Unable to verify your data submission error resolution

If you do not generate the form with the ActiveForm component provided by YII2, but instead customize the form, you will be presented with this error when you submit the form Unable to verify your data submission

This is because the Web page access when the form form will have a corresponding hidden to be input:_csrf verified to be able to access the normal;
Not the way Web Access is accessed (not through Web Forms) csrf验证 .

The above can be found by looking at the source code that has a name=_csrf hidden.

$enablecsrfvalidation=false can be set on the controller;

Unable to verify your data submission error resolution