PMA\libraries\LanguageManager::showWarnings PHP Метод

    public function showWarnings()
    {
        // now, that we have loaded the language strings we can send the errors
        if ($this->_lang_failed_cfg || $this->_lang_failed_cookie || $this->_lang_failed_request) {
            trigger_error(__('Ignoring unsupported language code.'), E_USER_ERROR);
        }
    }