp_get_links($args = '') {
 872      _deprecated_function( __FUNCTION__, '2.1.0', 'wp_list_bookmarks()' );
 873  
 874      if ( strpos( $args, '=' ) === false ) {
 875          $cat_id = $args;
 876          $args = add_query_arg( 'category', $cat_id, $args );
 877      }
 878  
 879      $defaults = array(
 880          'after' => '<br />',
 881          'before' => '',
 882          'between' => ' ',
 883          'categorize' => 0,
 884          'category' => '',
 885          'echo' => true,
 886          'limit' => -1,
 887          'orderby' => 'name',
 888          'show_description' => true,
 889          'show_images' => true,
 890          'show_rating' => false,
 891          'show_updated' => true,
 892          'title_li' => '',
 893      );
 894  
 895      $parsed_args = wp_parse_args( $args, $defaults );
 896  
 897      return wp_list_bookmarks($parsed_args);
 898  }
 899  
 900  /**
 901   * Gets the links associated with category by id.
 902   *
 903   * @since 0.71
 904   * @deprecated 2.1.0 Use get_bookmarks()
 905   * @see get_bookmarks()
 906   *
 907   * @param int $category The category to use. If no category supplied uses all
 908   * @param string $before the html to output before the link
 909   * @param string $after the html to output after the link
 910   * @param string $between the html to output between the link/image and its description.
 911   *        Not used if no image or show_images == true
 912   * @param bool $show_images whether to show images (if defined).
 913   * @param string $orderby the order to output the links. E.g. 'id', 'name', 'url',
 914   *        'description', or 'rating'. Or maybe owner. If you start the name with an
 915   *        underscore the order will be reversed. You can also specify 'rand' as the order
 916   *        which will return links in a random order.
 917   * @param bool $show_description whether to show the description if show_images=false/not defined.
 918   * @param bool $show_rating show rating stars/chars
 919   * @param int $limit Limit to X entries. If not specified, all entries are shown.
 920   * @param int $show_updated whether to show last updated timestamp
 921   * @param bool $echo whether to echo the results, or return them instead
 922   * @return null|string
 923   */
 924  function get_links($category = -1, $before = '', $after = '<br />', $between = ' ', $show_images = true, $orderby = 'name',
 925              $show_description = true, $show_rating = false, $limit = -1, $show_updated = 1, $echo = true) {
 926      _deprecated_function( __FUNCTION__, '2.1.0', 'get_bookmarks()' );
 927  
 928      $order = 'ASC';
 929      if ( substr($orderby, 0, 1) == '_' ) {
 930          $order = 'DESC';
 931          $orderby = substr($orderby, 1);
 932      }
 933  
 934      if ( $category == -1 ) //get_bookmarks uses '' to signify all categories
 935          $category = '';
 936  
 937      $results = get_bookmarks(array('category' => $category, 'orderby' => $orderby, 'order' => $order, 'show_updated' => $show_updated, 'limit' => $limit));
 938  
 939      if ( !$results )
 940          return;
 941  
 942      $output = '';
 943  
 944      foreach ( (array) $results as $row ) {
 945          if ( !isset($row->recently_updated) )
 946              $row->recently_updated = false;
 947          $output .= $before;
 948          if ( $show_updated && $row->recently_updated )
 949              $output .= get_option('links_recently_updated_prepend');
 950          $the_link = '#';
 951          if ( !empty($row->link_url) )
 952              $the_link = esc_url($row->link_url);
 953          $rel = $row->link_rel;
 954          if ( '' != $rel )
 955              $rel = ' rel="' . $rel . '"';
 956  
 957          $desc = esc_attr(sanitize_bookmark_field('link_description', $row->link_description, $row->link_id, 'display'));
 958          $name = esc_attr(sanitize_bookmark_field('link_name', $row->link_name, $row->link_id, 'display'));
 959          $title = $desc;
 960  
 961          if ( $show_updated )
 962              if (substr($row->link_updated_f, 0, 2) != '00')
 963                  $title .= ' ('.__('Last updated') . ' ' . gmdate(get_option('links_updated_date_format'), $row->link_updated_f + (get_option('gmt_offset') * HOUR_IN_SECONDS)) . ')';
 964  
 965          if ( '' != $title )
 966              $title = ' title="' . $title . '"';
 967  
 968          $alt = ' alt="' . $name . '"';
 969  
 970          $target = $row->link_target;
 971          if ( '' != $target )
 972              $target = ' target="' . $target . '"';
 973  
 974          $output .= '<a href="' . $the_link . '"' . $rel . $title . $target. '>';
 975  
 976          if ( $row->link_image != null && $show_images ) {
 977              if ( strpos($row->link_image, 'http') !== false )
 978                  $output .= "<img src=\"$row->link_image\" $alt $title />";
 979              else // If it's a relative path
 980                  $output .= "<img src=\"" . get_option('siteurl') . "$row->link_image\" $alt $title />";
 981          } else {
 982              $output .= $name;
 983          }
 984  
 985          $output .= '</a>';
 986  
 987          if ( $show_updated && $row->recently_updated )
 988              $output .= get_option('links_recently_updated_append');
 989  
 990          if ( $show_description && '' != $desc )
 991              $output .= $between . $desc;
 992  
 993          if ($show_rating) {
 994              $output .= $between . get_linkrating($row);
 995          }
 996  
 997          $output .= "$after\n";
 998      } // end while
 999  
1000      if ( !$echo )
1001          return $output;
1002      echo $output;
1003  }
1004  
1005  /**
1006   * Output entire list of links by category.
1007   *
1008   * Output a list of all links, listed by category, using the settings in
1009   * $wpdb->linkcategories and output it as a nested HTML unordered list.
1010   *
1011   * @since 1.0.1
1012   * @deprecated 2.1.0 Use wp_list_bookmarks()
1013   * @see wp_list_bookmarks()
1014   *
1015   * @param string $order Sort link categories by 'name' or 'id'
1016   */
1017  function get_links_list($order = 'name') {
1018      _deprecated_function( __FUNCTION__, '2.1.0', 'wp_list_bookmarks()' );
1019  
1020      $order = strtolower($order);
1021  
1022      // Handle link category sorting
1023      $direction = 'ASC';
1024      if ( '_' == substr($order,0,1) ) {
1025          $direction = 'DESC';
1026          $order = substr($order,1);
1027      }
1028  
1029      if ( !isset($direction) )
1030          $direction = '';
1031  
1032      $cats = get_categories(array('type' => 'link', 'orderby' => $order, 'order' => $direction, 'hierarchical' => 0));
1033  
1034      // Display each category
1035      if ( $cats ) {
1036          foreach ( (array) $cats as $cat ) {
1037              // Handle each category.
1038  
1039              // Display the category name
1040              echo '  <li id="linkcat-' . $cat->term_id . '" class="linkcat"><h2>' . apply_filters('link_category', $cat->name ) . "</h2>\n\t<ul>\n";
1041              // Call get_links() with all the appropriate params
1042              get_links($cat->term_id, '<li>', "</li>", "\n", true, 'name', false);
1043  
1044              // Close the last category
1045              echo "\n\t</ul>\n</li>\n";
1046          }
1047      }
1048  }
1049  
1050  /**
1051   * Show the link to the links popup and the number of links.
1052   *
1053   * @since 0.71
1054   * @deprecated 2.1.0
1055   *
1056   * @param string $text the text of the link
1057   * @param int $width the width of the popup window
1058   * @param int $height the height of the popup window
1059   * @param string $file the page to open in the popup window
1060   * @param bool $count the number of links in the db
1061   */
1062  function links_popup_script($text = 'Links', $width=400, $height=400, $file='links.all.php', $count = true) {
1063      _deprecated_function( __FUNCTION__, '2.1.0' );
1064  }
1065  
1066  /**
1067   * Legacy function that retrieved the value of a link's link_rating field.
1068   *
1069   * @since 1.0.1
1070   * @deprecated 2.1.0 Use sanitize_bookmark_field()
1071   * @see sanitize_bookmark_field()
1072   *
1073   * @param object $link Link object.
1074   * @return mixed Value of the 'link_rating' field, false otherwise.
1075   */
1076  function get_linkrating( $link ) {
1077      _deprecated_function( __FUNCTION__, '2.1.0', 'sanitize_bookmark_field()' );
1078      return sanitize_bookmark_field('link_rating', $link->link_rating, $link->link_id, 'display');
1079  }
1080  
1081  /**
1082   * Gets the name of category by id.
1083   *
1084   * @since 0.71
1085   * @deprecated 2.1.0 Use get_category()
1086   * @see get_category()
1087   *
1088   * @param int $id The category to get. If no category supplied uses 0
1089   * @return string
1090   */
1091  function get_linkcatname($id = 0) {
1092      _deprecated_function( __FUNCTION__, '2.1.0', 'get_category()' );
1093  
1094      $id = (int) $id;
1095  
1096      if ( empty($id) )
1097          return '';
1098  
1099      $cats = wp_get_link_cats($id);
1100  
1101      if ( empty($cats) || ! is_array($cats) )
1102          return '';
1103  
1104      $cat_id = (int) $cats[0]; // Take the first cat.
1105  
1106      $cat = get_category($cat_id);
1107      return $cat->name;
1108  }
1109  
1110  /**
1111   * Print RSS comment feed link.
1112   *
1113   * @since 1.0.1
1114   * @deprecated 2.5.0 Use post_comments_feed_link()
1115   * @see post_comments_feed_link()
1116   *
1117   * @param string $link_text
1118   */
1119  function comments_rss_link($link_text = 'Comments RSS') {
1120      _deprecated_function( __FUNCTION__, '2.5.0', 'post_comments_feed_link()' );
1121      post_comments_feed_link($link_text);
1122  }
1123  
1124  /**
1125   * Print/Return link to category RSS2 feed.
1126   *
1127   * @since 1.2.0
1128   * @deprecated 2.5.0 Use get_category_feed_link()
1129   * @see get_category_feed_link()
1130   *
1131   * @param bool $echo
1132   * @param int $cat_ID
1133   * @return string
1134   */
1135  function get_category_rss_link($echo = false, $cat_ID = 1) {
1136      _deprecated_function( __FUNCTION__, '2.5.0', 'get_category_feed_link()' );
1137  
1138      $link = get_category_feed_link($cat_ID, 'rss2');
1139  
1140      if ( $echo )
1141          echo $link;
1142      return $link;
1143  }
1144  
1145  /**
1146   * Print/Return link to author RSS feed.
1147   *
1148   * @since 1.2.0
1149   * @deprecated 2.5.0 Use get_author_feed_link()
1150   * @see get_author_feed_link()
1151   *
1152   * @param bool $echo
1153   * @param int $author_id
1154   * @return string
1155   */
1156  function get_author_rss_link($echo = false, $author_id = 1) {
1157      _deprecated_function( __FUNCTION__, '2.5.0', 'get_author_feed_link()' );
1158  
1159      $link = get_author_feed_link($author_id);
1160      if ( $echo )
1161          echo $link;
1162      return $link;
1163  }
1164  
1165  /**
1166   * Return link to the post RSS feed.
1167   *
1168   * @since 1.5.0
1169   * @deprecated 2.2.0 Use get_post_comments_feed_link()
1170   * @see get_post_comments_feed_link()
1171   *
1172   * @return string
1173   */
1174  function comments_rss() {
1175      _deprecated_function( __FUNCTION__, '2.2.0', 'get_post_comments_feed_link()' );
1176      return esc_url( get_post_comments_feed_link() );
1177  }
1178  
1179  /**
1180   * An alias of wp_create_user().
1181   *
1182   * @since 2.0.0
1183   * @deprecated 2.0.0 Use wp_create_user()
1184   * @see wp_create_user()
1185   *
1186   * @param string $username The user's username.
1187   * @param string $password The user's password.
1188   * @param string $email    The user's email.
1189   * @return int The new user's ID.
1190   */
1191  function create_user($username, $password, $email) {
1192      _deprecated_function( __FUNCTION__, '2.0.0', 'wp_create_user()' );
1193      return wp_create_user($username, $password, $email);
1194  }
1195  
1196  /**
1197   * Unused function.
1198   *
1199   * @deprecated 2.5.0
1200   */
1201  function gzip_compression() {
1202      _deprecated_function( __FUNCTION__, '2.5.0' );
1203      return false;
1204  }
1205  
1206  /**
1207   * Retrieve an array of comment data about comment $comment_ID.
1208   *
1209   * @since 0.71
1210   * @deprecated 2.7.0 Use get_comment()
1211   * @see get_comment()
1212   *
1213   * @param int $comment_ID The ID of the comment
1214   * @param int $no_cache Whether to use the cache (cast to bool)
1215   * @param bool $include_unapproved Whether to include unapproved comments
1216   * @return array The comment data
1217   */
1218  function get_commentdata( $comment_ID, $no_cache = 0, $include_unapproved = false ) {
1219      _deprecated_function( __FUNCTION__, '2.7.0', 'get_comment()' );
1220      return get_comment($comment_ID, ARRAY_A);
1221  }
1222  
1223  /**
1224   * Retrieve the category name by the category ID.
1225   *
1226   * @since 0.71
1227   * @deprecated 2.8.0 Use get_cat_name()
1228   * @see get_cat_name()
1229   *
1230   * @param int $cat_ID Category ID
1231   * @return string category name
1232   */
1233  function get_catname( $cat_ID ) {
1234      _deprecated_function( __FUNCTION__, '2.8.0', 'get_cat_name()' );
1235      return get_cat_name( $cat_ID );
1236  }
1237  
1238  /**
1239   * Retrieve category children list separated before and after the term IDs.
1240   *
1241   * @since 1.2.0
1242   * @deprecated 2.8.0 Use get_term_children()
1243   * @see get_term_children()
1244   *
1245   * @param int $id Category ID to retrieve children.
1246   * @param string $before Optional. Prepend before category term ID.
1247   * @param string $after Optional, default is empty string. Append after category term ID.
1248   * @param array $visited Optional. Category Term IDs that have already been added.
