PHP wp_cache_delete函数代码示例

 /**
  * Hooked into transition_post_status. Will initiate search engine pings
  * if the post is being published, is a post type that a sitemap is built for
  * and is a post that is included in sitemaps.
  *
  * @param string   $new_status New post status.
  * @param string   $old_status Old post status.
  * @param \WP_Post $post       Post object.
  */
 function status_transition($new_status, $old_status, $post)
 {
     if ($new_status != 'publish') {
         return;
     }
     wp_cache_delete('lastpostmodified:gmt:' . $post->post_type, 'timeinfo');
     // #17455.
     $options = WPSEO_Options::get_options(array('wpseo_xml', 'wpseo_titles'));
     if (isset($options['post_types-' . $post->post_type . '-not_in_sitemap']) && $options['post_types-' . $post->post_type . '-not_in_sitemap'] === true || $post->post_type === 'nav_menu_item') {
         return;
     }
     if (WP_CACHE) {
         wp_schedule_single_event(time() + 300, 'wpseo_hit_sitemap_index');
     }
     /**
      * Filter: 'wpseo_allow_xml_sitemap_ping' - Check if pinging is not allowed (allowed by default)
      *
      * @api boolean $allow_ping The boolean that is set to true by default.
      */
     if (apply_filters('wpseo_allow_xml_sitemap_ping', true) === false) {
         return;
     }
     // Allow the pinging to happen slightly after the hit sitemap index so the sitemap is fully regenerated when the ping happens.
     $excluded_posts = explode(',', $options['excluded-posts']);
     if (!in_array($post->ID, $excluded_posts)) {
         if (defined('YOAST_SEO_PING_IMMEDIATELY') && YOAST_SEO_PING_IMMEDIATELY) {
             wpseo_ping_search_engines();
         } else {
             wp_schedule_single_event(time() + 300, 'wpseo_ping_search_engines');
         }
     }
 }

 public function upgrade($plugin, $url)
 {
     $this->init();
     $this->upgrade_strings();
     add_filter('upgrader_pre_install', array(&$this, 'deactivate_plugin_before_upgrade'), 10, 2);
     add_filter('upgrader_clear_destination', array(&$this, 'delete_old_plugin'), 10, 4);
     // inject our certificate, in case we are on machine w/o CA
     add_action('http_api_curl', array(Ai1ec_Http_Utility::instance(), 'curl_inject_certificate'));
     $this->run(array('package' => $url, 'destination' => WP_PLUGIN_DIR, 'clear_destination' => true, 'clear_working' => true, 'hook_extra' => array('plugin' => $plugin)));
     // Cleanup our hooks, in case something else does an upgrade on
     // this connection.
     remove_filter('upgrader_pre_install', array(&$this, 'deactivate_plugin_before_upgrade'));
     remove_filter('upgrader_clear_destination', array(&$this, 'delete_old_plugin'));
     if (!$this->result || is_wp_error($this->result)) {
         return $this->result;
     }
     // Force refresh of plugin update information
     delete_site_transient('update_plugins');
     wp_cache_delete('plugins', 'plugins');
     // activate the plugin
     activate_plugin($plugin);
     echo '<p>Plugin activated.</p>';
     echo '<a href="' . admin_url('index.php') . '">Continue Here</a>';
     return true;
 }

function delete_metadata($meta_type, $object_id, $meta_key, $meta_value = '')
{
    if (!$meta_type || !$meta_key) {
        return false;
    }
    if (!($table = _get_meta_table($meta_type))) {
        return false;
    }
    global $wpdb;
    $column = esc_sql($meta_type . '_id');
    // expected_slashed ($meta_key)
    $meta_key = stripslashes($meta_key);
    $meta_value = maybe_serialize(stripslashes_deep($meta_value));
    $query = $wpdb->prepare("DELETE FROM {$table} WHERE meta_key = %s", $meta_key);
    if ($meta_value) {
        $query .= $wpdb->prepare("AND meta_value = %s", $meta_value);
    }
    $count = $wpdb->query($query);
    if (!$count) {
        return false;
    }
    wp_cache_delete($object_id, $meta_type . '_meta');
    do_action("deleted_{$meta_type}_meta", $object_id, $meta_key, $meta_value);
    return true;
}

