PHP wp_cache_get函数代码示例

 static function get_data_by($field, $value)
 {
     if ('id' == $field) {
         if (!is_numeric($value)) {
             return false;
         }
         $value = intval($value);
         if ($value < 1) {
             return false;
         }
     } else {
         $value = trim($value);
     }
     if (!$value) {
         return false;
     }
     switch ($field) {
         case 'id':
             $custom_field_id = $value;
             $db_field = 'id';
             break;
         default:
             return false;
     }
     if (false !== $custom_field_id) {
         if ($custom_field = wp_cache_get($custom_field_id, 'yop_poll_custom_field')) {
             return $custom_field;
         }
     }
     if (!($custom_field = $GLOBALS['wpdb']->get_row($GLOBALS['wpdb']->prepare("SELECT\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t*\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t FROM\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t{$GLOBALS['wpdb']->yop_poll_custom_fields}\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t WHERE\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t{$db_field} = %s", $value)))) {
         return false;
     }
     wp_cache_add($custom_field->ID, $custom_field, 'yop_poll_custom_field');
     return $custom_field;
 }

function wpjam_topic_get_weixin_user($openid = '')
{
    if ($openid == '') {
        if (!wpjam_topic_get_openid()) {
            return false;
        }
        $current_user_id = get_current_user_id();
        $wpjam_weixin_user = get_transient('wpjam_weixin_user_' . $current_user_id);
        if ($wpjam_weixin_user === false) {
            $wpjam_weixin_user = wpjam_topic_remote_request('http://jam.wpweixin.com/api/get_user.json');
            if (is_wp_error($wpjam_weixin_user)) {
                return $wpjam_weixin_user;
            }
            set_transient('wpjam_weixin_user_' . $current_user_id, $wpjam_weixin_user, DAY_IN_SECONDS * 15);
            // 15天检查一次
        }
    } else {
        $wpjam_weixin_user = wp_cache_get($openid, 'wpjam_weixin_user');
        // if($wpjam_weixin_user === false){
        $wpjam_weixin_user = wpjam_topic_remote_request('http://jam.wpweixin.com/api/get_user.json?openid=' . $openid);
        // 	if(is_wp_error($wpjam_weixin_user)){
        // 		return $wpjam_weixin_user;
        // 	}
        // 	wp_cache_set($openid, $wpjam_weixin_user, 'wpjam_weixin_user', HOUR_IN_SECONDS);
        // }
    }
    return $wpjam_weixin_user;
}

/**
 * To retrive AnsPress option 		
 * @param  string $key   Name of option to retrive,
 *                       Keep it blank to get all options of AnsPress
 * @param  string $value Enter value to update existing option
 * @return string         
 * @since 0.1
 */
function ap_opt($key = false, $value = null)
{
    $settings = wp_cache_get('ap_opt', 'options');
    if ($settings === false) {
        $settings = get_option('anspress_opt');
        if (!$settings) {
            $settings = array();
        }
        $settings = $settings + ap_default_options();
        wp_cache_set('ap_opt', $settings, 'options');
    }
    if (!is_null($value)) {
        $settings[$key] = $value;
        update_option('anspress_opt', $settings);
        // clear cache if option updated
        wp_cache_delete('ap_opt', 'options');
        return;
    }
    if (false === $key) {
        return $settings;
    }
    if (isset($settings[$key])) {
        return $settings[$key];
    } else {
        return NULL;
    }
    return false;
}

/**
 * Retrieves and returns a meta value from the database
 *
 * @param string      $object_type The object type.
 * @param int         $object_id   ID of the object metadata is for.
 * @param string|null $meta_key    Optional. Metadata key. Default null.
 *
 * @return mixed|false Metadata or false.
 */
function gp_get_meta($object_type, $object_id, $meta_key = null)
{
    global $wpdb;
    $meta_key = gp_sanitize_meta_key($meta_key);
    if (!$object_type) {
        return false;
    }
    if (!is_numeric($object_id) || empty($object_id)) {
        return false;
    }
    $object_id = (int) $object_id;
    $object_meta = wp_cache_get($object_id, $object_type);
    if (false === $object_meta) {
        $db_object_meta = $wpdb->get_results($wpdb->prepare("SELECT `meta_key`, `meta_value` FROM `{$wpdb->gp_meta}` WHERE `object_type` = %s AND `object_id` = %d", $object_type, $object_id));
        $object_meta = array();
        foreach ($db_object_meta as $meta) {
            $object_meta[$meta->meta_key] = maybe_unserialize($meta->meta_value);
        }
        wp_cache_add($object_id, $object_meta, $object_type);
    }
    if ($meta_key && isset($object_meta[$meta_key])) {
        return $object_meta[$meta_key];
    } elseif (!$meta_key) {
        return $object_meta;
    } else {
        return false;
    }
}