1249   * @return string
1250   */
1251  function get_category_children( $id, $before = '/', $after = '', $visited = array() ) {
1252      _deprecated_function( __FUNCTION__, '2.8.0', 'get_term_children()' );
1253      if ( 0 == $id )
1254          return '';
1255  
1256      $chain = '';
1257      /** TODO: consult hierarchy */
1258      $cat_ids = get_all_category_ids();
1259      foreach ( (array) $cat_ids as $cat_id ) {
1260          if ( $cat_id == $id )
1261              continue;
1262  
1263          $category = get_category( $cat_id );
1264          if ( is_wp_error( $category ) )
1265              return $category;
1266          if ( $category->parent == $id && !in_array( $category->term_id, $visited ) ) {
1267              $visited[] = $category->term_id;
1268              $chain .= $before.$category->term_id.$after;
1269              $chain .= get_category_children( $category->term_id, $before, $after );
1270          }
1271      }
1272      return $chain;
1273  }
1274  
1275  /**
1276   * Retrieves all category IDs.
1277   *
1278   * @since 2.0.0
1279   * @deprecated 4.0.0 Use get_terms()
1280   * @see get_terms()
1281   *
1282   * @link https://developer.wordpress.org/reference/functions/get_all_category_ids/
1283   *
1284   * @return object List of all of the category IDs.
1285   */
1286  function get_all_category_ids() {
1287      _deprecated_function( __FUNCTION__, '4.0.0', 'get_terms()' );
1288  
1289      if ( ! $cat_ids = wp_cache_get( 'all_category_ids', 'category' ) ) {
1290          $cat_ids = get_terms(
1291              array(
1292                  'taxonomy' => 'category',
1293                  'fields'   => 'ids',
1294                  'get'      => 'all',
1295              )
1296          );
1297          wp_cache_add( 'all_category_ids', $cat_ids, 'category' );
1298      }
1299  
1300      return $cat_ids;
1301  }
1302  
1303  /**
1304   * Retrieve the description of the author of the current post.
1305   *
1306   * @since 1.5.0
1307   * @deprecated 2.8.0 Use get_the_author_meta()
1308   * @see get_the_author_meta()
1309   *
1310   * @return string The author's description.
1311   */
1312  function get_the_author_description() {
1313      _deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'description\')' );
1314      return get_the_author_meta('description');
1315  }
1316  
1317  /**
1318   * Display the description of the author of the current post.
1319   *
1320   * @since 1.0.0
1321   * @deprecated 2.8.0 Use the_author_meta()
1322   * @see the_author_meta()
1323   */
1324  function the_author_description() {
1325      _deprecated_function( __FUNCTION__, '2.8.0', 'the_author_meta(\'description\')' );
1326      the_author_meta('description');
1327  }
1328  
1329  /**
1330   * Retrieve the login name of the author of the current post.
1331   *
1332   * @since 1.5.0
1333   * @deprecated 2.8.0 Use get_the_author_meta()
1334   * @see get_the_author_meta()
1335   *
1336   * @return string The author's login name (username).
1337   */
1338  function get_the_author_login() {
1339      _deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'login\')' );
1340      return get_the_author_meta('login');
1341  }
1342  
1343  /**
1344   * Display the login name of the author of the current post.
1345   *
1346   * @since 0.71
1347   * @deprecated 2.8.0 Use the_author_meta()
1348   * @see the_author_meta()
1349   */
1350  function the_author_login() {
1351      _deprecated_function( __FUNCTION__, '2.8.0', 'the_author_meta(\'login\')' );
1352      the_author_meta('login');
1353  }
1354  
1355  /**
1356   * Retrieve the first name of the author of the current post.
1357   *
1358   * @since 1.5.0
1359   * @deprecated 2.8.0 Use get_the_author_meta()
1360   * @see get_the_author_meta()
1361   *
1362   * @return string The author's first name.
1363   */
1364  function get_the_author_firstname() {
1365      _deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'first_name\')' );
1366      return get_the_author_meta('first_name');
1367  }
1368  
1369  /**
1370   * Display the first name of the author of the current post.
1371   *
1372   * @since 0.71
1373   * @deprecated 2.8.0 Use the_author_meta()
1374   * @see the_author_meta()
1375   */
1376  function the_author_firstname() {
1377      _deprecated_function( __FUNCTION__, '2.8.0', 'the_author_meta(\'first_name\')' );
1378      the_author_meta('first_name');
1379  }
1380  
1381  /**
1382   * Retrieve the last name of the author of the current post.
1383   *
1384   * @since 1.5.0
1385   * @deprecated 2.8.0 Use get_the_author_meta()
1386   * @see get_the_author_meta()
1387   *
1388   * @return string The author's last name.
1389   */
1390  function get_the_author_lastname() {
1391      _deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'last_name\')' );
1392      return get_the_author_meta('last_name');
1393  }
1394  
1395  /**
1396   * Display the last name of the author of the current post.
1397   *
1398   * @since 0.71
1399   * @deprecated 2.8.0 Use the_author_meta()
1400   * @see the_author_meta()
1401   */
1402  function the_author_lastname() {
1403      _deprecated_function( __FUNCTION__, '2.8.0', 'the_author_meta(\'last_name\')' );
1404      the_author_meta('last_name');
1405  }
1406  
1407  /**
1408   * Retrieve the nickname of the author of the current post.
1409   *
1410   * @since 1.5.0
1411   * @deprecated 2.8.0 Use get_the_author_meta()
1412   * @see get_the_author_meta()
1413   *
1414   * @return string The author's nickname.
1415   */
1416  function get_the_author_nickname() {
1417      _deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'nickname\')' );
1418      return get_the_author_meta('nickname');
1419  }
1420  
1421  /**
1422   * Display the nickname of the author of the current post.
1423   *
1424   * @since 0.71
1425   * @deprecated 2.8.0 Use the_author_meta()
1426   * @see the_author_meta()
1427   */
1428  function the_author_nickname() {
1429      _deprecated_function( __FUNCTION__, '2.8.0', 'the_author_meta(\'nickname\')' );
1430      the_author_meta('nickname');
1431  }
1432  
1433  /**
1434   * Retrieve the email of the author of the current post.
1435   *
1436   * @since 1.5.0
1437   * @deprecated 2.8.0 Use get_the_author_meta()
1438   * @see get_the_author_meta()
1439   *
1440   * @return string The author's username.
1441   */
1442  function get_the_author_email() {
1443      _deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'email\')' );
1444      return get_the_author_meta('email');
1445  }
1446  
1447  /**
1448   * Display the email of the author of the current post.
1449   *
1450   * @since 0.71
1451   * @deprecated 2.8.0 Use the_author_meta()
1452   * @see the_author_meta()
1453   */
1454  function the_author_email() {
1455      _deprecated_function( __FUNCTION__, '2.8.0', 'the_author_meta(\'email\')' );
1456      the_author_meta('email');
1457  }
1458  
1459  /**
1460   * Retrieve the ICQ number of the author of the current post.
1461   *
1462   * @since 1.5.0
1463   * @deprecated 2.8.0 Use get_the_author_meta()
1464   * @see get_the_author_meta()
1465   *
1466   * @return string The author's ICQ number.
1467   */
1468  function get_the_author_icq() {
1469      _deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'icq\')' );
1470      return get_the_author_meta('icq');
1471  }
1472  
1473  /**
1474   * Display the ICQ number of the author of the current post.
1475   *
1476   * @since 0.71
1477   * @deprecated 2.8.0 Use the_author_meta()
1478   * @see the_author_meta()
1479   */
1480  function the_author_icq() {
1481      _deprecated_function( __FUNCTION__, '2.8.0', 'the_author_meta(\'icq\')' );
1482      the_author_meta('icq');
1483  }
1484  
1485  /**
1486   * Retrieve the Yahoo! IM name of the author of the current post.
1487   *
1488   * @since 1.5.0
1489   * @deprecated 2.8.0 Use get_the_author_meta()
1490   * @see get_the_author_meta()
1491   *
1492   * @return string The author's Yahoo! IM name.
1493   */
1494  function get_the_author_yim() {
1495      _deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'yim\')' );
1496      return get_the_author_meta('yim');
1497  }
1498  
1499  /**
1500   * Display the Yahoo! IM name of the author of the current post.
1501   *
1502   * @since 0.71
1503   * @deprecated 2.8.0 Use the_author_meta()
1504   * @see the_author_meta()
1505   */
1506  function the_author_yim() {
1507      _deprecated_function( __FUNCTION__, '2.8.0', 'the_author_meta(\'yim\')' );
1508      the_author_meta('yim');
1509  }
1510  
1511  /**
1512   * Retrieve the MSN address of the author of the current post.
1513   *
1514   * @since 1.5.0
1515   * @deprecated 2.8.0 Use get_the_author_meta()
1516   * @see get_the_author_meta()
1517   *
1518   * @return string The author's MSN address.
1519   */
1520  function get_the_author_msn() {
1521      _deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'msn\')' );
1522      return get_the_author_meta('msn');
1523  }
1524  
1525  /**
1526   * Display the MSN address of the author of the current post.
1527   *
1528   * @since 0.71
1529   * @deprecated 2.8.0 Use the_author_meta()
1530   * @see the_author_meta()
1531   */
1532  function the_author_msn() {
1533      _deprecated_function( __FUNCTION__, '2.8.0', 'the_author_meta(\'msn\')' );
1534      the_author_meta('msn');
1535  }
1536  
1537  /**
1538   * Retrieve the AIM address of the author of the current post.
1539   *
1540   * @since 1.5.0
1541   * @deprecated 2.8.0 Use get_the_author_meta()
1542   * @see get_the_author_meta()
1543   *
1544   * @return string The author's AIM address.
1545   */
1546  function get_the_author_aim() {
1547      _deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'aim\')' );
1548      return get_the_author_meta('aim');
1549  }
1550  
1551  /**
1552   * Display the AIM address of the author of the current post.
1553   *
1554   * @since 0.71
1555   * @deprecated 2.8.0 Use the_author_meta('aim')
1556   * @see the_author_meta()
1557   */
1558  function the_author_aim() {
1559      _deprecated_function( __FUNCTION__, '2.8.0', 'the_author_meta(\'aim\')' );
1560      the_author_meta('aim');
1561  }
1562  
1563  /**
1564   * Retrieve the specified author's preferred display name.
1565   *
1566   * @since 1.0.0
1567   * @deprecated 2.8.0 Use get_the_author_meta()
1568   * @see get_the_author_meta()
1569   *
1570   * @param int $auth_id The ID of the author.
1571   * @return string The author's display name.
1572   */
1573  function get_author_name( $auth_id = false ) {
1574      _deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'display_name\')' );
1575      return get_the_author_meta('display_name', $auth_id);
1576  }
1577  
1578  /**
1579   * Retrieve the URL to the home page of the author of the current post.
1580   *
1581   * @since 1.5.0
1582   * @deprecated 2.8.0 Use get_the_author_meta()
1583   * @see get_the_author_meta()
1584   *
1585   * @return string The URL to the author's page.
1586   */
1587  function get_the_author_url() {
1588      _deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'url\')' );
1589      return get_the_author_meta('url');
1590  }
1591  
1592  /**
1593   * Display the URL to the home page of the author of the current post.
1594   *
1595   * @since 0.71
1596   * @deprecated 2.8.0 Use the_author_meta()
1597   * @see the_author_meta()
1598   */
1599  function the_author_url() {
1600      _deprecated_function( __FUNCTION__, '2.8.0', 'the_author_meta(\'url\')' );
1601      the_author_meta('url');
1602  }
1603  
1604  /**
1605   * Retrieve the ID of the author of the current post.
1606   *
1607   * @since 1.5.0
1608   * @deprecated 2.8.0 Use get_the_author_meta()
1609   * @see get_the_author_meta()
1610   *
1611   * @return string|int The author's ID.
1612   */
1613  function get_the_author_ID() {
1614      _deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'ID\')' );
1615      return get_the_author_meta('ID');
1616  }
1617  
1618  /**
1619   * Display the ID of the author of the current post.
1620   *
1621   * @since 0.71
1622   * @deprecated 2.8.0 Use the_author_meta()
1623   * @see the_author_meta()
1624   */
1625  function the_author_ID() {
1626      _deprecated_function( __FUNCTION__, '2.8.0', 'the_author_meta(\'ID\')' );
1627      the_author_meta('ID');
1628  }
1629  
1630  /**
1631   * Display the post content for the feed.
1632   *
1633   * For encoding the html or the $encode_html parameter, there are three possible
1634   * values. '0' will make urls footnotes and use make_url_footnote(). '1' will
1635   * encode special characters and automatically display all of the content. The
1636   * value of '2' will strip all HTML tags from the content.
1637   *
1638   * Also note that you cannot set the amount of words and not set the html
1639   * encoding. If that is the case, then the html encoding will default to 2,
1640   * which will strip all HTML tags.
1641   *
1642   * To restrict the amount of words of the content, you can use the cut
1643   * parameter. If the content is less than the amount, then there won't be any
1644   * dots added to the end. If there is content left over, then dots will be added
1645   * and the rest of the content will be removed.
1646   *
1647   * @since 0.71
1648   *
1649   * @deprecated 2.9.0 Use the_content_feed()
1650   * @see the_content_feed()
1651   *
1652   * @param string $more_link_text Optional. Text to display when more content is available but not displayed.
1653   * @param int $stripteaser Optional. Default is 0.
1654   * @param string $more_file Optional.
1655   * @param int $cut Optional. Amount of words to keep for the content.
1656   * @param int $encode_html Optional. How to encode the content.
1657   */
1658  function the_content_rss($more_link_text='(more...)', $stripteaser=0, $more_file='', $cut = 0, $encode_html = 0) {
1659      _deprecated_function( __FUNCTION__, '2.9.0', 'the_content_feed()' );
1660      $content = get_the_content($more_link_text, $stripteaser);
1661  
1662      /**
1663       * Filters the post content in the context of an RSS feed.
1664       *
1665       * @since 0.71
1666       *
1667       * @param string $content Content of the current post.
