Prado\Web\Javascripts\TJavaScript::checkJsonError PHP Метод

    private static function checkJsonError()
    {
        switch ($err = json_last_error()) {
            case JSON_ERROR_NONE:
                return;
                break;
            case JSON_ERROR_DEPTH:
                $msg = 'Maximum stack depth exceeded';
                break;
            case JSON_ERROR_STATE_MISMATCH:
                $msg = 'Underflow or the modes mismatch';
                break;
            case JSON_ERROR_CTRL_CHAR:
                $msg = 'Unexpected control character found';
                break;
            case JSON_ERROR_SYNTAX:
                $msg = 'Syntax error, malformed JSON';
                break;
            case JSON_ERROR_UTF8:
                $msg = 'Malformed UTF-8 characters, possibly incorrectly encoded';
                break;
            default:
                $msg = 'Unknown error';
                break;
        }
        throw new \Exception("JSON error ({$err}): {$msg}");
    }