 /**
  * Test behavior when using the term meta fields.
  */
 public function test_save_term_meta()
 {
     $term_option = new Fieldmanager_Textfield(array('name' => 'term_option'));
     // check normal save and fetch behavior
     $text = rand_str();
     $this->save_values($term_option, $this->term, $text);
     $data = fm_get_term_meta($this->term->term_id, $this->term->taxonomy, 'term_option', true);
     $this->assertEquals($text, $data);
     $data = fm_get_term_meta($this->term->term_id, $this->term->taxonomy, 'term_option', false);
     $this->assertEquals(array($text), $data);
     // check update and fetch
     $text_updated = rand_str();
     $this->save_values($term_option, $this->term, $text_updated);
     $data = fm_get_term_meta($this->term->term_id, $this->term->taxonomy, 'term_option', true);
     $this->assertEquals($text_updated, $data);
     $this->assertInternalType('int', Fieldmanager_Util_Term_Meta()->get_term_meta_post_id($this->term->term_id, $this->term->taxonomy));
     $cache_key = Fieldmanager_Util_Term_Meta()->get_term_meta_post_id_cache_key($this->term->term_id, $this->term->taxonomy);
     $this->assertNotEquals(false, wp_cache_get($cache_key));
     fm_delete_term_meta($this->term->term_id, $this->term->taxonomy, 'term_option');
     // post id not cached right after removal of only meta value, which results in deletion of the post
     $this->assertEquals(false, wp_cache_get($cache_key));
     // checking that the post id is reported as false when it doesn't exist now
     $this->assertEquals(false, Fieldmanager_Util_Term_Meta()->get_term_meta_post_id($this->term->term_id, $this->term->taxonomy));
     // checking that the post id is cached now to return false since it doesn't exist
     $this->assertNotEquals(false, wp_cache_get($cache_key));
 }

function get_field($field_name, $post_id = false)
{
    global $post, $acf;
    if (!$post_id) {
        $post_id = $post->ID;
    } elseif ($post_id == "options") {
        $post_id = 999999999;
    }
    // return cache
    $cache = wp_cache_get('acf_get_field_' . $post_id . '_' . $field_name);
    if ($cache) {
        return $cache;
    }
    // default
    $value = "";
    // get value
    $field_key = get_post_meta($post_id, '_' . $field_name, true);
    if ($field_key != "") {
        // we can load the field properly!
        $field = $acf->get_acf_field($field_key);
        $value = $acf->get_value_for_api($post_id, $field);
    } else {
        // just load the text version
        $value = get_post_meta($post_id, $field_name, true);
    }
    // no value?
    if ($value == "") {
        $value = false;
    }
    // update cache
    wp_cache_set('acf_get_field_' . $post_id . '_' . $field_name, $value);
    return $value;
}

 function update($new_instance, $old_instance)
 {
     $instance = $old_instance;
     $instance['title'] = strip_tags($new_instance['title']);
     $instance['number'] = (int) $new_instance['number'];
     $instance['minnum'] = (int) $new_instance['minnum'];
     $instance['maxnum'] = (int) $new_instance['maxnum'];
     $instance['unit'] = $new_instance['unit'];
     $instance['smallest'] = $new_instance['smallest'];
     $instance['largest'] = $new_instance['largest'];
     $instance['mincolor'] = strip_tags($new_instance['mincolor']);
     $instance['maxcolor'] = strip_tags($new_instance['maxcolor']);
     $instance['format'] = $new_instance['format'];
     $instance['orderby'] = $new_instance['orderby'];
     $instance['order'] = $new_instance['order'];
     $instance['showcount'] = $new_instance['showcount'];
     $instance['showcats'] = $new_instance['showcats'];
     $instance['showtags'] = $new_instance['showtags'];
     $instance['empty'] = $new_instance['empty'];
     $this->flush_widget_cache();
     $alloptions = wp_cache_get('alloptions', 'options');
     if (isset($alloptions['widget_tw'])) {
         delete_option('widget_tw');
     }
     return $instance;
 }

function get_galleries($ids = array())
{
    $galleries = wp_cache_get('galleries', THEME_NAME);
    if (!$galleries) {
        $options = array('post_type' => 'property_gallery', 'post_status' => 'publish', 'post__in' => $ids, 'posts_per_page' => PHP_INT_MAX);
        $galleries = get_posts($options);
        foreach ($galleries as &$gallery) {
            $_content = $gallery->post_content;
            $gallery_images_ids = array();
            $featured_image = null;
            preg_match('/\\[gallery ids="(.*?)"\\]/', $_content, $matches);
            $gallery->images = array();
            $gallery->featured_image = null;
            if (!empty($matches[1])) {
                $gallery_images_ids = explode(',', $matches[1]);
                $featured_image = wp_get_attachment_image_src($gallery_images_ids[0], 'properties-gallery-normal');
                $_gallery = array();
                foreach ($gallery_images_ids as $id) {
                    $image = wp_get_attachment_image_src($id, 'properties-gallery-normal');
                    $_gallery[] = $image;
                }
                $gallery->images = $_gallery;
                $gallery->featured_image = $featured_image;
            }
        }
        // Save galleries if there is a permanent cache installed
        wp_cache_set('galleries', $galleries, THEME_NAME);
    }
    return $galleries;
}

