    public static function mb_strlen($s, $encoding = null)
    {
        $encoding = self::getEncoding($encoding);

        return iconv_strlen($s, $encoding);
    }
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.