1668       */
1669      $content = apply_filters('the_content_rss', $content);
1670      if ( $cut && !$encode_html )
1671          $encode_html = 2;
1672      if ( 1== $encode_html ) {
1673          $content = esc_html($content);
1674          $cut = 0;
1675      } elseif ( 0 == $encode_html ) {
1676          $content = make_url_footnote($content);
1677      } elseif ( 2 == $encode_html ) {
1678          $content = strip_tags($content);
1679      }
1680      if ( $cut ) {
1681          $blah = explode(' ', $content);
1682          if ( count($blah) > $cut ) {
1683              $k = $cut;
1684              $use_dotdotdot = 1;
1685          } else {
1686              $k = count($blah);
1687              $use_dotdotdot = 0;
1688          }
1689  
1690          /** @todo Check performance, might be faster to use array slice instead. */
1691          for ( $i=0; $i<$k; $i++ )
1692              $excerpt .= $blah[$i].' ';
1693          $excerpt .= ($use_dotdotdot) ? '...' : '';
1694          $content = $excerpt;
1695      }
1696      $content = str_replace(']]>', ']]&gt;', $content);
1697      echo $content;
1698  }
1699  
1700  /**
1701   * Strip HTML and put links at the bottom of stripped content.
1702   *
1703   * Searches for all of the links, strips them out of the content, and places
1704   * them at the bottom of the content with numbers.
1705   *
1706   * @since 0.71
1707   * @deprecated 2.9.0
1708   *
1709   * @param string $content Content to get links
1710   * @return string HTML stripped out of content with links at the bottom.
1711   */
1712  function make_url_footnote( $content ) {
1713      _deprecated_function( __FUNCTION__, '2.9.0', '' );
1714      preg_match_all( '/<a(.+?)href=\"(.+?)\"(.*?)>(.+?)<\/a>/', $content, $matches );
1715      $links_summary = "\n";
1716      for ( $i = 0, $c = count( $matches[0] ); $i < $c; $i++ ) {
1717          $link_match = $matches[0][$i];
1718          $link_number = '['.($i+1).']';
1719          $link_url = $matches[2][$i];
1720          $link_text = $matches[4][$i];
1721          $content = str_replace( $link_match, $link_text . ' ' . $link_number, $content );
1722          $link_url = ( ( strtolower( substr( $link_url, 0, 7 ) ) != 'http://' ) && ( strtolower( substr( $link_url, 0, 8 ) ) != 'https://' ) ) ? get_option( 'home' ) . $link_url : $link_url;
1723          $links_summary .= "\n" . $link_number . ' ' . $link_url;
1724      }
1725      $content  = strip_tags( $content );
1726      $content .= $links_summary;
1727      return $content;
1728  }
1729  
1730  /**
1731   * Retrieve translated string with vertical bar context
1732   *
1733   * Quite a few times, there will be collisions with similar translatable text
1734   * found in more than two places but with different translated context.
1735   *
1736   * In order to use the separate contexts, the _c() function is used and the
1737   * translatable string uses a pipe ('|') which has the context the string is in.
1738   *
1739   * When the translated string is returned, it is everything before the pipe, not
1740   * including the pipe character. If there is no pipe in the translated text then
1741   * everything is returned.
1742   *
1743   * @since 2.2.0
1744   * @deprecated 2.9.0 Use _x()
1745   * @see _x()
1746   *
1747   * @param string $text Text to translate
1748   * @param string $domain Optional. Domain to retrieve the translated text
1749   * @return string Translated context string without pipe
1750   */
1751  function _c( $text, $domain = 'default' ) {
1752      _deprecated_function( __FUNCTION__, '2.9.0', '_x()' );
1753      return before_last_bar( translate( $text, $domain ) );
1754  }
1755  
1756  /**
1757   * Translates $text like translate(), but assumes that the text
1758   * contains a context after its last vertical bar.
1759   *
1760   * @since 2.5.0
1761   * @deprecated 3.0.0 Use _x()
1762   * @see _x()
1763   *
1764   * @param string $text Text to translate
1765   * @param string $domain Domain to retrieve the translated text
1766   * @return string Translated text
1767   */
1768  function translate_with_context( $text, $domain = 'default' ) {
1769      _deprecated_function( __FUNCTION__, '2.9.0', '_x()' );
1770      return before_last_bar( translate( $text, $domain ) );
1771  }
1772  
1773  /**
1774   * Legacy version of _n(), which supports contexts.
1775   *
1776   * Strips everything from the translation after the last bar.
1777   *
1778   * @since 2.7.0
1779   * @deprecated 3.0.0 Use _nx()
1780   * @see _nx()
1781   *
1782   * @param string $single The text to be used if the number is singular.
1783   * @param string $plural The text to be used if the number is plural.
1784   * @param int    $number The number to compare against to use either the singular or plural form.
1785   * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
1786   *                       Default 'default'.
1787   * @return string The translated singular or plural form.
1788   */
1789  function _nc( $single, $plural, $number, $domain = 'default' ) {
1790      _deprecated_function( __FUNCTION__, '2.9.0', '_nx()' );
1791      return before_last_bar( _n( $single, $plural, $number, $domain ) );
1792  }
1793  
1794  /**
1795   * Retrieve the plural or single form based on the amount.
1796   *
1797   * @since 1.2.0
1798   * @deprecated 2.8.0 Use _n()
1799   * @see _n()
1800   */
1801  function __ngettext( ...$args ) { // phpcs:ignore PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore
1802      _deprecated_function( __FUNCTION__, '2.8.0', '_n()' );
1803      return _n( ...$args );
1804  }
1805  
1806  /**
1807   * Register plural strings in POT file, but don't translate them.
1808   *
1809   * @since 2.5.0
1810   * @deprecated 2.8.0 Use _n_noop()
1811   * @see _n_noop()
1812   */
1813  function __ngettext_noop( ...$args ) { // phpcs:ignore PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore
1814      _deprecated_function( __FUNCTION__, '2.8.0', '_n_noop()' );
1815      return _n_noop( ...$args );
1816  
1817  }
1818  
1819  /**
1820   * Retrieve all autoload options, or all options if no autoloaded ones exist.
1821   *
1822   * @since 1.0.0
1823   * @deprecated 3.0.0 Use wp_load_alloptions())
1824   * @see wp_load_alloptions()
1825   *
1826   * @return array List of all options.
1827   */
1828  function get_alloptions() {
1829      _deprecated_function( __FUNCTION__, '3.0.0', 'wp_load_alloptions()' );
1830      return wp_load_alloptions();
1831  }
1832  
1833  /**
1834   * Retrieve HTML content of attachment image with link.
1835   *
1836   * @since 2.0.0
1837   * @deprecated 2.5.0 Use wp_get_attachment_link()
1838   * @see wp_get_attachment_link()
1839   *
1840   * @param int $id Optional. Post ID.
1841   * @param bool $fullsize Optional, default is false. Whether to use full size image.
1842   * @param array $max_dims Optional. Max image dimensions.
1843   * @param bool $permalink Optional, default is false. Whether to include permalink to image.
1844   * @return string
1845   */
1846  function get_the_attachment_link($id = 0, $fullsize = false, $max_dims = false, $permalink = false) {
1847      _deprecated_function( __FUNCTION__, '2.5.0', 'wp_get_attachment_link()' );
1848      $id = (int) $id;
1849      $_post = get_post($id);
1850  
1851      if ( ('attachment' != $_post->post_type) || !$url = wp_get_attachment_url($_post->ID) )
1852          return __('Missing Attachment');
1853  
1854      if ( $permalink )
1855          $url = get_attachment_link($_post->ID);
1856  
1857      $post_title = esc_attr($_post->post_title);
1858  
1859      $innerHTML = get_attachment_innerHTML($_post->ID, $fullsize, $max_dims);
1860      return "<a href='$url' title='$post_title'>$innerHTML</a>";
1861  }
1862  
1863  /**
1864   * Retrieve icon URL and Path.
1865   *
1866   * @since 2.1.0
1867   * @deprecated 2.5.0 Use wp_get_attachment_image_src()
1868   * @see wp_get_attachment_image_src()
1869   *
1870   * @param int $id Optional. Post ID.
1871   * @param bool $fullsize Optional, default to false. Whether to have full image.
1872   * @return array Icon URL and full path to file, respectively.
1873   */
1874  function get_attachment_icon_src( $id = 0, $fullsize = false ) {
1875      _deprecated_function( __FUNCTION__, '2.5.0', 'wp_get_attachment_image_src()' );
1876      $id = (int) $id;
1877      if ( !$post = get_post($id) )
1878          return false;
1879  
1880      $file = get_attached_file( $post->ID );
1881  
1882      if ( !$fullsize && $src = wp_get_attachment_thumb_url( $post->ID ) ) {
1883          // We have a thumbnail desired, specified and existing
1884  
1885          $src_file = wp_basename($src);
1886      } elseif ( wp_attachment_is_image( $post->ID ) ) {
1887          // We have an image without a thumbnail
1888  
1889          $src = wp_get_attachment_url( $post->ID );
1890          $src_file = & $file;
1891      } elseif ( $src = wp_mime_type_icon( $post->ID ) ) {
1892          // No thumb, no image. We'll look for a mime-related icon instead.
1893  
1894          $icon_dir = apply_filters( 'icon_dir', get_template_directory() . '/images' );
1895          $src_file = $icon_dir . '/' . wp_basename($src);
1896      }
1897  
1898      if ( !isset($src) || !$src )
1899          return false;
1900  
1901      return array($src, $src_file);
1902  }
1903  
1904  /**
1905   * Retrieve HTML content of icon attachment image element.
1906   *
1907   * @since 2.0.0
1908   * @deprecated 2.5.0 Use wp_get_attachment_image()
1909   * @see wp_get_attachment_image()
1910   *
1911   * @param int $id Optional. Post ID.
1912   * @param bool $fullsize Optional, default to false. Whether to have full size image.
1913   * @param array $max_dims Optional. Dimensions of image.
1914   * @return false|string HTML content.
1915   */
1916  function get_attachment_icon( $id = 0, $fullsize = false, $max_dims = false ) {
1917      _deprecated_function( __FUNCTION__, '2.5.0', 'wp_get_attachment_image()' );
1918      $id = (int) $id;
1919      if ( !$post = get_post($id) )
1920          return false;
1921  
1922      if ( !$src = get_attachment_icon_src( $post->ID, $fullsize ) )
1923          return false;
1924  
1925      list($src, $src_file) = $src;
1926  
1927      // Do we need to constrain the image?
1928      if ( ($max_dims = apply_filters('attachment_max_dims', $max_dims)) && file_exists($src_file) ) {
1929  
1930          $imagesize = @getimagesize($src_file);
1931  
1932          if (($imagesize[0] > $max_dims[0]) || $imagesize[1] > $max_dims[1] ) {
1933              $actual_aspect = $imagesize[0] / $imagesize[1];
1934              $desired_aspect = $max_dims[0] / $max_dims[1];
1935  
1936              if ( $actual_aspect >= $desired_aspect ) {
1937                  $height = $actual_aspect * $max_dims[0];
1938                  $constraint = "width='{$max_dims[0]}' ";
1939                  $post->iconsize = array($max_dims[0], $height);
1940              } else {
1941                  $width = $max_dims[1] / $actual_aspect;
1942                  $constraint = "height='{$max_dims[1]}' ";
1943                  $post->iconsize = array($width, $max_dims[1]);
1944              }
1945          } else {
1946              $post->iconsize = array($imagesize[0], $imagesize[1]);
1947              $constraint = '';
1948          }
1949      } else {
1950          $constraint = '';
1951      }
1952  
1953      $post_title = esc_attr($post->post_title);
1954  
1955      $icon = "<img src='$src' title='$post_title' alt='$post_title' $constraint/>";
1956  
1957      return apply_filters( 'attachment_icon', $icon, $post->ID );
1958  }
1959  
1960  /**
1961   * Retrieve HTML content of image element.
1962   *
1963   * @since 2.0.0
1964   * @deprecated 2.5.0 Use wp_get_attachment_image()
1965   * @see wp_get_attachment_image()
1966   *
1967   * @param int $id Optional. Post ID.
1968   * @param bool $fullsize Optional, default to false. Whether to have full size image.
1969   * @param array $max_dims Optional. Dimensions of image.
1970   * @return false|string
1971   */
1972  function get_attachment_innerHTML($id = 0, $fullsize = false, $max_dims = false) {
1973      _deprecated_function( __FUNCTION__, '2.5.0', 'wp_get_attachment_image()' );
1974      $id = (int) $id;
1975      if ( !$post = get_post($id) )
1976          return false;
1977  
1978      if ( $innerHTML = get_attachment_icon($post->ID, $fullsize, $max_dims))
1979          return $innerHTML;
1980  
1981      $innerHTML = esc_attr($post->post_title);
1982  
1983      return apply_filters('attachment_innerHTML', $innerHTML, $post->ID);
1984  }
1985  
1986  /**
1987   * Retrieves bookmark data based on ID.
1988   *
1989   * @since 2.0.0
1990   * @deprecated 2.1.0 Use get_bookmark()
1991   * @see get_bookmark()
1992   *
1993   * @param int    $bookmark_id ID of link
1994   * @param string $output      Optional. Type of output. Accepts OBJECT, ARRAY_N, or ARRAY_A.
1995   *                            Default OBJECT.
1996   * @param string $filter      Optional. How to filter the link for output. Accepts 'raw', 'edit',
1997   *                            'attribute', 'js', 'db', or 'display'. Default 'raw'.
1998   * @return object|array Bookmark object or array, depending on the type specified by `$output`.
1999   */
2000  function get_link( $bookmark_id, $output = OBJECT, $filter = 'raw' ) {
2001      _deprecated_function( __FUNCTION__, '2.1.0', 'get_bookmark()' );
2002      return get_bookmark($bookmark_id, $output, $filter);
2003  }
2004  
2005  /**
2006   * Performs esc_url() for database or redirect usage.
2007   *
2008   * @since 2.3.1
2009   * @deprecated 2.8.0 Use esc_url_raw()
2010   * @see esc_url_raw()
2011   *
2012   * @param string $url The URL to be cleaned.
2013   * @param array $protocols An array of acceptable protocols.
2014   * @return string The cleaned URL.
2015   */
2016  function sanitize_url( $url, $protocols = null ) {
2017      _deprecated_function( __FUNCTION__, '2.8.0', 'esc_url_raw()' );
2018      return esc_url_raw( $url, $protocols );
2019  }
2020  
2021  /**
2022   * Checks and cleans a URL.
2023   *
2024   * A number of characters are removed from the URL. If the URL is for displaying
2025   * (the default behaviour) ampersands are also replaced. The 'clean_url' filter
2026   * is applied to the returned cleaned URL.
