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/wp-includes/ -> rewrite.php (source)

   1  <?php
   2  /**
   3   * WordPress Rewrite API
   4   *
   5   * @package WordPress
   6   * @subpackage Rewrite
   7   */
   8  
   9  /**
  10   * Endpoint mask that matches nothing.
  11   *
  12   * @since 2.1.0
  13   */
  14  define( 'EP_NONE', 0 );
  15  
  16  /**
  17   * Endpoint mask that matches post permalinks.
  18   *
  19   * @since 2.1.0
  20   */
  21  define( 'EP_PERMALINK', 1 );
  22  
  23  /**
  24   * Endpoint mask that matches attachment permalinks.
  25   *
  26   * @since 2.1.0
  27   */
  28  define( 'EP_ATTACHMENT', 2 );
  29  
  30  /**
  31   * Endpoint mask that matches any date archives.
  32   *
  33   * @since 2.1.0
  34   */
  35  define( 'EP_DATE', 4 );
  36  
  37  /**
  38   * Endpoint mask that matches yearly archives.
  39   *
  40   * @since 2.1.0
  41   */
  42  define( 'EP_YEAR', 8 );
  43  
  44  /**
  45   * Endpoint mask that matches monthly archives.
  46   *
  47   * @since 2.1.0
  48   */
  49  define( 'EP_MONTH', 16 );
  50  
  51  /**
  52   * Endpoint mask that matches daily archives.
  53   *
  54   * @since 2.1.0
  55   */
  56  define( 'EP_DAY', 32 );
  57  
  58  /**
  59   * Endpoint mask that matches the site root.
  60   *
  61   * @since 2.1.0
  62   */
  63  define( 'EP_ROOT', 64 );
  64  
  65  /**
  66   * Endpoint mask that matches comment feeds.
  67   *
  68   * @since 2.1.0
  69   */
  70  define( 'EP_COMMENTS', 128 );
  71  
  72  /**
  73   * Endpoint mask that matches searches.
  74   *
  75   * Note that this only matches a search at a "pretty" URL such as
  76   * `/search/my-search-term`, not `?s=my-search-term`.
  77   *
  78   * @since 2.1.0
  79   */
  80  define( 'EP_SEARCH', 256 );
  81  
  82  /**
  83   * Endpoint mask that matches category archives.
  84   *
  85   * @since 2.1.0
  86   */
  87  define( 'EP_CATEGORIES', 512 );
  88  
  89  /**
  90   * Endpoint mask that matches tag archives.
  91   *
  92   * @since 2.3.0
  93   */
  94  define( 'EP_TAGS', 1024 );
  95  
  96  /**
  97   * Endpoint mask that matches author archives.
  98   *
  99   * @since 2.1.0
 100   */
 101  define( 'EP_AUTHORS', 2048 );
 102  
 103  /**
 104   * Endpoint mask that matches pages.
 105   *
 106   * @since 2.1.0
 107   */
 108  define( 'EP_PAGES', 4096 );
 109  
 110  /**
 111   * Endpoint mask that matches all archive views.
 112   *
 113   * @since 3.7.0
 114   */
 115  define( 'EP_ALL_ARCHIVES', EP_DATE | EP_YEAR | EP_MONTH | EP_DAY | EP_CATEGORIES | EP_TAGS | EP_AUTHORS );
 116  
 117  /**
 118   * Endpoint mask that matches everything.
 119   *
 120   * @since 2.1.0
 121   */
 122  define( 'EP_ALL', EP_PERMALINK | EP_ATTACHMENT | EP_ROOT | EP_COMMENTS | EP_SEARCH | EP_PAGES | EP_ALL_ARCHIVES );
 123  
 124  /**
 125   * Adds a rewrite rule that transforms a URL structure to a set of query vars.
 126   *
 127   * Any value in the $after parameter that isn't 'bottom' will result in the rule
 128   * being placed at the top of the rewrite rules.
 129   *
 130   * @since 2.1.0
 131   * @since 4.4.0 Array support was added to the `$query` parameter.
 132   *
 133   * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 134   *
 135   * @param string       $regex Regular expression to match request against.
 136   * @param string|array $query The corresponding query vars for this rewrite rule.
 137   * @param string       $after Optional. Priority of the new rule. Accepts 'top'
 138   *                            or 'bottom'. Default 'bottom'.
