Valitron\Validator::validateLength PHP 메소드

    protected function validateLength($field, $value, $params)
    {
        $length = $this->stringLength($value);
        // Length between
        if (isset($params[1])) {
            return $length >= $params[0] && $length <= $params[1];
        }
        // Length same
        return $length !== false && $length == $params[0];
    }