Cml\Vendor\VerifyCode::checkCode PHP Method

    public static function checkCode($input, $isCn = false, $verifyName = 'verifyCode')
    {
        $key = Cookie::get($verifyName);
        if (!$key) {
            return false;
        }
        $code = Model::getInstance()->cache()->get($key);
        Model::getInstance()->cache()->delete($key);
        $isCn && ($input = md5(urldecode($input)));
        if ($code === false || $code != $input) {
            return false;
        } else {
            return true;
        }
    }