Automattic\WP\Cron_Control\Lock::get_key PHP Метод

    private static function get_key($lock, $type = 'lock')
    {
        switch ($type) {
            case 'lock':
                return "a8ccc_lock_{$lock}";
                break;
            case 'timestamp':
                return "a8ccc_lock_ts_{$lock}";
                break;
        }
        return false;
    }