2027   *
2028   * @since 1.2.0
2029   * @deprecated 3.0.0 Use esc_url()
2030   * @see esc_url()
2031   *
2032   * @param string $url The URL to be cleaned.
2033   * @param array $protocols Optional. An array of acceptable protocols.
2034   * @param string $context Optional. How the URL will be used. Default is 'display'.
2035   * @return string The cleaned $url after the {@see 'clean_url'} filter is applied.
2036   */
2037  function clean_url( $url, $protocols = null, $context = 'display' ) {
2038      if ( $context == 'db' )
2039          _deprecated_function( 'clean_url( $context = \'db\' )', '3.0.0', 'esc_url_raw()' );
2040      else
2041          _deprecated_function( __FUNCTION__, '3.0.0', 'esc_url()' );
2042      return esc_url( $url, $protocols, $context );
2043  }
2044  
2045  /**
2046   * Escape single quotes, specialchar double quotes, and fix line endings.
2047   *
2048   * The filter {@see 'js_escape'} is also applied by esc_js().
2049   *
2050   * @since 2.0.4
2051   * @deprecated 2.8.0 Use esc_js()
2052   * @see esc_js()
2053   *
2054   * @param string $text The text to be escaped.
2055   * @return string Escaped text.
2056   */
2057  function js_escape( $text ) {
2058      _deprecated_function( __FUNCTION__, '2.8.0', 'esc_js()' );
2059      return esc_js( $text );
2060  }
2061  
2062  /**
2063   * Legacy escaping for HTML blocks.
2064   *
2065   * @deprecated 2.8.0 Use esc_html()
2066   * @see esc_html()
2067   *
2068   * @param string       $string        String to escape.
2069   * @param string       $quote_style   Unused.
2070   * @param false|string $charset       Unused.
2071   * @param false        $double_encode Whether to double encode. Unused.
2072   * @return string Escaped `$string`.
2073   */
2074  function wp_specialchars( $string, $quote_style = ENT_NOQUOTES, $charset = false, $double_encode = false ) {
2075      _deprecated_function( __FUNCTION__, '2.8.0', 'esc_html()' );
2076      if ( func_num_args() > 1 ) { // Maintain back-compat for people passing additional arguments.
2077          return _wp_specialchars( $string, $quote_style, $charset, $double_encode );
2078      } else {
2079          return esc_html( $string );
2080      }
2081  }
2082  
2083  /**
2084   * Escaping for HTML attributes.
2085   *
2086   * @since 2.0.6
2087   * @deprecated 2.8.0 Use esc_attr()
2088   * @see esc_attr()
2089   *
2090   * @param string $text
2091   * @return string
2092   */
2093  function attribute_escape( $text ) {
2094      _deprecated_function( __FUNCTION__, '2.8.0', 'esc_attr()' );
2095      return esc_attr( $text );
2096  }
2097  
2098  /**
2099   * Register widget for sidebar with backward compatibility.
2100   *
2101   * Allows $name to be an array that accepts either three elements to grab the
2102   * first element and the third for the name or just uses the first element of
2103   * the array for the name.
2104   *
2105   * Passes to wp_register_sidebar_widget() after argument list and backward
2106   * compatibility is complete.
2107   *
2108   * @since 2.2.0
2109   * @deprecated 2.8.0 Use wp_register_sidebar_widget()
2110   * @see wp_register_sidebar_widget()
2111   *
2112   * @param string|int $name            Widget ID.
2113   * @param callable   $output_callback Run when widget is called.
2114   * @param string     $classname       Optional. Classname widget option. Default empty.
2115   * @param mixed      ...$params       Widget parameters.
2116   */
2117  function register_sidebar_widget($name, $output_callback, $classname = '', ...$params) {
2118      _deprecated_function( __FUNCTION__, '2.8.0', 'wp_register_sidebar_widget()' );
2119      // Compat
2120      if ( is_array( $name ) ) {
2121          if ( count( $name ) === 3 ) {
2122              $name = sprintf( $name[0], $name[2] );
2123          } else {
2124              $name = $name[0];
2125          }
2126      }
2127  
2128      $id      = sanitize_title( $name );
2129      $options = array();
2130      if ( ! empty( $classname ) && is_string( $classname ) ) {
2131          $options['classname'] = $classname;
2132      }
2133  
2134      wp_register_sidebar_widget( $id, $name, $output_callback, $options, ...$params );
2135  }
2136  
2137  /**
2138   * Serves as an alias of wp_unregister_sidebar_widget().
2139   *
2140   * @since 2.2.0
2141   * @deprecated 2.8.0 Use wp_unregister_sidebar_widget()
2142   * @see wp_unregister_sidebar_widget()
2143   *
2144   * @param int|string $id Widget ID.
2145   */
2146  function unregister_sidebar_widget($id) {
2147      _deprecated_function( __FUNCTION__, '2.8.0', 'wp_unregister_sidebar_widget()' );
2148      return wp_unregister_sidebar_widget($id);
2149  }
2150  
2151  /**
2152   * Registers widget control callback for customizing options.
2153   *
2154   * Allows $name to be an array that accepts either three elements to grab the
2155   * first element and the third for the name or just uses the first element of
2156   * the array for the name.
2157   *
2158   * Passes to wp_register_widget_control() after the argument list has
2159   * been compiled.
2160   *
2161   * @since 2.2.0
2162   * @deprecated 2.8.0 Use wp_register_widget_control()
2163   * @see wp_register_widget_control()
2164   *
2165   * @param int|string $name             Sidebar ID.
2166   * @param callable   $control_callback Widget control callback to display and process form.
2167   * @param int        $width            Widget width.
2168   * @param int        $height           Widget height.
2169   * @param mixed      ...$params        Widget parameters.
2170   */
2171  function register_widget_control($name, $control_callback, $width = '', $height = '', ...$params) {
2172      _deprecated_function( __FUNCTION__, '2.8.0', 'wp_register_widget_control()' );
2173      // Compat
2174      if ( is_array( $name ) ) {
2175          if ( count( $name ) === 3 ) {
2176              $name = sprintf( $name[0], $name[2] );
2177          } else {
2178              $name = $name[0];
2179          }
2180      }
2181  
2182      $id      = sanitize_title( $name );
2183      $options = array();
2184      if ( ! empty( $width ) ) {
2185          $options['width'] = $width;
2186      }
2187      if ( ! empty( $height ) ) {
2188          $options['height'] = $height;
2189      }
2190  
2191      wp_register_widget_control( $id, $name, $control_callback, $options, ...$params );
2192  }
2193  
2194  /**
2195   * Alias of wp_unregister_widget_control().
2196   *
2197   * @since 2.2.0
2198   * @deprecated 2.8.0 Use wp_unregister_widget_control()
2199   * @see wp_unregister_widget_control()
2200   *
2201   * @param int|string $id Widget ID.
2202   */
2203  function unregister_widget_control($id) {
2204      _deprecated_function( __FUNCTION__, '2.8.0', 'wp_unregister_widget_control()' );
2205      return wp_unregister_widget_control($id);
2206  }
2207  
2208  /**
2209   * Remove user meta data.
2210   *
2211   * @since 2.0.0
2212   * @deprecated 3.0.0 Use delete_user_meta()
2213   * @see delete_user_meta()
2214   *
2215   * @param int $user_id User ID.
2216   * @param string $meta_key Metadata key.
2217   * @param mixed $meta_value Metadata value.
2218   * @return bool True deletion completed and false if user_id is not a number.
2219   */
2220  function delete_usermeta( $user_id, $meta_key, $meta_value = '' ) {
2221      _deprecated_function( __FUNCTION__, '3.0.0', 'delete_user_meta()' );
2222      global $wpdb;
2223      if ( !is_numeric( $user_id ) )
2224          return false;
2225      $meta_key = preg_replace('|[^a-z0-9_]|i', '', $meta_key);
2226  
2227      if ( is_array($meta_value) || is_object($meta_value) )
2228          $meta_value = serialize($meta_value);
2229      $meta_value = trim( $meta_value );
2230  
2231      $cur = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->usermeta WHERE user_id = %d AND meta_key = %s", $user_id, $meta_key) );
2232  
2233      if ( $cur && $cur->umeta_id )
2234          do_action( 'delete_usermeta', $cur->umeta_id, $user_id, $meta_key, $meta_value );
2235  
2236      if ( ! empty($meta_value) )
2237          $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->usermeta WHERE user_id = %d AND meta_key = %s AND meta_value = %s", $user_id, $meta_key, $meta_value) );
2238      else
2239          $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->usermeta WHERE user_id = %d AND meta_key = %s", $user_id, $meta_key) );
2240  
2241      clean_user_cache( $user_id );
2242      wp_cache_delete( $user_id, 'user_meta' );
2243  
2244      if ( $cur && $cur->umeta_id )
2245          do_action( 'deleted_usermeta', $cur->umeta_id, $user_id, $meta_key, $meta_value );
2246  
2247      return true;
2248  }
2249  
2250  /**
2251   * Retrieve user metadata.
2252   *
2253   * If $user_id is not a number, then the function will fail over with a 'false'
2254   * boolean return value. Other returned values depend on whether there is only
2255   * one item to be returned, which be that single item type. If there is more
2256   * than one metadata value, then it will be list of metadata values.
2257   *
2258   * @since 2.0.0
2259   * @deprecated 3.0.0 Use get_user_meta()
2260   * @see get_user_meta()
2261   *
2262   * @param int $user_id User ID
2263   * @param string $meta_key Optional. Metadata key.
2264   * @return mixed
2265   */
2266  function get_usermeta( $user_id, $meta_key = '' ) {
2267      _deprecated_function( __FUNCTION__, '3.0.0', 'get_user_meta()' );
2268      global $wpdb;
2269      $user_id = (int) $user_id;
2270  
2271      if ( !$user_id )
2272          return false;
2273  
2274      if ( !empty($meta_key) ) {
2275          $meta_key = preg_replace('|[^a-z0-9_]|i', '', $meta_key);
2276          $user = wp_cache_get($user_id, 'users');
2277          // Check the cached user object
2278          if ( false !== $user && isset($user->$meta_key) )
2279              $metas = array($user->$meta_key);
2280          else
2281              $metas = $wpdb->get_col( $wpdb->prepare("SELECT meta_value FROM $wpdb->usermeta WHERE user_id = %d AND meta_key = %s", $user_id, $meta_key) );
2282      } else {
2283          $metas = $wpdb->get_col( $wpdb->prepare("SELECT meta_value FROM $wpdb->usermeta WHERE user_id = %d", $user_id) );
2284      }
2285  
2286      if ( empty($metas) ) {
2287          if ( empty($meta_key) )
2288              return array();
2289          else
2290              return '';
2291      }
2292  
2293      $metas = array_map('maybe_unserialize', $metas);
2294  
2295      if ( count($metas) == 1 )
2296          return $metas[0];
2297      else
2298          return $metas;
2299  }
2300  
2301  /**
2302   * Update metadata of user.
2303   *
2304   * There is no need to serialize values, they will be serialized if it is
2305   * needed. The metadata key can only be a string with underscores. All else will
2306   * be removed.
2307   *
2308   * Will remove the metadata, if the meta value is empty.
2309   *
2310   * @since 2.0.0
2311   * @deprecated 3.0.0 Use update_user_meta()
2312   * @see update_user_meta()
2313   *
2314   * @param int $user_id User ID
2315   * @param string $meta_key Metadata key.
2316   * @param mixed $meta_value Metadata value.
2317   * @return bool True on successful update, false on failure.
2318   */
2319  function update_usermeta( $user_id, $meta_key, $meta_value ) {
2320      _deprecated_function( __FUNCTION__, '3.0.0', 'update_user_meta()' );
2321      global $wpdb;
2322      if ( !is_numeric( $user_id ) )
2323          return false;
2324      $meta_key = preg_replace('|[^a-z0-9_]|i', '', $meta_key);
2325  
2326      /** @todo Might need fix because usermeta data is assumed to be already escaped */
2327      if ( is_string($meta_value) )
2328          $meta_value = stripslashes($meta_value);
2329      $meta_value = maybe_serialize($meta_value);
2330  
2331      if (empty($meta_value)) {
2332          return delete_usermeta($user_id, $meta_key);
2333      }
2334  
2335      $cur = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->usermeta WHERE user_id = %d AND meta_key = %s", $user_id, $meta_key) );
2336  
2337      if ( $cur )
2338          do_action( 'update_usermeta', $cur->umeta_id, $user_id, $meta_key, $meta_value );
2339  
2340      if ( !$cur )
2341          $wpdb->insert($wpdb->usermeta, compact('user_id', 'meta_key', 'meta_value') );
2342      elseif ( $cur->meta_value != $meta_value )
2343          $wpdb->update($wpdb->usermeta, compact('meta_value'), compact('user_id', 'meta_key') );
2344      else
2345          return false;
2346  
2347      clean_user_cache( $user_id );
2348      wp_cache_delete( $user_id, 'user_meta' );
2349  
2350      if ( !$cur )
2351          do_action( 'added_usermeta', $wpdb->insert_id, $user_id, $meta_key, $meta_value );
2352      else
2353          do_action( 'updated_usermeta', $cur->umeta_id, $user_id, $meta_key, $meta_value );
2354  
2355      return true;
2356  }
2357  
2358  /**
2359   * Get users for the site.
2360   *
2361   * For setups that use the multisite feature. Can be used outside of the
2362   * multisite feature.
2363   *
2364   * @since 2.2.0
2365   * @deprecated 3.1.0 Use get_users()
2366   * @see get_users()
2367   *
2368   * @global wpdb $wpdb WordPress database abstraction object.
2369   *
2370   * @param int $id Site ID.
2371   * @return array List of users that are part of that site ID
2372   */
2373  function get_users_of_blog( $id = '' ) {
2374      _deprecated_function( __FUNCTION__, '3.1.0', 'get_users()' );
2375  
2376      global $wpdb;
2377      if ( empty( $id ) ) {
2378          $id = get_current_blog_id();
2379      }
2380      $blog_prefix = $wpdb->get_blog_prefix($id);
2381      $users = $wpdb->get_results( "SELECT user_id, user_id AS ID, user_login, display_name, user_email, meta_value FROM $wpdb->users, $wpdb->usermeta WHERE {$wpdb->users}.ID = {$wpdb->usermeta}.user_id AND meta_key = '{$blog_prefix}capabilities' ORDER BY {$wpdb->usermeta}.user_id" );
2382      return $users;
2383  }
2384  
2385  /**
2386   * Enable/disable automatic general feed link outputting.