 function get_terms_in_found_set()
 {
     if (isset($this->terms_in_found_set)) {
         return $this->terms_in_found_set;
     }
     $matching_post_ids = $this->facets->get_matching_post_ids();
     // if there aren't any matching post ids, we don't need to query
     if (!$matching_post_ids) {
         return array();
     }
     //end if
     $cache_key = md5(serialize($matching_post_ids));
     if (!($this->terms_in_found_set = wp_cache_get($cache_key, 'scrib-facet-post-author'))) {
         global $wpdb;
         $terms = $wpdb->get_results('SELECT post_author , COUNT(*) AS hits FROM ' . $wpdb->posts . ' WHERE ID IN (' . implode(',', $matching_post_ids) . ') GROUP BY post_author LIMIT 1000 /* generated in Facet_Post_Author::get_terms_in_found_set() */');
         $this->terms_in_found_set = array();
         foreach ($terms as $term) {
             $userdata = get_userdata($term->post_author);
             if (empty($userdata->display_name)) {
                 continue;
             }
             $this->terms_in_found_set[] = (object) array('facet' => $this->name, 'slug' => $userdata->user_nicename, 'name' => $userdata->display_name, 'description' => $userdata->user_description, 'term_id' => $term->post_author, 'count' => $term->hits);
         }
         wp_cache_set($cache_key, $this->terms_in_found_set, 'scrib-facet-post-author', $this->ttl);
     }
     return $this->terms_in_found_set;
 }

 public function get_locale($code)
 {
     global $wpdb;
     $all_locales = null;
     if (is_null($code)) {
         return false;
     }
     $found = false;
     $locale = wp_cache_get('get_locale' . $code, '', false, $found);
     if ($found) {
         return $locale;
     }
     $all_locales_data = $wpdb->get_results("SELECT code, locale FROM {$wpdb->prefix}icl_locale_map");
     foreach ($all_locales_data as $locales_data) {
         $all_locales[$locales_data->code] = $locales_data->locale;
     }
     $locale = isset($all_locales[$code]) ? $all_locales[$code] : false;
     if ($locale === false) {
         $this_locale_data = $wpdb->get_row($wpdb->prepare("SELECT code, default_locale FROM {$wpdb->prefix}icl_languages WHERE code = %s", $code));
         if ($this_locale_data) {
             $locale = $this_locale_data->default_locale;
         }
     }
     wp_cache_set('get_locale' . $code, $locale);
     return $locale;
 }

 function GalleryGallery($data = array())
 {
     global $wpdb;
     $this->plugin_name = basename(dirname(dirname(__FILE__)));
     $this->table = $wpdb->prefix . strtolower($this->pre) . "_" . $this->controller;
     if (is_admin()) {
         $this->check_table($this->model);
     }
     if (!empty($data)) {
         foreach ($data as $dkey => $dval) {
             $this->{$dkey} = stripslashes_deep($dval);
             switch ($dkey) {
                 case 'id':
                     $slidescountquery = "SELECT COUNT(`id`) FROM `" . $wpdb->prefix . strtolower($this->pre) . "_galleriesslides` WHERE `gallery_id` = '" . $dval . "'";
                     $query_hash = md5($slidescountquery);
                     if ($oc_slidescount = wp_cache_get($query_hash, 'slideshowgallery')) {
                         $this->slidescount = $oc_slidescount;
                     } else {
                         $this->slidescount = $wpdb->get_var($slidescountquery);
                         wp_cache_set($query_hash, $this->slidescount, 'slideshowgallery', 0);
                     }
                     break;
             }
         }
     }
     return true;
 }

