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

   1  <?php
   2  /**
   3   * Sitemaps: Public functions
   4   *
   5   * This file contains a variety of public functions developers can use to interact with
   6   * the XML Sitemaps API.
   7   *
   8   * @package WordPress
   9   * @subpackage Sitemaps
  10   * @since 5.5.0
  11   */
  12  
  13  /**
  14   * Retrieves the current Sitemaps server instance.
  15   *
  16   * @since 5.5.0
  17   *
  18   * @global WP_Sitemaps $wp_sitemaps Global Core Sitemaps instance.
  19   *
  20   * @return WP_Sitemaps Sitemaps instance.
  21   */
  22  function wp_sitemaps_get_server() {
  23      global $wp_sitemaps;
  24  
  25      // If there isn't a global instance, set and bootstrap the sitemaps system.
  26      if ( empty( $wp_sitemaps ) ) {
  27          $wp_sitemaps = new WP_Sitemaps();
  28          $wp_sitemaps->init();
  29  
  30          /**
  31           * Fires when initializing the Sitemaps object.
  32           *
  33           * Additional sitemaps should be registered on this hook.
  34           *
  35           * @since 5.5.0
  36           *
  37           * @param WP_Sitemaps $wp_sitemaps Sitemaps object.
  38           */
  39          do_action( 'wp_sitemaps_init', $wp_sitemaps );
  40      }
  41  
  42      return $wp_sitemaps;
  43  }
  44  
  45  /**
  46   * Gets an array of sitemap providers.
  47   *
  48   * @since 5.5.0
  49   *
  50   * @return WP_Sitemaps_Provider[] Array of sitemap providers.
  51   */
  52  function wp_get_sitemap_providers() {
  53      $sitemaps = wp_sitemaps_get_server();
  54  
  55      return $sitemaps->registry->get_providers();
  56  }
  57  
  58  /**
  59   * Registers a new sitemap provider.
  60   *
  61   * @since 5.5.0
  62   *
  63   * @param string               $name     Unique name for the sitemap provider.
  64   * @param WP_Sitemaps_Provider $provider The `Sitemaps_Provider` instance implementing the sitemap.
  65   * @return bool Whether the sitemap was added.
  66   */
  67  function wp_register_sitemap_provider( $name, WP_Sitemaps_Provider $provider ) {
  68      $sitemaps = wp_sitemaps_get_server();
  69  
  70      return $sitemaps->registry->add_provider( $name, $provider );
  71  }
  72  
  73  /**
  74   * Gets the maximum number of URLs for a sitemap.
  75   *
  76   * @since 5.5.0
  77   *
  78   * @param string $object_type Object type for sitemap to be filtered (e.g. 'post', 'term', 'user').
  79   * @return int The maximum number of URLs.
  80   */
  81  function wp_sitemaps_get_max_urls( $object_type ) {
  82      /**
  83       * Filters the maximum number of URLs displayed on a sitemap.
  84       *
  85       * @since 5.5.0
  86       *
  87       * @param int    $max_urls    The maximum number of URLs included in a sitemap. Default 2000.
  88       * @param string $object_type Object type for sitemap to be filtered (e.g. 'post', 'term', 'user').
  89       */
  90      return apply_filters( 'wp_sitemaps_max_urls', 2000, $object_type );
  91  }
  92  
  93  /**
  94   * Retrieves the full URL for a sitemap.
  95   *
  96   * @since 5.5.1
  97   *
  98   * @param string $name         The sitemap name.
  99   * @param string $subtype_name The sitemap subtype name. Default empty string.
 100   * @param int    $page         The page of the sitemap. Default 1.
 101   * @return string|false The sitemap URL or false if the sitemap doesn't exist.
 102   */
 103  function get_sitemap_url( $name, $subtype_name = '', $page = 1 ) {
 104      $sitemaps = wp_sitemaps_get_server();
 105  
 106      if ( ! $sitemaps ) {
 107          return false;
 108      }
 109  
 110      if ( 'index' === $name ) {
 111          return $sitemaps->index->get_index_url();
 112      }
 113  
 114      $provider = $sitemaps->registry->get_provider( $name );
 115      if ( ! $provider ) {
 116          return false;
 117      }
 118  
 119      if ( $subtype_name && ! in_array( $subtype_name, array_keys( $provider->get_object_subtypes() ), true ) ) {
 120          return false;
 121      }
 122  
 123      $page = absint( $page );
 124      if ( 0 >= $page ) {
 125          $page = 1;
 126      }
 127  
 128      return $provider->get_sitemap_url( $subtype_name, $page );
 129  }


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