 139   */
 140  function add_rewrite_rule( $regex, $query, $after = 'bottom' ) {
 141      global $wp_rewrite;
 142  
 143      $wp_rewrite->add_rule( $regex, $query, $after );
 144  }
 145  
 146  /**
 147   * Adds a new rewrite tag (like %postname%).
 148   *
 149   * The `$query` parameter is optional. If it is omitted you must ensure that you call
 150   * this on, or before, the {@see 'init'} hook. This is because `$query` defaults to
 151   * `$tag=`, and for this to work a new query var has to be added.
 152   *
 153   * @since 2.1.0
 154   *
 155   * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 156   * @global WP         $wp         Current WordPress environment instance.
 157   *
 158   * @param string $tag   Name of the new rewrite tag.
 159   * @param string $regex Regular expression to substitute the tag for in rewrite rules.
 160   * @param string $query Optional. String to append to the rewritten query. Must end in '='. Default empty.
 161   */
 162  function add_rewrite_tag( $tag, $regex, $query = '' ) {
 163      // Validate the tag's name.
 164      if ( strlen( $tag ) < 3 || '%' !== $tag[0] || '%' !== $tag[ strlen( $tag ) - 1 ] ) {
 165          return;
 166      }
 167  
 168      global $wp_rewrite, $wp;
 169  
 170      if ( empty( $query ) ) {
 171          $qv = trim( $tag, '%' );
 172          $wp->add_query_var( $qv );
 173          $query = $qv . '=';
 174      }
 175  
 176      $wp_rewrite->add_rewrite_tag( $tag, $regex, $query );
 177  }
 178  
 179  /**
 180   * Removes an existing rewrite tag (like %postname%).
 181   *
 182   * @since 4.5.0
 183   *
 184   * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 185   *
 186   * @param string $tag Name of the rewrite tag.
 187   */
 188  function remove_rewrite_tag( $tag ) {
 189      global $wp_rewrite;
 190      $wp_rewrite->remove_rewrite_tag( $tag );
 191  }
 192  
 193  /**
 194   * Adds a permalink structure.
 195   *
 196   * @since 3.0.0
 197   *
 198   * @see WP_Rewrite::add_permastruct()
 199   * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 200   *
 201   * @param string $name   Name for permalink structure.
 202   * @param string $struct Permalink structure.
 203   * @param array  $args   Optional. Arguments for building the rules from the permalink structure,
 204   *                       see WP_Rewrite::add_permastruct() for full details. Default empty array.
 205   */
 206  function add_permastruct( $name, $struct, $args = array() ) {
 207      global $wp_rewrite;
 208  
 209      // Back-compat for the old parameters: $with_front and $ep_mask.
 210      if ( ! is_array( $args ) ) {
 211          $args = array( 'with_front' => $args );
 212      }
 213      if ( func_num_args() == 4 ) {
 214          $args['ep_mask'] = func_get_arg( 3 );
 215      }
 216  
 217      $wp_rewrite->add_permastruct( $name, $struct, $args );
 218  }
 219  
 220  /**
 221   * Removes a permalink structure.
 222   *
 223   * Can only be used to remove permastructs that were added using add_permastruct().
 224   * Built-in permastructs cannot be removed.
 225   *
 226   * @since 4.5.0
 227   *
 228   * @see WP_Rewrite::remove_permastruct()
 229   * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 230   *
 231   * @param string $name Name for permalink structure.
 232   */
 233  function remove_permastruct( $name ) {
 234      global $wp_rewrite;
 235  
 236      $wp_rewrite->remove_permastruct( $name );
 237  }
 238  
 239  /**
 240   * Adds a new feed type like /atom1/.
 241   *
 242   * @since 2.1.0
 243   *
 244   * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 245   *
 246   * @param string   $feedname Feed name.
 247   * @param callable $callback Callback to run on feed display.
 248   * @return string Feed action name.
 249   */
 250  function add_feed( $feedname, $callback ) {
 251      global $wp_rewrite;
 252  
 253      if ( ! in_array( $feedname, $wp_rewrite->feeds, true ) ) {
 254          $wp_rewrite->feeds[] = $feedname;
 255      }
 256  
 257      $hook = 'do_feed_' . $feedname;
 258  
 259      // Remove default function hook.
