In yii2.0, it prompts csrf that the data you submitted cannot be verified.

In yii, we often encounter the situation that "the data you submitted cannot be verified". This is because yii has a csrf verification.

Just turn off csrf verification.

1. Add

public $enableCsrfValidation = false;

to the controller 2. Add a hidden field to 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, that is 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.

3. Ajax submission

The ajax library used here is axios ajax

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
})

Recommended related article tutorials: yii tutorial

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