2387   *
2388   * @since 2.8.0
2389   * @deprecated 3.0.0 Use add_theme_support()
2390   * @see add_theme_support()
2391   *
2392   * @param bool $add Optional, default is true. Add or remove links. Defaults to true.
2393   */
2394  function automatic_feed_links( $add = true ) {
2395      _deprecated_function( __FUNCTION__, '3.0.0', "add_theme_support( 'automatic-feed-links' )" );
2396  
2397      if ( $add )
2398          add_theme_support( 'automatic-feed-links' );
2399      else
2400          remove_action( 'wp_head', 'feed_links_extra', 3 ); // Just do this yourself in 3.0+
2401  }
2402  
2403  /**
2404   * Retrieve user data based on field.
2405   *
2406   * @since 1.5.0
2407   * @deprecated 3.0.0 Use get_the_author_meta()
2408   * @see get_the_author_meta()
2409   *
2410   * @param string    $field User meta field.
2411   * @param false|int $user Optional. User ID to retrieve the field for. Default false (current user).
2412   * @return string The author's field from the current author's DB object.
2413   */
2414  function get_profile( $field, $user = false ) {
2415      _deprecated_function( __FUNCTION__, '3.0.0', 'get_the_author_meta()' );
2416      if ( $user ) {
2417          $user = get_user_by( 'login', $user );
2418          $user = $user->ID;
2419      }
2420      return get_the_author_meta( $field, $user );
2421  }
2422  
2423  /**
2424   * Retrieves the number of posts a user has written.
2425   *
2426   * @since 0.71
2427   * @deprecated 3.0.0 Use count_user_posts()
2428   * @see count_user_posts()
2429   *
2430   * @param int $userid User to count posts for.
2431   * @return int Number of posts the given user has written.
2432   */
2433  function get_usernumposts( $userid ) {
2434      _deprecated_function( __FUNCTION__, '3.0.0', 'count_user_posts()' );
2435      return count_user_posts( $userid );
2436  }
2437  
2438  /**
2439   * Callback used to change %uXXXX to &#YYY; syntax
2440   *
2441   * @since 2.8.0
2442   * @access private
2443   * @deprecated 3.0.0
2444   *
2445   * @param array $matches Single Match
2446   * @return string An HTML entity
2447   */
2448  function funky_javascript_callback($matches) {
2449      return "&#".base_convert($matches[1],16,10).";";
2450  }
2451  
2452  /**
2453   * Fixes JavaScript bugs in browsers.
2454   *
2455   * Converts unicode characters to HTML numbered entities.
2456   *
2457   * @since 1.5.0
2458   * @deprecated 3.0.0
2459   *
2460   * @global $is_macIE
2461   * @global $is_winIE
2462   *
2463   * @param string $text Text to be made safe.
2464   * @return string Fixed text.
2465   */
2466  function funky_javascript_fix($text) {
2467      _deprecated_function( __FUNCTION__, '3.0.0' );
2468      // Fixes for browsers' JavaScript bugs.
2469      global $is_macIE, $is_winIE;
2470  
2471      if ( $is_winIE || $is_macIE )
2472          $text =  preg_replace_callback("/\%u([0-9A-F]{4,4})/",
2473                      "funky_javascript_callback",
2474                      $text);
2475  
2476      return $text;
2477  }
2478  
2479  /**
2480   * Checks that the taxonomy name exists.
2481   *
2482   * @since 2.3.0
2483   * @deprecated 3.0.0 Use taxonomy_exists()
2484   * @see taxonomy_exists()
2485   *
2486   * @param string $taxonomy Name of taxonomy object
2487   * @return bool Whether the taxonomy exists.
2488   */
2489  function is_taxonomy( $taxonomy ) {
2490      _deprecated_function( __FUNCTION__, '3.0.0', 'taxonomy_exists()' );
2491      return taxonomy_exists( $taxonomy );
2492  }
2493  
2494  /**
2495   * Check if Term exists.
2496   *
2497   * @since 2.3.0
2498   * @deprecated 3.0.0 Use term_exists()
2499   * @see term_exists()
2500   *
2501   * @param int|string $term The term to check
2502   * @param string $taxonomy The taxonomy name to use
2503   * @param int $parent ID of parent term under which to confine the exists search.
2504   * @return mixed Get the term id or Term Object, if exists.
2505   */
2506  function is_term( $term, $taxonomy = '', $parent = 0 ) {
2507      _deprecated_function( __FUNCTION__, '3.0.0', 'term_exists()' );
2508      return term_exists( $term, $taxonomy, $parent );
2509  }
2510  
2511  /**
2512   * Determines whether the current admin page is generated by a plugin.
2513   *
2514   * Use global $plugin_page and/or get_plugin_page_hookname() hooks.
2515   * 
2516   * For more information on this and similar theme functions, check out
2517   * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ 
2518   * Conditional Tags} article in the Theme Developer Handbook.
2519   * 
2520   * @since 1.5.0
2521   * @deprecated 3.1.0
2522   *
2523   * @global $plugin_page
2524   *
2525   * @return bool
2526   */
2527  function is_plugin_page() {
2528      _deprecated_function( __FUNCTION__, '3.1.0'  );
2529  
2530      global $plugin_page;
2531  
2532      if ( isset($plugin_page) )
2533          return true;
2534  
2535      return false;
2536  }
2537  
2538  /**
2539   * Update the categories cache.
2540   *
2541   * This function does not appear to be used anymore or does not appear to be
2542   * needed. It might be a legacy function left over from when there was a need
2543   * for updating the category cache.
2544   *
2545   * @since 1.5.0
2546   * @deprecated 3.1.0
2547   *
2548   * @return bool Always return True
2549   */
2550  function update_category_cache() {
2551      _deprecated_function( __FUNCTION__, '3.1.0'  );
2552  
2553      return true;
2554  }
2555  
2556  /**
2557   * Check for PHP timezone support
2558   *
2559   * @since 2.9.0
2560   * @deprecated 3.2.0
2561   *
2562   * @return bool
2563   */
2564  function wp_timezone_supported() {
2565      _deprecated_function( __FUNCTION__, '3.2.0' );
2566  
2567      return true;
2568  }
2569  
2570  /**
2571   * Displays an editor: TinyMCE, HTML, or both.
2572   *
2573   * @since 2.1.0
2574   * @deprecated 3.3.0 Use wp_editor()
2575   * @see wp_editor()
2576   *
2577   * @param string $content       Textarea content.
2578   * @param string $id            Optional. HTML ID attribute value. Default 'content'.
2579   * @param string $prev_id       Optional. Unused.
2580   * @param bool   $media_buttons Optional. Whether to display media buttons. Default true.
2581   * @param int    $tab_index     Optional. Unused.
2582   * @param bool   $extended      Optional. Unused.
2583   */
2584  function the_editor($content, $id = 'content', $prev_id = 'title', $media_buttons = true, $tab_index = 2, $extended = true) {
2585      _deprecated_function( __FUNCTION__, '3.3.0', 'wp_editor()' );
2586  
2587      wp_editor( $content, $id, array( 'media_buttons' => $media_buttons ) );
2588  }
2589  
2590  /**
2591   * Perform the query to get the $metavalues array(s) needed by _fill_user and _fill_many_users
2592   *
2593   * @since 3.0.0
2594   * @deprecated 3.3.0
2595   *
2596   * @param array $ids User ID numbers list.
2597   * @return array of arrays. The array is indexed by user_id, containing $metavalues object arrays.
2598   */
2599  function get_user_metavalues($ids) {
2600      _deprecated_function( __FUNCTION__, '3.3.0' );
2601  
2602      $objects = array();
2603  
2604      $ids = array_map('intval', $ids);
2605      foreach ( $ids as $id )
2606          $objects[$id] = array();
2607  
2608      $metas = update_meta_cache('user', $ids);
2609  
2610      foreach ( $metas as $id => $meta ) {
2611          foreach ( $meta as $key => $metavalues ) {
2612              foreach ( $metavalues as $value ) {
2613                  $objects[$id][] = (object)array( 'user_id' => $id, 'meta_key' => $key, 'meta_value' => $value);
2614              }
2615          }
2616      }
2617  
2618      return $objects;
2619  }
2620  
2621  /**
2622   * Sanitize every user field.
2623   *
2624   * If the context is 'raw', then the user object or array will get minimal santization of the int fields.
2625   *
2626   * @since 2.3.0
2627   * @deprecated 3.3.0
2628   *
2629   * @param object|array $user The User Object or Array
2630   * @param string $context Optional, default is 'display'. How to sanitize user fields.
2631   * @return object|array The now sanitized User Object or Array (will be the same type as $user)
2632   */
2633  function sanitize_user_object($user, $context = 'display') {
2634      _deprecated_function( __FUNCTION__, '3.3.0' );
2635  
2636      if ( is_object($user) ) {
2637          if ( !isset($user->ID) )
2638              $user->ID = 0;
2639          if ( ! ( $user instanceof WP_User ) ) {
2640              $vars = get_object_vars($user);
2641              foreach ( array_keys($vars) as $field ) {
2642                  if ( is_string($user->$field) || is_numeric($user->$field) )
2643                      $user->$field = sanitize_user_field($field, $user->$field, $user->ID, $context);
2644              }
2645          }
2646          $user->filter = $context;
2647      } else {
2648          if ( !isset($user['ID']) )
2649              $user['ID'] = 0;
2650          foreach ( array_keys($user) as $field )
2651              $user[$field] = sanitize_user_field($field, $user[$field], $user['ID'], $context);
2652          $user['filter'] = $context;
2653      }
2654  
2655      return $user;
2656  }
2657  
2658  /**
2659   * Get boundary post relational link.
2660   *
2661   * Can either be start or end post relational link.
2662   *
2663   * @since 2.8.0
2664   * @deprecated 3.3.0
2665   *
2666   * @param string $title Optional. Link title format.
2667   * @param bool $in_same_cat Optional. Whether link should be in a same category.
2668   * @param string $excluded_categories Optional. Excluded categories IDs.
2669   * @param bool $start Optional, default is true. Whether to display link to first or last post.
2670   * @return string
2671   */
2672  function get_boundary_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '', $start = true) {
2673      _deprecated_function( __FUNCTION__, '3.3.0' );
2674  
2675      $posts = get_boundary_post($in_same_cat, $excluded_categories, $start);
2676      // If there is no post stop.
2677      if ( empty($posts) )
2678          return;
2679  
2680      // Even though we limited get_posts to return only 1 item it still returns an array of objects.
2681      $post = $posts[0];
2682  
2683      if ( empty($post->post_title) )
2684          $post->post_title = $start ? __('First Post') : __('Last Post');
2685  
2686      $date = mysql2date(get_option('date_format'), $post->post_date);
2687  
2688      $title = str_replace('%title', $post->post_title, $title);
2689      $title = str_replace('%date', $date, $title);
2690      $title = apply_filters('the_title', $title, $post->ID);
2691  
2692      $link = $start ? "<link rel='start' title='" : "<link rel='end' title='";
2693      $link .= esc_attr($title);
2694      $link .= "' href='" . get_permalink($post) . "' />\n";
2695  
2696      $boundary = $start ? 'start' : 'end';
2697      return apply_filters( "{$boundary}_post_rel_link", $link );
2698  }
2699  
2700  /**
2701   * Display relational link for the first post.
2702   *
2703   * @since 2.8.0
2704   * @deprecated 3.3.0
2705   *
2706   * @param string $title Optional. Link title format.
2707   * @param bool $in_same_cat Optional. Whether link should be in a same category.
2708   * @param string $excluded_categories Optional. Excluded categories IDs.
2709   */
2710  function start_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') {
2711      _deprecated_function( __FUNCTION__, '3.3.0' );
2712  
2713      echo get_boundary_post_rel_link($title, $in_same_cat, $excluded_categories, true);
2714  }
2715  
2716  /**
2717   * Get site index relational link.
2718   *
2719   * @since 2.8.0
2720   * @deprecated 3.3.0
2721   *
2722   * @return string
2723   */
2724  function get_index_rel_link() {
2725      _deprecated_function( __FUNCTION__, '3.3.0' );
2726  
2727      $link = "<link rel='index' title='" . esc_attr( get_bloginfo( 'name', 'display' ) ) . "' href='" . esc_url( user_trailingslashit( get_bloginfo( 'url', 'display' ) ) ) . "' />\n";
2728      return apply_filters( "index_rel_link", $link );
2729  }
2730  
2731  /**
2732   * Display relational link for the site index.
2733   *
2734   * @since 2.8.0
2735   * @deprecated 3.3.0
2736   */
2737  function index_rel_link() {
2738      _deprecated_function( __FUNCTION__, '3.3.0' );
2739  
2740      echo get_index_rel_link();
2741  }
2742  
2743  /**
2744   * Get parent post relational link.
2745   *
2746   * @since 2.8.0
2747   * @deprecated 3.3.0
2748   *
2749   * @param string $title Optional. Link title format. Default '%title'.
2750   * @return string
2751   */
2752  function get_parent_post_rel_link( $title = '%title' ) {
2753      _deprecated_function( __FUNCTION__, '3.3.0' );
2754  
2755      if ( ! empty( $GLOBALS['post'] ) && ! empty( $GLOBALS['post']->post_parent ) )
2756          $post = get_post($GLOBALS['post']->post_parent);
2757  
2758      if ( empty($post) )
2759          return;
2760  
2761      $date = mysql2date(get_option('date_format'), $post->post_date);
2762  
2763      $title = str_replace('%title', $post->post_title, $title);
2764      $title = str_replace('%date', $date, $title);
2765      $title = apply_filters('the_title', $title, $post->ID);
2766  
2767      $link = "<link rel='up' title='";
2768      $link .= esc_attr( $title );
2769      $link .= "' href='" . get_permalink($post) . "' />\n";
2770  
2771      return apply_filters( "parent_post_rel_link", $link );
2772  }
2773  
2774  /**
2775   * Display relational link for parent item
2776   *
2777   * @since 2.8.0
2778   * @deprecated 3.3.0
2779   *
2780   * @param string $title Optional. Link title format. Default '%title'.