 260      remove_action( $hook, $hook );
 261  
 262      add_action( $hook, $callback, 10, 2 );
 263  
 264      return $hook;
 265  }
 266  
 267  /**
 268   * Removes rewrite rules and then recreate rewrite rules.
 269   *
 270   * @since 3.0.0
 271   *
 272   * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 273   *
 274   * @param bool $hard Whether to update .htaccess (hard flush) or just update
 275   *                   rewrite_rules option (soft flush). Default is true (hard).
 276   */
 277  function flush_rewrite_rules( $hard = true ) {
 278      global $wp_rewrite;
 279  
 280      if ( is_callable( array( $wp_rewrite, 'flush_rules' ) ) ) {
 281          $wp_rewrite->flush_rules( $hard );
 282      }
 283  }
 284  
 285  /**
 286   * Adds an endpoint, like /trackback/.
 287   *
 288   * Adding an endpoint creates extra rewrite rules for each of the matching
 289   * places specified by the provided bitmask. For example:
 290   *
 291   *     add_rewrite_endpoint( 'json', EP_PERMALINK | EP_PAGES );
 292   *
 293   * will add a new rewrite rule ending with "json(/(.*))?/?$" for every permastruct
 294   * that describes a permalink (post) or page. This is rewritten to "json=$match"
 295   * where $match is the part of the URL matched by the endpoint regex (e.g. "foo" in
 296   * "[permalink]/json/foo/").
 297   *
 298   * A new query var with the same name as the endpoint will also be created.
 299   *
 300   * When specifying $places ensure that you are using the EP_* constants (or a
 301   * combination of them using the bitwise OR operator) as their values are not
 302   * guaranteed to remain static (especially `EP_ALL`).
 303   *
 304   * Be sure to flush the rewrite rules - see flush_rewrite_rules() - when your plugin gets
 305   * activated and deactivated.
 306   *
 307   * @since 2.1.0
 308   * @since 4.3.0 Added support for skipping query var registration by passing `false` to `$query_var`.
 309   *
 310   * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 311   *
 312   * @param string      $name      Name of the endpoint.
 313   * @param int         $places    Endpoint mask describing the places the endpoint should be added.
 314   *                               Accepts a mask of:
 315   *                               - `EP_ALL`
 316   *                               - `EP_NONE`
 317   *                               - `EP_ALL_ARCHIVES`
 318   *                               - `EP_ATTACHMENT`
 319   *                               - `EP_AUTHORS`
 320   *                               - `EP_CATEGORIES`
 321   *                               - `EP_COMMENTS`
 322   *                               - `EP_DATE`
 323   *                               - `EP_DAY`
 324   *                               - `EP_MONTH`
 325   *                               - `EP_PAGES`
 326   *                               - `EP_PERMALINK`
 327   *                               - `EP_ROOT`
 328   *                               - `EP_SEARCH`
 329   *                               - `EP_TAGS`
 330   *                               - `EP_YEAR`
 331   * @param string|bool $query_var Name of the corresponding query variable. Pass `false` to skip registering a query_var
 332   *                               for this endpoint. Defaults to the value of `$name`.
 333   */
 334  function add_rewrite_endpoint( $name, $places, $query_var = true ) {
 335      global $wp_rewrite;
 336      $wp_rewrite->add_endpoint( $name, $places, $query_var );
 337  }
 338  
 339  /**
 340   * Filters the URL base for taxonomies.
 341   *
 342   * To remove any manually prepended /index.php/.
 343   *
 344   * @access private
 345   * @since 2.6.0
 346   *
 347   * @param string $base The taxonomy base that we're going to filter
 348   * @return string
 349   */
 350  function _wp_filter_taxonomy_base( $base ) {
 351      if ( ! empty( $base ) ) {
 352          $base = preg_replace( '|^/index\.php/|', '', $base );
 353          $base = trim( $base, '/' );
 354      }
 355      return $base;
 356  }
 357  
 358  
 359  /**
 360   * Resolves numeric slugs that collide with date permalinks.
 361   *
 362   * Permalinks of posts with numeric slugs can sometimes look to WP_Query::parse_query()
 363   * like a date archive, as when your permalink structure is `/%year%/%postname%/` and
 364   * a post with post_name '05' has the URL `/2015/05/`.