 /**
  * Mostly the same as `get_metadata()` makes sure any postthumbnail function gets checked at
  * the deepest level possible.
  *
  * @see /wp-includes/meta.php get_metadata()
  *
  * @param null $null
  * @param int $object_id ID of the object metadata is for
  * @param string $meta_key Optional. Metadata key. If not specified, retrieve all metadata for
  *   the specified object.
  * @param bool $single Optional, default is false. If true, return only the first value of the
  *   specified meta_key. This parameter has no effect if meta_key is not specified.
  * @return string|array Single metadata value, or array of values
  */
 function set_dfi_meta_key($null = null, $object_id, $meta_key, $single)
 {
     // only affect thumbnails on the frontend, do allow ajax calls
     if (is_admin() && (!defined('DOING_AJAX') || !DOING_AJAX) || '_thumbnail_id' != $meta_key) {
         return $null;
     }
     $meta_type = 'post';
     $meta_cache = wp_cache_get($object_id, $meta_type . '_meta');
     if (!$meta_cache) {
         $meta_cache = update_meta_cache($meta_type, array($object_id));
         $meta_cache = $meta_cache[$object_id];
     }
     if (!$meta_key) {
         return $meta_cache;
     }
     if (isset($meta_cache[$meta_key])) {
         if ($single) {
             return maybe_unserialize($meta_cache[$meta_key][0]);
         } else {
             return array_map('maybe_unserialize', $meta_cache[$meta_key]);
         }
     }
     if ($single) {
         // allow to set an other ID see the readme.txt for details
         return apply_filters('dfi_thumbnail_id', get_option('dfi_image_id'), $object_id);
     } else {
         return array();
     }
 }

 /**
  * Return monthly
  *
  * @link
  *       https://core.trac.wordpress.org/browser/tags/4.2.2/src/wp-includes/general-template.php#L1335
  * @return string
  */
 public static function getMonthly($limit = self::LIMIT)
 {
     global $wpdb, $wp_locale;
     $last_changed = wp_cache_get('last_changed', 'posts');
     if (!$last_changed) {
         $last_changed = microtime();
         wp_cache_set('last_changed', $last_changed, 'posts');
     }
     $query = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, count(ID) as total\n\t\t\tFROM {$wpdb->posts}\n\t\t\tWHERE post_type = 'post' AND post_status = 'publish'\n\t\t\tGROUP BY YEAR(post_date), MONTH(post_date)\n\t\t\tORDER BY post_date DESC ";
     if ($limit) {
         $query .= " LIMIT {$limit}";
     }
     $key = md5($query);
     $key = "wp_get_archives:{$key}:{$last_changed}";
     if (!($results = wp_cache_get($key, 'posts'))) {
         $results = $wpdb->get_results($query);
         wp_cache_set($key, $results, 'posts');
     }
     $archives = [];
     foreach ($results as $result) {
         $url = get_month_link($result->year, $result->month);
         /* translators: 1: month name, 2: 4-digit year */
         $text = sprintf(__('%1$s %2$d'), $wp_locale->get_month($result->month), $result->year);
         $archives[] = new Archive($text, $url, $result->total);
     }
     return $archives;
 }

 /**
  * @group bp_messages_delete_meta
  * @group messages_delete_thread
  */
 public function test_bp_messages_delete_metadata_cache_on_thread_delete()
 {
     $this->old_current_user = get_current_user_id();
     $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' => 'Oy'));
     // create a reply
     $this->factory->message->create(array('thread_id' => $t1, 'sender_id' => $u2, 'recipients' => array($u1), 'content' => 'Yo'));
     // add message meta
     list($m1, $m2) = $this->get_message_ids($t1);
     bp_messages_update_meta($m1, 'yolo', 'gah');
     bp_messages_update_meta($m2, 'yolo', 'bah');
     // prime message meta cache
     bp_messages_get_meta($m1, 'yolo');
     bp_messages_get_meta($m2, 'yolo');
     // delete thread
     // to outright delete a thread, both recipients must delete it
     $this->set_current_user($u1);
     messages_delete_thread($t1);
     $this->set_current_user($u2);
     messages_delete_thread($t1);
     // assert empty meta cache
     $this->assertEmpty(wp_cache_get($m1, 'message_meta'));
     $this->assertEmpty(wp_cache_get($m2, 'message_meta'));
     // cleanup
     $this->set_current_user($this->old_current_user);
 }

function cached_result($cache_key, $cache_group, $fn = null)
{
    if (is_null($fn)) {
        $fn = $cache_group;
        $cache_group = '';
        $namespaced = [];
    }
    if ($cache_group) {
        $namespaced = wp_cache_get($cache_group, 'cache_namespaces');
        if ($namespaced === false) {
            wp_cache_set($cache_group, $namespaced = [], CACHE_NAMESPACES);
        }
    }
    if (!is_preview() && in_array($cache_key, $namespaced) && ($result = wp_cache_get($cache_key, $cache_group))) {
        return $result;
    }
    $result = call_user_func($fn);
    if (!is_preview()) {
        wp_cache_set($cache_key, $result, $cache_group);
        if ($cache_group) {
            wp_cache_set($cache_group, $namespaced + [$cache_key], CACHE_NAMESPACES);
        }
    }
    return $result;
}