2781   */
2782  function parent_post_rel_link( $title = '%title' ) {
2783      _deprecated_function( __FUNCTION__, '3.3.0' );
2784  
2785      echo get_parent_post_rel_link($title);
2786  }
2787  
2788  /**
2789   * Add the "Dashboard"/"Visit Site" menu.
2790   *
2791   * @since 3.2.0
2792   * @deprecated 3.3.0
2793   *
2794   * @param WP_Admin_Bar $wp_admin_bar WP_Admin_Bar instance.
2795   */
2796  function wp_admin_bar_dashboard_view_site_menu( $wp_admin_bar ) {
2797      _deprecated_function( __FUNCTION__, '3.3.0' );
2798  
2799      $user_id = get_current_user_id();
2800  
2801      if ( 0 != $user_id ) {
2802          if ( is_admin() )
2803              $wp_admin_bar->add_menu( array( 'id' => 'view-site', 'title' => __( 'Visit Site' ), 'href' => home_url() ) );
2804          elseif ( is_multisite() )
2805              $wp_admin_bar->add_menu( array( 'id' => 'dashboard', 'title' => __( 'Dashboard' ), 'href' => get_dashboard_url( $user_id ) ) );
2806          else
2807              $wp_admin_bar->add_menu( array( 'id' => 'dashboard', 'title' => __( 'Dashboard' ), 'href' => admin_url() ) );
2808      }
2809  }
2810  
2811  /**
2812   * Checks if the current user belong to a given site.
2813   *
2814   * @since MU (3.0.0)
2815   * @deprecated 3.3.0 Use is_user_member_of_blog()
2816   * @see is_user_member_of_blog()
2817   *
2818   * @param int $blog_id Site ID
2819   * @return bool True if the current users belong to $blog_id, false if not.
2820   */
2821  function is_blog_user( $blog_id = 0 ) {
2822      _deprecated_function( __FUNCTION__, '3.3.0', 'is_user_member_of_blog()' );
2823  
2824      return is_user_member_of_blog( get_current_user_id(), $blog_id );
2825  }
2826  
2827  /**
2828   * Open the file handle for debugging.
2829   *
2830   * @since 0.71
2831   * @deprecated 3.4.0 Use error_log()
2832   * @see error_log()
2833   *
2834   * @link https://secure.php.net/manual/en/function.error-log.php
2835   *
2836   * @param string $filename File name.
2837   * @param string $mode     Type of access you required to the stream.
2838   * @return false Always false.
2839   */
2840  function debug_fopen( $filename, $mode ) {
2841      _deprecated_function( __FUNCTION__, '3.4.0', 'error_log()' );
2842      return false;
2843  }
2844  
2845  /**
2846   * Write contents to the file used for debugging.
2847   *
2848   * @since 0.71
2849   * @deprecated 3.4.0 Use error_log()
2850   * @see error_log()
2851   *
2852   * @link https://secure.php.net/manual/en/function.error-log.php
2853   *
2854   * @param mixed  $fp     Unused.
2855   * @param string $string Message to log.
2856   */
2857  function debug_fwrite( $fp, $string ) {
2858      _deprecated_function( __FUNCTION__, '3.4.0', 'error_log()' );
2859      if ( ! empty( $GLOBALS['debug'] ) )
2860          error_log( $string );
2861  }
2862  
2863  /**
2864   * Close the debugging file handle.
2865   *
2866   * @since 0.71
2867   * @deprecated 3.4.0 Use error_log()
2868   * @see error_log()
2869   *
2870   * @link https://secure.php.net/manual/en/function.error-log.php
2871   *
2872   * @param mixed $fp Unused.
2873   */
2874  function debug_fclose( $fp ) {
2875      _deprecated_function( __FUNCTION__, '3.4.0', 'error_log()' );
2876  }
2877  
2878  /**
2879   * Retrieve list of themes with theme data in theme directory.
2880   *
2881   * The theme is broken, if it doesn't have a parent theme and is missing either
2882   * style.css and, or index.php. If the theme has a parent theme then it is
2883   * broken, if it is missing style.css; index.php is optional.
2884   *
2885   * @since 1.5.0
2886   * @deprecated 3.4.0 Use wp_get_themes()
2887   * @see wp_get_themes()
2888   *
2889   * @return array Theme list with theme data.
2890   */
2891  function get_themes() {
2892      _deprecated_function( __FUNCTION__, '3.4.0', 'wp_get_themes()' );
2893  
2894      global $wp_themes;
2895      if ( isset( $wp_themes ) )
2896          return $wp_themes;
2897  
2898      $themes = wp_get_themes();
2899      $wp_themes = array();
2900  
2901      foreach ( $themes as $theme ) {
2902          $name = $theme->get('Name');
2903          if ( isset( $wp_themes[ $name ] ) )
2904              $wp_themes[ $name . '/' . $theme->get_stylesheet() ] = $theme;
2905          else
2906              $wp_themes[ $name ] = $theme;
2907      }
2908  
2909      return $wp_themes;
2910  }
2911  
2912  /**
2913   * Retrieve theme data.
2914   *
2915   * @since 1.5.0
2916   * @deprecated 3.4.0 Use wp_get_theme()
2917   * @see wp_get_theme()
2918   *
2919   * @param string $theme Theme name.
2920   * @return array|null Null, if theme name does not exist. Theme data, if exists.
2921   */
2922  function get_theme( $theme ) {
2923      _deprecated_function( __FUNCTION__, '3.4.0', 'wp_get_theme( $stylesheet )' );
2924  
2925      $themes = get_themes();
2926      if ( is_array( $themes ) && array_key_exists( $theme, $themes ) )
2927          return $themes[ $theme ];
2928      return null;
2929  }
2930  
2931  /**
2932   * Retrieve current theme name.
2933   *
2934   * @since 1.5.0
2935   * @deprecated 3.4.0 Use wp_get_theme()
2936   * @see wp_get_theme()
2937   *
2938   * @return string
2939   */
2940  function get_current_theme() {
2941      _deprecated_function( __FUNCTION__, '3.4.0', 'wp_get_theme()' );
2942  
2943      if ( $theme = get_option( 'current_theme' ) )
2944          return $theme;
2945  
2946      return wp_get_theme()->get('Name');
2947  }
2948  
2949  /**
2950   * Accepts matches array from preg_replace_callback in wpautop() or a string.
2951   *
2952   * Ensures that the contents of a `<pre>...</pre>` HTML block are not
2953   * converted into paragraphs or line-breaks.
2954   *
2955   * @since 1.2.0
2956   * @deprecated 3.4.0
2957   *
2958   * @param array|string $matches The array or string
2959   * @return string The pre block without paragraph/line-break conversion.
2960   */
2961  function clean_pre($matches) {
2962      _deprecated_function( __FUNCTION__, '3.4.0' );
2963  
2964      if ( is_array($matches) )
2965          $text = $matches[1] . $matches[2] . "</pre>";
2966      else
2967          $text = $matches;
2968  
2969      $text = str_replace(array('<br />', '<br/>', '<br>'), array('', '', ''), $text);
2970      $text = str_replace('<p>', "\n", $text);
2971      $text = str_replace('</p>', '', $text);
2972  
2973      return $text;
2974  }
2975  
2976  
2977  /**
2978   * Add callbacks for image header display.
2979   *
2980   * @since 2.1.0
2981   * @deprecated 3.4.0 Use add_theme_support()
2982   * @see add_theme_support()
2983   *
2984   * @param callable $wp_head_callback Call on the {@see 'wp_head'} action.
2985   * @param callable $admin_head_callback Call on custom header administration screen.
2986   * @param callable $admin_preview_callback Output a custom header image div on the custom header administration screen. Optional.
2987   */
2988  function add_custom_image_header( $wp_head_callback, $admin_head_callback, $admin_preview_callback = '' ) {
2989      _deprecated_function( __FUNCTION__, '3.4.0', 'add_theme_support( \'custom-header\', $args )' );
2990      $args = array(
2991          'wp-head-callback'    => $wp_head_callback,
2992          'admin-head-callback' => $admin_head_callback,
2993      );
2994      if ( $admin_preview_callback )
2995          $args['admin-preview-callback'] = $admin_preview_callback;
2996      return add_theme_support( 'custom-header', $args );
2997  }
2998  
2999  /**
3000   * Remove image header support.
3001   *
3002   * @since 3.1.0
3003   * @deprecated 3.4.0 Use remove_theme_support()
3004   * @see remove_theme_support()
3005   *
3006   * @return null|bool Whether support was removed.
3007   */
3008  function remove_custom_image_header() {
3009      _deprecated_function( __FUNCTION__, '3.4.0', 'remove_theme_support( \'custom-header\' )' );
3010      return remove_theme_support( 'custom-header' );
3011  }
3012  
3013  /**
3014   * Add callbacks for background image display.
3015   *
3016   * @since 3.0.0
3017   * @deprecated 3.4.0 Use add_theme_support()
3018   * @see add_theme_support()
3019   *
3020   * @param callable $wp_head_callback Call on the {@see 'wp_head'} action.
3021   * @param callable $admin_head_callback Call on custom background administration screen.
3022   * @param callable $admin_preview_callback Output a custom background image div on the custom background administration screen. Optional.
3023   */
3024  function add_custom_background( $wp_head_callback = '', $admin_head_callback = '', $admin_preview_callback = '' ) {
3025      _deprecated_function( __FUNCTION__, '3.4.0', 'add_theme_support( \'custom-background\', $args )' );
3026      $args = array();
3027      if ( $wp_head_callback )
3028          $args['wp-head-callback'] = $wp_head_callback;
3029      if ( $admin_head_callback )
3030          $args['admin-head-callback'] = $admin_head_callback;
3031      if ( $admin_preview_callback )
3032          $args['admin-preview-callback'] = $admin_preview_callback;
3033      return add_theme_support( 'custom-background', $args );
3034  }
3035  
3036  /**
3037   * Remove custom background support.
3038   *
3039   * @since 3.1.0
3040   * @deprecated 3.4.0 Use add_custom_background()
3041   * @see add_custom_background()
3042   *
3043   * @return null|bool Whether support was removed.
3044   */
3045  function remove_custom_background() {
3046      _deprecated_function( __FUNCTION__, '3.4.0', 'remove_theme_support( \'custom-background\' )' );
3047      return remove_theme_support( 'custom-background' );
3048  }
3049  
3050  /**
3051   * Retrieve theme data from parsed theme file.
3052   *
3053   * @since 1.5.0
3054   * @deprecated 3.4.0 Use wp_get_theme()
3055   * @see wp_get_theme()
3056   *
3057   * @param string $theme_file Theme file path.
3058   * @return array Theme data.
3059   */
3060  function get_theme_data( $theme_file ) {
3061      _deprecated_function( __FUNCTION__, '3.4.0', 'wp_get_theme()' );
3062      $theme = new WP_Theme( wp_basename( dirname( $theme_file ) ), dirname( dirname( $theme_file ) ) );
3063  
3064      $theme_data = array(
3065          'Name' => $theme->get('Name'),
3066          'URI' => $theme->display('ThemeURI', true, false),
3067          'Description' => $theme->display('Description', true, false),
3068          'Author' => $theme->display('Author', true, false),
3069          'AuthorURI' => $theme->display('AuthorURI', true, false),
3070          'Version' => $theme->get('Version'),
3071          'Template' => $theme->get('Template'),
3072          'Status' => $theme->get('Status'),
3073          'Tags' => $theme->get('Tags'),
3074          'Title' => $theme->get('Name'),
3075          'AuthorName' => $theme->get('Author'),
3076      );
3077  
3078      foreach ( apply_filters( 'extra_theme_headers', array() ) as $extra_header ) {
3079          if ( ! isset( $theme_data[ $extra_header ] ) )
3080              $theme_data[ $extra_header ] = $theme->get( $extra_header );
3081      }
3082  
3083      return $theme_data;
3084  }
3085  
3086  /**
3087   * Alias of update_post_cache().
3088   *
3089   * @see update_post_cache() Posts and pages are the same, alias is intentional
3090   *
3091   * @since 1.5.1
3092   * @deprecated 3.4.0 Use update_post_cache()
3093   * @see update_post_cache()
3094   *
3095   * @param array $pages list of page objects
3096   */
3097  function update_page_cache( &$pages ) {
3098      _deprecated_function( __FUNCTION__, '3.4.0', 'update_post_cache()' );
3099  
3100      update_post_cache( $pages );
3101  }
3102  
3103  /**
3104   * Will clean the page in the cache.
3105   *
3106   * Clean (read: delete) page from cache that matches $id. Will also clean cache
3107   * associated with 'all_page_ids' and 'get_pages'.
3108   *
3109   * @since 2.0.0
3110   * @deprecated 3.4.0 Use clean_post_cache
3111   * @see clean_post_cache()
3112   *
3113   * @param int $id Page ID to clean
3114   */
3115  function clean_page_cache( $id ) {
3116      _deprecated_function( __FUNCTION__, '3.4.0', 'clean_post_cache()' );
3117  
3118      clean_post_cache( $id );
3119  }
3120  
3121  /**
3122   * Retrieve nonce action "Are you sure" message.
3123   *
3124   * Deprecated in 3.4.1 and 3.5.0. Backported to 3.3.3.
3125   *
3126   * @since 2.0.4
3127   * @deprecated 3.4.1 Use wp_nonce_ays()
3128   * @see wp_nonce_ays()
3129   *
3130   * @param string $action Nonce action.
3131   * @return string Are you sure message.
3132   */
3133  function wp_explain_nonce( $action ) {
3134      _deprecated_function( __FUNCTION__, '3.4.1', 'wp_nonce_ays()' );
3135      return __( 'Are you sure you want to do this?' );
3136  }
3137  
3138  /**
3139   * Display "sticky" CSS class, if a post is sticky.
3140   *
3141   * @since 2.7.0
3142   * @deprecated 3.5.0 Use post_class()
3143   * @see post_class()
3144   *
3145   * @param int $post_id An optional post ID.