 365   *
 366   * This function detects conflicts of this type and resolves them in favor of the
 367   * post permalink.
 368   *
 369   * Note that, since 4.3.0, wp_unique_post_slug() prevents the creation of post slugs
 370   * that would result in a date archive conflict. The resolution performed in this
 371   * function is primarily for legacy content, as well as cases when the admin has changed
 372   * the site's permalink structure in a way that introduces URL conflicts.
 373   *
 374   * @since 4.3.0
 375   *
 376   * @param array $query_vars Optional. Query variables for setting up the loop, as determined in
 377   *                          WP::parse_request(). Default empty array.
 378   * @return array Returns the original array of query vars, with date/post conflicts resolved.
 379   */
 380  function wp_resolve_numeric_slug_conflicts( $query_vars = array() ) {
 381      if ( ! isset( $query_vars['year'] ) && ! isset( $query_vars['monthnum'] ) && ! isset( $query_vars['day'] ) ) {
 382          return $query_vars;
 383      }
 384  
 385      // Identify the 'postname' position in the permastruct array.
 386      $permastructs   = array_values( array_filter( explode( '/', get_option( 'permalink_structure' ) ) ) );
 387      $postname_index = array_search( '%postname%', $permastructs, true );
 388  
 389      if ( false === $postname_index ) {
 390          return $query_vars;
 391      }
 392  
 393      /*
 394       * A numeric slug could be confused with a year, month, or day, depending on position. To account for
 395       * the possibility of post pagination (eg 2015/2 for the second page of a post called '2015'), our
 396       * `is_*` checks are generous: check for year-slug clashes when `is_year` *or* `is_month`, and check
 397       * for month-slug clashes when `is_month` *or* `is_day`.
 398       */
 399      $compare = '';
 400      if ( 0 === $postname_index && ( isset( $query_vars['year'] ) || isset( $query_vars['monthnum'] ) ) ) {
 401          $compare = 'year';
 402      } elseif ( $postname_index && '%year%' === $permastructs[ $postname_index - 1 ] && ( isset( $query_vars['monthnum'] ) || isset( $query_vars['day'] ) ) ) {
 403          $compare = 'monthnum';
 404      } elseif ( $postname_index && '%monthnum%' === $permastructs[ $postname_index - 1 ] && isset( $query_vars['day'] ) ) {
 405          $compare = 'day';
 406      }
 407  
 408      if ( ! $compare ) {
 409          return $query_vars;
 410      }
 411  
 412      // This is the potentially clashing slug.
 413      $value = '';
 414      if ( $compare && array_key_exists( $compare, $query_vars ) ) {
 415          $value = $query_vars[ $compare ];
 416      }
 417  
 418      $post = get_page_by_path( $value, OBJECT, 'post' );
 419      if ( ! ( $post instanceof WP_Post ) ) {
 420          return $query_vars;
 421      }
 422  
 423      // If the date of the post doesn't match the date specified in the URL, resolve to the date archive.
 424      if ( preg_match( '/^([0-9]{4})\-([0-9]{2})/', $post->post_date, $matches ) && isset( $query_vars['year'] ) && ( 'monthnum' === $compare || 'day' === $compare ) ) {
 425          // $matches[1] is the year the post was published.
 426          if ( (int) $query_vars['year'] !== (int) $matches[1] ) {
 427              return $query_vars;
 428          }
 429  
 430          // $matches[2] is the month the post was published.
 431          if ( 'day' === $compare && isset( $query_vars['monthnum'] ) && (int) $query_vars['monthnum'] !== (int) $matches[2] ) {
 432              return $query_vars;
 433          }
 434      }
 435  
 436      /*
 437       * If the located post contains nextpage pagination, then the URL chunk following postname may be
 438       * intended as the page number. Verify that it's a valid page before resolving to it.
 439       */
 440      $maybe_page = '';
 441      if ( 'year' === $compare && isset( $query_vars['monthnum'] ) ) {
 442          $maybe_page = $query_vars['monthnum'];
 443      } elseif ( 'monthnum' === $compare && isset( $query_vars['day'] ) ) {
 444          $maybe_page = $query_vars['day'];
 445      }
 446      // Bug found in #11694 - 'page' was returning '/4'.