function wpurp_shortcode_generator_user_menu_authors()
{
    $menu_authors = array();
    $menu_author_ids = array();
    // Get all menus one by one
    $limit = 100;
    $offset = 0;
    while (true) {
        $args = array('post_type' => 'menu', 'post_status' => array('publish', 'private'), 'posts_per_page' => $limit, 'offset' => $offset);
        $query = new WP_Query($args);
        if (!$query->have_posts()) {
            break;
        }
        $posts = $query->posts;
        foreach ($posts as $post) {
            $id = $post->ID;
            $author = $post->post_author;
            if (!in_array($author, $menu_author_ids)) {
                $menu_author_ids[] = $author;
                $user = get_userdata($author);
                $name = $user ? $user->display_name : __('n/a', 'wp-ultimate-recipe');
                $menu_authors[] = array('value' => $author, 'label' => $name);
            }
            wp_cache_delete($id, 'posts');
            wp_cache_delete($id, 'post_meta');
        }
        $offset += $limit;
        wp_cache_flush();
    }
    return $menu_authors;
}

 /**
  * Update the embed code on an Embed
  *
  * @param  int $id
  * @param  string $html
  * @return Embed
  */
 public static function update($id, $html = '')
 {
     global $wpdb;
     $update = $wpdb->update("{$wpdb->base_prefix}protected_embeds", array('html' => $html), array('embed_id' => $id));
     wp_cache_delete($id, 'protected-embeds');
     return static::get($id);
 }

function xfac_user_deleteRecord($record)
{
    global $wpdb;
    $tblAuth = xfac_getTableAuth();
    wp_cache_delete($record->user_id, XFAC_CACHE_RECORDS_BY_USER_ID);
    return $wpdb->delete($tblAuth, array('id' => $record->id));
}

 /**
  * @ticket 38930
  */
 public function test_add_option_with_no_options_cache()
 {
     register_setting('test_group', 'test_default', array('default' => 'My Default :)'));
     wp_cache_delete('notoptions', 'options');
     $this->assertTrue(add_option('test_default', 'hello'));
     $this->assertEquals('hello', get_option('test_default'));
 }

function skattle_clear_page_caches()
{
    if ($_POST[post_type] == 'page') {
        $key = 'child-pages-' . $post->ID;
        wp_cache_delete($key, 'page');
    }
}

 function update($new_instance, $old_instance)
 {
     $instance = $old_instance;
     if (isset($new_instance['dologout']) && $new_instance['dologout'] == 1) {
         $instance['access_token'] = null;
         $instance['login'] = null;
         wp_cache_delete($this->id, $this->cache_key);
     }
     if (isset($new_instance['login'], $new_instance['pass']) && trim($new_instance['login']) != "" && trim($new_instance['pass']) != "") {
         wp_cache_delete($this->id, 'wpinstagram_cache');
         $auth = $this->instagram_login($new_instance['login'], $new_instance['pass']);
         $instance['access_token'] = $auth->access_token;
         $instance['login'] = $auth->user->username;
     }
     if ($new_instance['count'] != $old_instance['count'] || $new_instance['hashtag'] != $instance['hashtag']) {
         wp_cache_delete($this->id, $this->cache_key);
     }
     if (preg_match("/[a-zA-Z0-9_\\-]+/i", $new_instance['hashtag'])) {
         $instance['hashtag'] = $new_instance['hashtag'];
     } else {
         unset($instance['hashtag']);
     }
     $instance['title'] = strip_tags($new_instance['title']);
     $instance['count'] = strip_tags($new_instance['count']);
     $instance['count'] = intval($instance['count']) ? $instance['count'] : 9;
     return $instance;
 }