3146   */
3147  function sticky_class( $post_id = null ) {
3148      _deprecated_function( __FUNCTION__, '3.5.0', 'post_class()' );
3149      if ( is_sticky( $post_id ) )
3150          echo ' sticky';
3151  }
3152  
3153  /**
3154   * Retrieve post ancestors.
3155   *
3156   * This is no longer needed as WP_Post lazy-loads the ancestors
3157   * property with get_post_ancestors().
3158   *
3159   * @since 2.3.4
3160   * @deprecated 3.5.0 Use get_post_ancestors()
3161   * @see get_post_ancestors()
3162   *
3163   * @param WP_Post $post Post object, passed by reference (unused).
3164   */
3165  function _get_post_ancestors( &$post ) {
3166      _deprecated_function( __FUNCTION__, '3.5.0' );
3167  }
3168  
3169  /**
3170   * Load an image from a string, if PHP supports it.
3171   *
3172   * @since 2.1.0
3173   * @deprecated 3.5.0 Use wp_get_image_editor()
3174   * @see wp_get_image_editor()
3175   *
3176   * @param string $file Filename of the image to load.
3177   * @return resource The resulting image resource on success, Error string on failure.
3178   */
3179  function wp_load_image( $file ) {
3180      _deprecated_function( __FUNCTION__, '3.5.0', 'wp_get_image_editor()' );
3181  
3182      if ( is_numeric( $file ) )
3183          $file = get_attached_file( $file );
3184  
3185      if ( ! is_file( $file ) ) {
3186          /* translators: %s: File name. */
3187          return sprintf( __( 'File &#8220;%s&#8221; doesn&#8217;t exist?' ), $file );
3188      }
3189  
3190      if ( ! function_exists('imagecreatefromstring') )
3191          return __('The GD image library is not installed.');
3192  
3193      // Set artificially high because GD uses uncompressed images in memory.
3194      wp_raise_memory_limit( 'image' );
3195  
3196      $image = imagecreatefromstring( file_get_contents( $file ) );
3197  
3198      if ( ! is_resource( $image ) ) {
3199          /* translators: %s: File name. */
3200          return sprintf( __( 'File &#8220;%s&#8221; is not an image.' ), $file );
3201      }
3202  
3203      return $image;
3204  }
3205  
3206  /**
3207   * Scale down an image to fit a particular size and save a new copy of the image.
3208   *
3209   * The PNG transparency will be preserved using the function, as well as the
3210   * image type. If the file going in is PNG, then the resized image is going to
3211   * be PNG. The only supported image types are PNG, GIF, and JPEG.
3212   *
3213   * Some functionality requires API to exist, so some PHP version may lose out
3214   * support. This is not the fault of WordPress (where functionality is
3215   * downgraded, not actual defects), but of your PHP version.
3216   *
3217   * @since 2.5.0
3218   * @deprecated 3.5.0 Use wp_get_image_editor()
3219   * @see wp_get_image_editor()
3220   *
3221   * @param string $file Image file path.
3222   * @param int $max_w Maximum width to resize to.
3223   * @param int $max_h Maximum height to resize to.
3224   * @param bool $crop Optional. Whether to crop image or resize.
3225   * @param string $suffix Optional. File suffix.
3226   * @param string $dest_path Optional. New image file path.
3227   * @param int $jpeg_quality Optional, default is 90. Image quality percentage.
3228   * @return mixed WP_Error on failure. String with new destination path.
3229   */
3230  function image_resize( $file, $max_w, $max_h, $crop = false, $suffix = null, $dest_path = null, $jpeg_quality = 90 ) {
3231      _deprecated_function( __FUNCTION__, '3.5.0', 'wp_get_image_editor()' );
3232  
3233      $editor = wp_get_image_editor( $file );
3234      if ( is_wp_error( $editor ) )
3235          return $editor;
3236      $editor->set_quality( $jpeg_quality );
3237  
3238      $resized = $editor->resize( $max_w, $max_h, $crop );
3239      if ( is_wp_error( $resized ) )
3240          return $resized;
3241  
3242      $dest_file = $editor->generate_filename( $suffix, $dest_path );
3243      $saved = $editor->save( $dest_file );
3244  
3245      if ( is_wp_error( $saved ) )
3246          return $saved;
3247  
3248      return $dest_file;
3249  }
3250  
3251  /**
3252   * Retrieve a single post, based on post ID.
3253   *
3254   * Has categories in 'post_category' property or key. Has tags in 'tags_input'
3255   * property or key.
3256   *
3257   * @since 1.0.0
3258   * @deprecated 3.5.0 Use get_post()
3259   * @see get_post()
3260   *
3261   * @param int $postid Post ID.
3262   * @param string $mode How to return result, either OBJECT, ARRAY_N, or ARRAY_A.
3263   * @return WP_Post|null Post object or array holding post contents and information
3264   */
3265  function wp_get_single_post( $postid = 0, $mode = OBJECT ) {
3266      _deprecated_function( __FUNCTION__, '3.5.0', 'get_post()' );
3267      return get_post( $postid, $mode );
3268  }
3269  
3270  /**
3271   * Check that the user login name and password is correct.
3272   *
3273   * @since 0.71
3274   * @deprecated 3.5.0 Use wp_authenticate()
3275   * @see wp_authenticate()
3276   *
3277   * @param string $user_login User name.
3278   * @param string $user_pass User password.
3279   * @return bool False if does not authenticate, true if username and password authenticates.
3280   */
3281  function user_pass_ok($user_login, $user_pass) {
3282      _deprecated_function( __FUNCTION__, '3.5.0', 'wp_authenticate()' );
3283      $user = wp_authenticate( $user_login, $user_pass );
3284      if ( is_wp_error( $user ) )
3285          return false;
3286  
3287      return true;
3288  }
3289  
3290  /**
3291   * Callback formerly fired on the save_post hook. No longer needed.
3292   *
3293   * @since 2.3.0
3294   * @deprecated 3.5.0
3295   */
3296  function _save_post_hook() {}
3297  
3298  /**
3299   * Check if the installed version of GD supports particular image type
3300   *
3301   * @since 2.9.0
3302   * @deprecated 3.5.0 Use wp_image_editor_supports()
3303   * @see wp_image_editor_supports()
3304   *
3305   * @param string $mime_type
3306   * @return bool
3307   */
3308  function gd_edit_image_support($mime_type) {
3309      _deprecated_function( __FUNCTION__, '3.5.0', 'wp_image_editor_supports()' );
3310  
3311      if ( function_exists('imagetypes') ) {
3312          switch( $mime_type ) {
3313              case 'image/jpeg':
3314                  return (imagetypes() & IMG_JPG) != 0;
3315              case 'image/png':
3316                  return (imagetypes() & IMG_PNG) != 0;
3317              case 'image/gif':
3318                  return (imagetypes() & IMG_GIF) != 0;
3319          }
3320      } else {
3321          switch( $mime_type ) {
3322              case 'image/jpeg':
3323                  return function_exists('imagecreatefromjpeg');
3324              case 'image/png':
3325                  return function_exists('imagecreatefrompng');
3326              case 'image/gif':
3327                  return function_exists('imagecreatefromgif');
3328          }
3329      }
3330      return false;
3331  }
3332  
3333  /**
3334   * Converts an integer byte value to a shorthand byte value.
3335   *
3336   * @since 2.3.0
3337   * @deprecated 3.6.0 Use size_format()
3338   * @see size_format()
3339   *
3340   * @param int $bytes An integer byte value.
3341   * @return string A shorthand byte value.
3342   */
3343  function wp_convert_bytes_to_hr( $bytes ) {
3344      _deprecated_function( __FUNCTION__, '3.6.0', 'size_format()' );
3345  
3346      $units = array( 0 => 'B', 1 => 'KB', 2 => 'MB', 3 => 'GB', 4 => 'TB' );
3347      $log   = log( $bytes, KB_IN_BYTES );
3348      $power = (int) $log;
3349      $size  = KB_IN_BYTES ** ( $log - $power );
3350  
3351      if ( ! is_nan( $size ) && array_key_exists( $power, $units ) ) {
3352          $unit = $units[ $power ];
3353      } else {
3354          $size = $bytes;
3355          $unit = $units[0];
3356      }
3357  
3358      return $size . $unit;
3359  }
3360  
3361  /**
3362   * Formerly used internally to tidy up the search terms.
3363   *
3364   * @since 2.9.0
3365   * @access private
3366   * @deprecated 3.7.0
3367   *
3368   * @param string $t Search terms to "tidy", e.g. trim.
3369   * @return string Trimmed search terms.
3370   */
3371  function _search_terms_tidy( $t ) {
3372      _deprecated_function( __FUNCTION__, '3.7.0' );
3373      return trim( $t, "\"'\n\r " );
3374  }
3375  
3376  /**
3377   * Determine if TinyMCE is available.
3378   *
3379   * Checks to see if the user has deleted the tinymce files to slim down
3380   * their WordPress installation.
3381   *
3382   * @since 2.1.0
3383   * @deprecated 3.9.0
3384   *
3385   * @return bool Whether TinyMCE exists.
3386   */
3387  function rich_edit_exists() {
3388      global $wp_rich_edit_exists;
3389      _deprecated_function( __FUNCTION__, '3.9.0' );
3390  
3391      if ( ! isset( $wp_rich_edit_exists ) )
3392          $wp_rich_edit_exists = file_exists( ABSPATH . WPINC . '/js/tinymce/tinymce.js' );
3393  
3394      return $wp_rich_edit_exists;
3395  }
3396  
3397  /**
3398   * Old callback for tag link tooltips.
3399   *
3400   * @since 2.7.0
3401   * @access private
3402   * @deprecated 3.9.0
3403   *
3404   * @param int $count Number of topics.
3405   * @return int Number of topics.
3406   */
3407  function default_topic_count_text( $count ) {
3408      return $count;
3409  }
3410  
3411  /**
3412   * Formerly used to escape strings before inserting into the DB.
3413   *
3414   * Has not performed this function for many, many years. Use wpdb::prepare() instead.
3415   *
3416   * @since 0.71
3417   * @deprecated 3.9.0
3418   *
3419   * @param string $content The text to format.
3420   * @return string The very same text.
3421   */
3422  function format_to_post( $content ) {
3423      _deprecated_function( __FUNCTION__, '3.9.0' );
3424      return $content;
3425  }
3426  
3427  /**
3428   * Formerly used to escape strings before searching the DB. It was poorly documented and never worked as described.
3429   *
3430   * @since 2.5.0
3431   * @deprecated 4.0.0 Use wpdb::esc_like()
3432   * @see wpdb::esc_like()
3433   *
3434   * @param string $text The text to be escaped.
3435   * @return string text, safe for inclusion in LIKE query.
3436   */
3437  function like_escape($text) {
3438      _deprecated_function( __FUNCTION__, '4.0.0', 'wpdb::esc_like()' );
3439      return str_replace( array( "%", "_" ), array( "\\%", "\\_" ), $text );
3440  }
3441  
3442  /**
3443   * Determines if the URL can be accessed over SSL.
3444   *
3445   * Determines if the URL can be accessed over SSL by using the WordPress HTTP API to access
3446   * the URL using https as the scheme.
3447   *
3448   * @since 2.5.0
3449   * @deprecated 4.0.0
3450   *
3451   * @param string $url The URL to test.
3452   * @return bool Whether SSL access is available.
3453   */
3454  function url_is_accessable_via_ssl( $url ) {
3455      _deprecated_function( __FUNCTION__, '4.0.0' );
3456  
3457      $response = wp_remote_get( set_url_scheme( $url, 'https' ) );
3458  
3459      if ( !is_wp_error( $response ) ) {
3460          $status = wp_remote_retrieve_response_code( $response );
3461          if ( 200 == $status || 401 == $status ) {
3462              return true;
3463          }
3464      }
3465  
3466      return false;
3467  }
3468  
3469  /**
3470   * Start preview theme output buffer.
3471   *
3472   * Will only perform task if the user has permissions and template and preview
3473   * query variables exist.
3474   *
3475   * @since 2.6.0
3476   * @deprecated 4.3.0
3477   */
3478  function preview_theme() {
3479      _deprecated_function( __FUNCTION__, '4.3.0' );
3480  }
3481  
3482  /**
3483   * Private function to modify the current template when previewing a theme
3484   *
3485   * @since 2.9.0
3486   * @deprecated 4.3.0
3487   * @access private
3488   *
3489   * @return string
3490   */
3491  function _preview_theme_template_filter() {
3492      _deprecated_function( __FUNCTION__, '4.3.0' );
3493      return '';
3494  }
3495  
3496  /**
3497   * Private function to modify the current stylesheet when previewing a theme
3498   *
3499   * @since 2.9.0
3500   * @deprecated 4.3.0
3501   * @access private
3502   *
3503   * @return string
3504   */
3505  function _preview_theme_stylesheet_filter() {
3506      _deprecated_function( __FUNCTION__, '4.3.0' );
3507      return '';
3508  }
3509  
3510  /**
3511   * Callback function for ob_start() to capture all links in the theme.
3512   *
3513   * @since 2.6.0
3514   * @deprecated 4.3.0
3515   * @access private
3516   *
3517   * @param string $content
3518   * @return string
3519   */
3520  function preview_theme_ob_filter( $content ) {
3521      _deprecated_function( __FUNCTION__, '4.3.0' );
3522      return $content;
3523  }
3524  
3525  /**
3526   * Manipulates preview theme links in order to control and maintain location.
3527   *
3528   * Callback function for preg_replace_callback() to accept and filter matches.
3529   *
3530   * @since 2.6.0
3531   * @deprecated 4.3.0
3532   * @access private
3533   *
3534   * @param array $matches
3535   * @return string
3536   */
3537  function preview_theme_ob_filter_callback( $matches ) {
3538      _deprecated_function( __FUNCTION__, '4.3.0' );
3539      return '';
3540  }
3541  
3542  /**
3543   * Formats text for the rich text editor.
3544   *
3545   * The {@see 'richedit_pre'} filter is applied here. If $text is empty the filter will
3546   * be applied to an empty string.
3547   *
3548   * @since 2.0.0
3549   * @deprecated 4.3.0 Use format_for_editor()
3550   * @see format_for_editor()
3551   *
3552   * @param string $text The text to be formatted.
