yii csrf The data you submitted cannot be verified

Solution:

1. Turn off csrf verification

Add

public $enableCsrfValidation = false;

in the controller 2, Add hidden fields in the form

<input name="_csrf"
       type="hidden"
       id="_csrf"
       value="<?= Yii::$app -> request -> csrfToken ?>">

However, in the advanced version, there will be front and backends, which means that the name is not necessarily _csrf , it may be _csrf-backend or _csrf-frontend, etc. The field name of

_csrf must be consistent with the current page.

Recommended tutorial: yii framework

3. Ajax submission

I use the axios ajax library, but they are all similar.

axios({
    url: url,
    headers:{
        &#39;<?php echo \yii\web\Request::CSRF_HEADER; ?>&#39; : &#39;<?php echo Yii::$app -> request -> csrfToken; ?>&#39; // _csrf验证
    },
    data: postData,
}).then(response => {
    // 请求成功 回调
}).catch(error => {
    // 请求失败 回调
})

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