// Создаем новый экземпляр класса PDO
        self::$_mHandler = new PDO(PDO_DSN, 
                                   DB_USERNAME, 
                                   DB_PASSWORD,
                                   array(PDO::ATTR_PERSISTENT => DB_PERSISTENCY,
                                         PDO::MYSQL_ATTR_INIT_COMMAND => "SET lc_time_names = '".RU_RU."'"));

define('RU_RU', 'ru_RU');

SQLSTATE[HY000] [1238] Variable 'lc_time_names' is a read only variable