public static function quote($str, $noarray = false) {

        if (is_string($str))

            return '\'' . addcslashes($str, "\n\r\\'\"\032") . '\'';

        if (is_int($str) or is_float($str))

            return '\'' . $str . '\'';

        if (is_array($str)) {

            if($noarray === false) {

                foreach ($str as &$v) {

                    $v = self::quote($v, true);

                }

                return $str;

            } else {

                return '\'\'';

            }

        }

        if (is_bool($str))

            return $str ? '1' : '0';

        return '\'\'';

    }