3553   * @return string The formatted text after filter is applied.
3554   */
3555  function wp_richedit_pre($text) {
3556      _deprecated_function( __FUNCTION__, '4.3.0', 'format_for_editor()' );
3557  
3558      if ( empty( $text ) ) {
3559          /**
3560           * Filters text returned for the rich text editor.
3561           *
3562           * This filter is first evaluated, and the value returned, if an empty string
3563           * is passed to wp_richedit_pre(). If an empty string is passed, it results
3564           * in a break tag and line feed.
3565           *
3566           * If a non-empty string is passed, the filter is evaluated on the wp_richedit_pre()
3567           * return after being formatted.
3568           *
3569           * @since 2.0.0
3570           * @deprecated 4.3.0
3571           *
3572           * @param string $output Text for the rich text editor.
3573           */
3574          return apply_filters( 'richedit_pre', '' );
3575      }
3576  
3577      $output = convert_chars($text);
3578      $output = wpautop($output);
3579      $output = htmlspecialchars($output, ENT_NOQUOTES, get_option( 'blog_charset' ) );
3580  
3581      /** This filter is documented in wp-includes/deprecated.php */
3582      return apply_filters( 'richedit_pre', $output );
3583  }
3584  
3585  /**
3586   * Formats text for the HTML editor.
3587   *
3588   * Unless $output is empty it will pass through htmlspecialchars before the
3589   * {@see 'htmledit_pre'} filter is applied.
3590   *
3591   * @since 2.5.0
3592   * @deprecated 4.3.0 Use format_for_editor()
3593   * @see format_for_editor()
3594   *
3595   * @param string $output The text to be formatted.
3596   * @return string Formatted text after filter applied.
3597   */
3598  function wp_htmledit_pre($output) {
3599      _deprecated_function( __FUNCTION__, '4.3.0', 'format_for_editor()' );
3600  
3601      if ( !empty($output) )
3602          $output = htmlspecialchars($output, ENT_NOQUOTES, get_option( 'blog_charset' ) ); // convert only < > &
3603  
3604      /**
3605       * Filters the text before it is formatted for the HTML editor.
3606       *
3607       * @since 2.5.0
3608       * @deprecated 4.3.0
3609       *
3610       * @param string $output The HTML-formatted text.
3611       */
3612      return apply_filters( 'htmledit_pre', $output );
3613  }
3614  
3615  /**
3616   * Retrieve permalink from post ID.
3617   *
3618   * @since 1.0.0
3619   * @deprecated 4.4.0 Use get_permalink()
3620   * @see get_permalink()
3621   *
3622   * @param int|WP_Post $post_id Optional. Post ID or WP_Post object. Default is global $post.
3623   * @return string|false
3624   */
3625  function post_permalink( $post_id = 0 ) {
3626      _deprecated_function( __FUNCTION__, '4.4.0', 'get_permalink()' );
3627  
3628      return get_permalink( $post_id );
3629  }
3630  
3631  /**
3632   * Perform a HTTP HEAD or GET request.
3633   *
3634   * If $file_path is a writable filename, this will do a GET request and write
3635   * the file to that path.
3636   *
3637   * @since 2.5.0
3638   * @deprecated 4.4.0 Use WP_Http
3639   * @see WP_Http
3640   *
3641   * @param string      $url       URL to fetch.
3642   * @param string|bool $file_path Optional. File path to write request to. Default false.
3643   * @param int         $red       Optional. The number of Redirects followed, Upon 5 being hit,
3644   *                               returns false. Default 1.
3645   * @return bool|string False on failure and string of headers if HEAD request.
3646   */
3647  function wp_get_http( $url, $file_path = false, $red = 1 ) {
3648      _deprecated_function( __FUNCTION__, '4.4.0', 'WP_Http' );
3649  
3650      @set_time_limit( 60 );
3651  
3652      if ( $red > 5 )
3653          return false;
3654  
3655      $options = array();
3656      $options['redirection'] = 5;
3657  
3658      if ( false == $file_path )
3659          $options['method'] = 'HEAD';
3660      else
3661          $options['method'] = 'GET';
3662  
3663      $response = wp_safe_remote_request( $url, $options );
3664  
3665      if ( is_wp_error( $response ) )
3666          return false;
3667  
3668      $headers = wp_remote_retrieve_headers( $response );
3669      $headers['response'] = wp_remote_retrieve_response_code( $response );
3670  
3671      // WP_HTTP no longer follows redirects for HEAD requests.
3672      if ( 'HEAD' == $options['method'] && in_array($headers['response'], array(301, 302)) && isset( $headers['location'] ) ) {
3673          return wp_get_http( $headers['location'], $file_path, ++$red );
3674      }
3675  
3676      if ( false == $file_path )
3677          return $headers;
3678  
3679      // GET request - write it to the supplied filename
3680      $out_fp = fopen($file_path, 'w');
3681      if ( !$out_fp )
3682          return $headers;
3683  
3684      fwrite( $out_fp,  wp_remote_retrieve_body( $response ) );
3685      fclose($out_fp);
3686      clearstatcache();
3687  
3688      return $headers;
3689  }
3690  
3691  /**
3692   * Whether SSL login should be forced.
3693   *
3694   * @since 2.6.0
3695   * @deprecated 4.4.0 Use force_ssl_admin()
3696   * @see force_ssl_admin()
3697   *
3698   * @param string|bool $force Optional Whether to force SSL login. Default null.
3699   * @return bool True if forced, false if not forced.
3700   */
3701  function force_ssl_login( $force = null ) {
3702      _deprecated_function( __FUNCTION__, '4.4.0', 'force_ssl_admin()' );
3703      return force_ssl_admin( $force );
3704  }
3705  
3706  /**
3707   * Retrieve path of comment popup template in current or parent template.
3708   *
3709   * @since 1.5.0
3710   * @deprecated 4.5.0
3711   *
3712   * @return string Full path to comments popup template file.
3713   */
3714  function get_comments_popup_template() {
3715      _deprecated_function( __FUNCTION__, '4.5.0' );
3716  
3717      return '';
3718  }
3719  
3720  /**
3721   * Determines whether the current URL is within the comments popup window.
3722   * 
3723   * For more information on this and similar theme functions, check out
3724   * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ 
3725   * Conditional Tags} article in the Theme Developer Handbook.
3726   * 
3727   * @since 1.5.0
3728   * @deprecated 4.5.0
3729   *
3730   * @return bool
3731   */
3732  function is_comments_popup() {
3733      _deprecated_function( __FUNCTION__, '4.5.0' );
3734  
3735      return false;
3736  }
3737  
3738  /**
3739   * Display the JS popup script to show a comment.
3740   *
3741   * @since 0.71
3742   * @deprecated 4.5.0
3743   */
3744  function comments_popup_script() {
3745      _deprecated_function( __FUNCTION__, '4.5.0' );
3746  }
3747  
3748  /**
3749   * Adds element attributes to open links in new tabs.
3750   *
3751   * @since 0.71
3752   * @deprecated 4.5.0
3753   *
3754   * @param string $text Content to replace links to open in a new tab.
3755   * @return string Content that has filtered links.
3756   */
3757  function popuplinks( $text ) {
3758      _deprecated_function( __FUNCTION__, '4.5.0' );
3759      $text = preg_replace('/<a (.+?)>/i', "<a $1 target='_blank' rel='external'>", $text);
3760      return $text;
3761  }
3762  
3763  /**
3764   * The Google Video embed handler callback.
3765   *
3766   * Deprecated function that previously assisted in turning Google Video URLs
3767   * into embeds but that service has since been shut down.
3768   *
3769   * @since 2.9.0
3770   * @deprecated 4.6.0
3771   *
3772   * @return string An empty string.
3773   */
3774  function wp_embed_handler_googlevideo( $matches, $attr, $url, $rawattr ) {
3775      _deprecated_function( __FUNCTION__, '4.6.0' );
3776  
3777      return '';
3778  }
3779  
3780  /**
3781   * Retrieve path of paged template in current or parent template.
3782   *
3783   * @since 1.5.0
3784   * @deprecated 4.7.0 The paged.php template is no longer part of the theme template hierarchy.
3785   *
3786   * @return string Full path to paged template file.
3787   */
3788  function get_paged_template() {
3789      _deprecated_function( __FUNCTION__, '4.7.0' );
3790  
3791      return get_query_template( 'paged' );
3792  }
3793  
3794  /**
3795   * Removes the HTML JavaScript entities found in early versions of Netscape 4.
3796   *
3797   * Previously, this function was pulled in from the original
3798   * import of kses and removed a specific vulnerability only
3799   * existent in early version of Netscape 4. However, this
3800   * vulnerability never affected any other browsers and can
3801   * be considered safe for the modern web.
3802   *
3803   * The regular expression which sanitized this vulnerability
3804   * has been removed in consideration of the performance and
3805   * energy demands it placed, now merely passing through its
3806   * input to the return.
3807   *
3808   * @since 1.0.0
3809   * @deprecated 4.7.0 Officially dropped security support for Netscape 4.
3810   *
3811   * @param string $string
3812   * @return string
3813   */
3814  function wp_kses_js_entities( $string ) {
3815      _deprecated_function( __FUNCTION__, '4.7.0' );
3816  
3817      return preg_replace( '%&\s*\{[^}]*(\}\s*;?|$)%', '', $string );
3818  }
3819  
3820  /**
3821   * Sort categories by ID.
3822   *
3823   * Used by usort() as a callback, should not be used directly. Can actually be
3824   * used to sort any term object.
3825   *
3826   * @since 2.3.0
3827   * @deprecated 4.7.0 Use wp_list_sort()
3828   * @access private
3829   *
3830   * @param object $a
3831   * @param object $b
3832   * @return int
3833   */
3834  function _usort_terms_by_ID( $a, $b ) {
3835      _deprecated_function( __FUNCTION__, '4.7.0', 'wp_list_sort()' );
3836  
3837      if ( $a->term_id > $b->term_id )
3838          return 1;
3839      elseif ( $a->term_id < $b->term_id )
3840          return -1;
3841      else
3842          return 0;
3843  }
3844  
3845  /**
3846   * Sort categories by name.
3847   *
3848   * Used by usort() as a callback, should not be used directly. Can actually be
3849   * used to sort any term object.
3850   *
3851   * @since 2.3.0
3852   * @deprecated 4.7.0 Use wp_list_sort()
3853   * @access private
3854   *
3855   * @param object $a
3856   * @param object $b
3857   * @return int
3858   */
3859  function _usort_terms_by_name( $a, $b ) {
3860      _deprecated_function( __FUNCTION__, '4.7.0', 'wp_list_sort()' );
3861  
3862      return strcmp( $a->name, $b->name );
3863  }
3864  
3865  /**
3866   * Sort menu items by the desired key.
3867   *
3868   * @since 3.0.0
3869   * @deprecated 4.7.0 Use wp_list_sort()
3870   * @access private
3871   *
3872   * @global string $_menu_item_sort_prop
3873   *
3874   * @param object $a The first object to compare
3875   * @param object $b The second object to compare
3876   * @return int -1, 0, or 1 if $a is considered to be respectively less than, equal to, or greater than $b.
3877   */
3878  function _sort_nav_menu_items( $a, $b ) {
3879      global $_menu_item_sort_prop;
3880  
3881      _deprecated_function( __FUNCTION__, '4.7.0', 'wp_list_sort()' );
3882  
3883      if ( empty( $_menu_item_sort_prop ) )
3884          return 0;
3885  
3886      if ( ! isset( $a->$_menu_item_sort_prop ) || ! isset( $b->$_menu_item_sort_prop ) )
3887          return 0;
3888  
3889      $_a = (int) $a->$_menu_item_sort_prop;
3890      $_b = (int) $b->$_menu_item_sort_prop;
3891  
3892      if ( $a->$_menu_item_sort_prop == $b->$_menu_item_sort_prop )
3893          return 0;
3894      elseif ( $_a == $a->$_menu_item_sort_prop && $_b == $b->$_menu_item_sort_prop )
3895          return $_a < $_b ? -1 : 1;
3896      else
3897          return strcmp( $a->$_menu_item_sort_prop, $b->$_menu_item_sort_prop );
3898  }
3899  
3900  /**
3901   * Retrieves the Press This bookmarklet link.
3902   *
3903   * @since 2.6.0
3904   * @deprecated 4.9.0
3905   *
3906   */
3907  function get_shortcut_link() {
3908      _deprecated_function( __FUNCTION__, '4.9.0' );
3909  
3910      $link = '';
3911  
3912      /**
3913       * Filters the Press This bookmarklet link.
3914       *
3915       * @since 2.6.0
3916       * @deprecated 4.9.0
3917       *
3918       * @param string $link The Press This bookmarklet link.
3919       */
3920      return apply_filters( 'shortcut_link', $link );
3921  }
3922  
3923  /**
3924  * Ajax handler for saving a post from Press This.
3925  *
3926  * @since 4.2.0
3927  * @deprecated 4.9.0
3928  */
3929  function wp_ajax_press_this_save_post() {
3930      _deprecated_function( __FUNCTION__, '4.9.0' );
3931      if ( is_plugin_active( 'press-this/press-this-plugin.php' ) ) {
3932          include( WP_PLUGIN_DIR . '/press-this/class-wp-press-this-plugin.php' );
3933          $wp_press_this = new WP_Press_This_Plugin();
3934          $wp_press_this->save_post();
3935      } else {
3936          wp_send_json_error( array( 'errorMessage' => __( 'The Press This plugin is required.' ) ) );
3937      }
3938  }
3939  
3940  /**
3941  * Ajax handler for creating new category from Press This.
3942  *
3943  * @since 4.2.0
3944  * @deprecated 4.9.0
3945  */
3946  function wp_ajax_press_this_add_category() {
3947      _deprecated_function( __FUNCTION__, '4.9.0' );
3948      if ( is_plugin_active( 'press-this/press-this-plugin.php' ) ) {
3949          include( WP_PLUGIN_DIR . '/press-this/class-wp-press-this-plugin.php' );
3950          $wp_press_this = new WP_Press_This_Plugin();
3951          $wp_press_this->add_category();
3952      } else {
3953          wp_send_json_error( array( 'errorMessage' => __( 'The Press This plugin is required.' ) ) );
3954      }
3955  }