Falcon_Connector_WordPress::get_thread_subscribers PHP Метод

    protected function get_thread_subscribers($comment)
    {
        $sibling_comments = get_comments(array('post_id' => $comment->comment_post_ID, 'comment__not_in' => $comment->comment_ID, 'type' => 'comment'));
        if (empty($sibling_comments)) {
            return array();
        }
        $users = array();
        $indexed = array();
        foreach ($sibling_comments as $sibling) {
            // Re-index by ID for later usage
            $indexed[$sibling->comment_ID] = $sibling;
            // Grab just comments with author IDs
            if (empty($sibling->user_id)) {
                continue;
            }
            // Skip duplicate parsing
            if (isset($users[$sibling->user_id])) {
                continue;
            }
            $pref = get_user_meta($sibling->user_id, $this->key_for_setting('notifications.comment'), true);
            $users[$sibling->user_id] = $pref === 'participant';
        }
        // Now, find users in the thread
        $sibling = $comment;
        while (!empty($sibling->comment_parent)) {
            $parent_id = $sibling->comment_parent;
            if (!isset($indexed[$parent_id])) {
                break;
            }
            $sibling = $indexed[$parent_id];
            if (!isset($sibling->user_id)) {
                continue;
            }
            $pref = get_user_meta($sibling->user_id, $this->key_for_setting('notifications.comment'), true);
            if ($pref) {
                $users[$sibling->user_id] = true;
            }
        }
        $subscribers = array();
        foreach ($users as $user => $subscribed) {
            if (!$subscribed) {
                continue;
            }
            $subscribers[] = get_userdata($user);
        }
        return $subscribers;
    }