 /**
  * Clear cache objects for the user.
  * @param int $user_id
  */
 public static function clear_cache($user_id)
 {
     // be lazy, clear the entries so they are rebuilt when requested
     wp_cache_delete(self::CAPABILITIES . $user_id, self::CACHE_GROUP);
     wp_cache_delete(self::CAPABILITY_IDS . $user_id, self::CACHE_GROUP);
     wp_cache_delete(self::GROUP_IDS . $user_id, self::CACHE_GROUP);
 }

/**
 * Deletes meta data from the database
 *
 * @internal
 */
function wpsc_delete_meta($object_id = 0, $meta_key, $meta_value, $type, $global = false)
{
    global $wpdb;
    if (!is_numeric($object_id) || empty($object_id) && !$global) {
        return false;
    }
    $cache_object_id = $object_id = (int) $object_id;
    $object_type = $type;
    $meta_key = wpsc_sanitize_meta_key($meta_key);
    $meta_tuple = compact('object_type', 'object_id', 'meta_key', 'meta_value', 'type');
    $meta_tuple = apply_filters('wpsc_delete_meta', $meta_tuple);
    extract($meta_tuple, EXTR_OVERWRITE);
    $meta_value = maybe_serialize($meta_value);
    if (empty($meta_value)) {
        $meta_sql = $wpdb->prepare("SELECT `meta_id` FROM `" . WPSC_TABLE_META . "` WHERE `object_type` = %s AND `object_id` = %d AND `meta_key` = %s", $object_type, $object_id, $meta_key);
    } else {
        $meta_sql = $wpdb->prepare("SELECT `meta_id` FROM `" . WPSC_TABLE_META . "` WHERE `object_type` = %s AND `object_id` = %d AND `meta_key` = %s AND `meta_value` = %s", $object_type, $object_id, $meta_key, $meta_value);
    }
    if (!($meta_id = $wpdb->get_var($meta_sql))) {
        return false;
    }
    $wpdb->query($wpdb->prepare("DELETE FROM `" . WPSC_TABLE_META . "` WHERE `meta_id` = %d", $meta_id));
    wp_cache_delete($cache_object_id, $object_type);
    return true;
}

 /**
  * @group bp_messages_update_meta_cache
  */
 public function test_bp_messages_update_meta_cache()
 {
     $u1 = $this->factory->user->create();
     $u2 = $this->factory->user->create();
     // create the thread
     $t1 = $this->factory->message->create(array('sender_id' => $u1, 'recipients' => array($u2), 'subject' => 'This is a knive'));
     // create a reply
     $this->factory->message->create(array('thread_id' => $t1, 'sender_id' => $u2, 'recipients' => array($u1), 'content' => "That's a spoon"));
     // grab the message ids as individual variables
     list($m1, $m2) = $this->get_message_ids($t1);
     // add cache for each message
     bp_messages_update_meta($m1, 'utensil', 'knive');
     bp_messages_update_meta($m1, 'is_knive', 'yes');
     bp_messages_update_meta($m2, 'utensil', 'spoon');
     bp_messages_update_meta($m2, 'is_knive', 'no');
     bp_messages_update_meta($m2, 'is_spoon', 'yes');
     // prime cache
     bp_messages_get_meta($m1, 'utensil');
     // Ensure an empty cache for second message
     wp_cache_delete($m2, 'message_meta');
     // update message meta cache
     bp_messages_update_meta_cache(array($m1, $m2));
     $expected = array($m1 => array('utensil' => array('knive'), 'is_knive' => array('yes')), $m2 => array('utensil' => array('spoon'), 'is_knive' => array('no'), 'is_spoon' => array('yes')));
     $found = array($m1 => wp_cache_get($m1, 'message_meta'), $m2 => wp_cache_get($m2, 'message_meta'));
     $this->assertEquals($expected, $found);
 }

 function savePaywallSettings(TPSiteSettings $ss, TPPaySettings $pw)
 {
     $ss->addPaywall($pw);
     $this->saveSiteSettings($ss);
     wp_cache_delete("tinypass_" . $pw->getResourceId());
     update_option("tinypass_" . $pw->getResourceId(), $pw->toArray());
 }