 447      $maybe_page = (int) trim( $maybe_page, '/' );
 448  
 449      $post_page_count = substr_count( $post->post_content, '<!--nextpage-->' ) + 1;
 450  
 451      // If the post doesn't have multiple pages, but a 'page' candidate is found, resolve to the date archive.
 452      if ( 1 === $post_page_count && $maybe_page ) {
 453          return $query_vars;
 454      }
 455  
 456      // If the post has multiple pages and the 'page' number isn't valid, resolve to the date archive.
 457      if ( $post_page_count > 1 && $maybe_page > $post_page_count ) {
 458          return $query_vars;
 459      }
 460  
 461      // If we've gotten to this point, we have a slug/date clash. First, adjust for nextpage.
 462      if ( '' !== $maybe_page ) {
 463          $query_vars['page'] = (int) $maybe_page;
 464      }
 465  
 466      // Next, unset autodetected date-related query vars.
 467      unset( $query_vars['year'] );
 468      unset( $query_vars['monthnum'] );
 469      unset( $query_vars['day'] );
 470  
 471      // Then, set the identified post.
 472      $query_vars['name'] = $post->post_name;
 473  
 474      // Finally, return the modified query vars.
 475      return $query_vars;
 476  }
 477  
 478  /**
 479   * Examines a URL and try to determine the post ID it represents.
 480   *
 481   * Checks are supposedly from the hosted site blog.
 482   *
 483   * @since 1.0.0
 484   *
 485   * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 486   * @global WP         $wp         Current WordPress environment instance.
 487   *
 488   * @param string $url Permalink to check.
 489   * @return int Post ID, or 0 on failure.
 490   */
 491  function url_to_postid( $url ) {
 492      global $wp_rewrite;
 493  
 494      /**
 495       * Filters the URL to derive the post ID from.
 496       *
 497       * @since 2.2.0
 498       *
 499       * @param string $url The URL to derive the post ID from.
 500       */
 501      $url = apply_filters( 'url_to_postid', $url );
 502  
 503      $url_host = parse_url( $url, PHP_URL_HOST );
 504  
 505      if ( is_string( $url_host ) ) {
 506          $url_host = str_replace( 'www.', '', $url_host );
 507      } else {
 508          $url_host = '';
 509      }
 510  
 511      $home_url_host = parse_url( home_url(), PHP_URL_HOST );
 512  
 513      if ( is_string( $home_url_host ) ) {
 514          $home_url_host = str_replace( 'www.', '', $home_url_host );
 515      } else {
 516          $home_url_host = '';
 517      }
 518  
 519      // Bail early if the URL does not belong to this site.
 520      if ( $url_host && $url_host !== $home_url_host ) {
 521          return 0;
 522      }
 523  
 524      // First, check to see if there is a 'p=N' or 'page_id=N' to match against.
 525      if ( preg_match( '#[?&](p|page_id|attachment_id)=(\d+)#', $url, $values ) ) {
 526          $id = absint( $values[2] );
 527          if ( $id ) {
 528              return $id;
 529          }
 530      }
 531  
 532      // Get rid of the #anchor.
 533      $url_split = explode( '#', $url );
 534      $url       = $url_split[0];
 535  
 536      // Get rid of URL ?query=string.
 537      $url_split = explode( '?', $url );
 538      $url       = $url_split[0];
 539  
 540      // Set the correct URL scheme.
 541      $scheme = parse_url( home_url(), PHP_URL_SCHEME );
 542      $url    = set_url_scheme( $url, $scheme );
 543  
 544      // Add 'www.' if it is absent and should be there.
 545      if ( false !== strpos( home_url(), '://www.' ) && false === strpos( $url, '://www.' ) ) {
 546          $url = str_replace( '://', '://www.', $url );
 547      }
 548  
 549      // Strip 'www.' if it is present and shouldn't be.
 550      if ( false === strpos( home_url(), '://www.' ) ) {
 551          $url = str_replace( '://www.', '://', $url );
 552      }
 553  
 554      if ( trim( $url, '/' ) === home_url() && 'page' === get_option( 'show_on_front' ) ) {
 555          $page_on_front = get_option( 'page_on_front' );
 556  
 557          if ( $page_on_front && get_post( $page_on_front ) instanceof WP_Post ) {
 558              return (int) $page_on_front;
 559          }
 560      }
 561  
 562      // Check to see if we are using rewrite rules.
