Solve the problem of Yii verification failure when entering the correct verification code

When making a request, I found that I entered the correct verification code, but the verification code error was prompted

Finally, I traced the code and found that if the Model did validate separately before save, then after the verification, The verification code will be regenerated

Then when our Model save, it will also be verified by validate. During verification, the verification code has been regenerated, so it will not match

<code>// 如果这里用到了验证码，就会出问题

$model = new Test();

$model->validate();

$model->save();

</code>

<code>
// 这样是正确的

$model = new  Test();
// 把需要验证的 attribute 放进去，排除验证码字段
$model->validate(array('test1','test2'));

$model->save()</code>

We can see framework/web/ widgets/captcha/CCaptchaAction.php You can easily find the problem

<code>
<?php

class CaptchaAction extends CCaptchaAction
{
    public function validate($input, $caseSensitive)
    {
        $code = $this->getVerifyCode();
        $valid = $caseSensitive ? ($input === $code) : !strcasecmp($input, $code);
        $session = Yii::app()->session;
        $session->open();
        $name = $this->getSessionKey() . 'count';
        if (!Yii::app()->request->isAjaxRequest) {
            $session[$name] = $session[$name] + 1;
        }
        
        // 这里会重新生成
        if ($session[$name] > $this->testLimit && $this->testLimit > 0) {
            $this->getVerifyCode(true);
        }
        return $valid;
    }
}

</code>

The above introduces the solution to Yii's failure to enter the correct verification code verification, including the content. I hope it will be helpful to friends who are interested in PHP tutorials.