 /**
  * Delete terms, taxonomies, and tax relationships.
  */
 private function _empty_taxonomies()
 {
     global $wpdb;
     // Empty taxonomies and terms
     $terms = $wpdb->get_results("SELECT term_id, taxonomy FROM {$wpdb->term_taxonomy}");
     $ids = array();
     $taxonomies = array();
     foreach ((array) $terms as $term) {
         $taxonomies[] = $term->taxonomy;
         $ids[] = $term->term_id;
         wp_cache_delete($term->term_id, $term->taxonomy);
     }
     $taxonomies = array_unique($taxonomies);
     $cleaned = array();
     foreach ($taxonomies as $taxonomy) {
         if (isset($cleaned[$taxonomy])) {
             continue;
         }
         $cleaned[$taxonomy] = true;
         wp_cache_delete('all_ids', $taxonomy);
         wp_cache_delete('get', $taxonomy);
         delete_option("{$taxonomy}_children");
     }
     $wpdb->query("TRUNCATE {$wpdb->terms}");
     $wpdb->query("TRUNCATE {$wpdb->term_taxonomy}");
     $wpdb->query("TRUNCATE {$wpdb->term_relationships}");
 }

 public static function set_widget($args)
 {
     $r = wp_parse_args($args, array('id_base' => '', 'sidebar_id' => '', 'settings' => array()));
     $id_base = $r['id_base'];
     $sidebar_id = $r['sidebar_id'];
     $settings = (array) $r['settings'];
     // Don't try to set a widget if it hasn't been registered
     if (!self::widget_exists($id_base)) {
         return new WP_Error('widget_does_not_exist', 'Widget does not exist');
     }
     global $wp_registered_sidebars;
     if (!isset($wp_registered_sidebars[$sidebar_id])) {
         return new WP_Error('sidebar_does_not_exist', 'Sidebar does not exist');
     }
     $sidebars = wp_get_sidebars_widgets();
     $sidebar = (array) $sidebars[$sidebar_id];
     // Multi-widgets can only be detected by looking at their settings
     $option_name = 'widget_' . $id_base;
     // Don't let it get pulled from the cache
     wp_cache_delete($option_name, 'options');
     $all_settings = get_option($option_name);
     if (is_array($all_settings)) {
         $skeys = array_keys($all_settings);
         // Find the highest numeric key
         rsort($skeys);
         foreach ($skeys as $k) {
             if (is_numeric($k)) {
                 $multi_number = $k + 1;
                 break;
             }
         }
         if (!isset($multi_number)) {
             $multi_number = 1;
         }
         $all_settings[$multi_number] = $settings;
         //$all_settings = array( $multi_number => $settings );
     } else {
         $multi_number = 1;
         $all_settings = array($multi_number => $settings);
     }
     $widget_id = $id_base . '-' . $multi_number;
     $sidebar[] = $widget_id;
     // Because of the way WP_Widget::update_callback() works, gotta fake the $_POST
     $_POST['widget-' . $id_base] = $all_settings;
     global $wp_registered_widget_updates, $wp_registered_widget_controls;
     foreach ((array) $wp_registered_widget_updates as $name => $control) {
         if ($name == $id_base) {
             if (!is_callable($control['callback'])) {
                 continue;
             }
             ob_start();
             call_user_func_array($control['callback'], $control['params']);
             ob_end_clean();
             break;
         }
     }
     $sidebars[$sidebar_id] = $sidebar;
     wp_set_sidebars_widgets($sidebars);
     update_option($option_name, $all_settings);
 }