 563      $rewrite = $wp_rewrite->wp_rewrite_rules();
 564  
 565      // Not using rewrite rules, and 'p=N' and 'page_id=N' methods failed, so we're out of options.
 566      if ( empty( $rewrite ) ) {
 567          return 0;
 568      }
 569  
 570      // Strip 'index.php/' if we're not using path info permalinks.
 571      if ( ! $wp_rewrite->using_index_permalinks() ) {
 572          $url = str_replace( $wp_rewrite->index . '/', '', $url );
 573      }
 574  
 575      if ( false !== strpos( trailingslashit( $url ), home_url( '/' ) ) ) {
 576          // Chop off http://domain.com/[path].
 577          $url = str_replace( home_url(), '', $url );
 578      } else {
 579          // Chop off /path/to/blog.
 580          $home_path = parse_url( home_url( '/' ) );
 581          $home_path = isset( $home_path['path'] ) ? $home_path['path'] : '';
 582          $url       = preg_replace( sprintf( '#^%s#', preg_quote( $home_path ) ), '', trailingslashit( $url ) );
 583      }
 584  
 585      // Trim leading and lagging slashes.
 586      $url = trim( $url, '/' );
 587  
 588      $request              = $url;
 589      $post_type_query_vars = array();
 590  
 591      foreach ( get_post_types( array(), 'objects' ) as $post_type => $t ) {
 592          if ( ! empty( $t->query_var ) ) {
 593              $post_type_query_vars[ $t->query_var ] = $post_type;
 594          }
 595      }
 596  
 597      // Look for matches.
 598      $request_match = $request;
 599      foreach ( (array) $rewrite as $match => $query ) {
 600  
 601          // If the requesting file is the anchor of the match,
 602          // prepend it to the path info.
 603          if ( ! empty( $url ) && ( $url != $request ) && ( strpos( $match, $url ) === 0 ) ) {
 604              $request_match = $url . '/' . $request;
 605          }
 606  
 607          if ( preg_match( "#^$match#", $request_match, $matches ) ) {
 608  
 609              if ( $wp_rewrite->use_verbose_page_rules && preg_match( '/pagename=\$matches\[([0-9]+)\]/', $query, $varmatch ) ) {
 610                  // This is a verbose page match, let's check to be sure about it.
 611                  $page = get_page_by_path( $matches[ $varmatch[1] ] );
 612                  if ( ! $page ) {
 613                      continue;
 614                  }
 615  
 616                  $post_status_obj = get_post_status_object( $page->post_status );
 617                  if ( ! $post_status_obj->public && ! $post_status_obj->protected
 618                      && ! $post_status_obj->private && $post_status_obj->exclude_from_search ) {
 619                      continue;
 620                  }
 621              }
 622  
 623              // Got a match.
 624              // Trim the query of everything up to the '?'.
 625              $query = preg_replace( '!^.+\?!', '', $query );
 626  
 627              // Substitute the substring matches into the query.
 628              $query = addslashes( WP_MatchesMapRegex::apply( $query, $matches ) );
 629  
 630              // Filter out non-public query vars.
 631              global $wp;
 632              parse_str( $query, $query_vars );
 633              $query = array();
 634              foreach ( (array) $query_vars as $key => $value ) {
 635                  if ( in_array( (string) $key, $wp->public_query_vars, true ) ) {
 636                      $query[ $key ] = $value;
 637                      if ( isset( $post_type_query_vars[ $key ] ) ) {
 638                          $query['post_type'] = $post_type_query_vars[ $key ];
 639                          $query['name']      = $value;
 640                      }
 641                  }
 642              }
 643  
 644              // Resolve conflicts between posts with numeric slugs and date archive queries.
 645              $query = wp_resolve_numeric_slug_conflicts( $query );
 646  
 647              // Do the query.
 648              $query = new WP_Query( $query );
 649              if ( ! empty( $query->posts ) && $query->is_singular ) {
 650                  return $query->post->ID;
 651              } else {
 652                  return 0;
 653              }
 654          }
 655      }
 656      return 0;
 657  }


Generated : Sat Mar 25 08:20:01 2023 Cross-referenced by PHPXref