protected function validateCode($code)
    {
        if (is_integer($code)) {
            return true;
        }

        // Plug it back in and see what we get
        if (is_string($code)) {
            return $this->set($code);
        }

        if (is_array($code)) {
            return $this->validateCodeArray($code);
        }

        return false;
    }