Class yii\web\ErrorAction

ErrorAction displays application errors using a specified view.

To use ErrorAction, you need to do the following steps:

First, declare an action of ErrorAction type in the actions() method of your SiteController class (or whatever controller you prefer), like the following:

public function actions()
{
    return [
        'error' => ['class' => 'yii\web\ErrorAction'],
    ];
}

Then, create a view file for this action. If the route of your error action is site/error, then the view file should be views/site/error.php. In this view file, the following variables are available:

• $name: the error name
• $message: the error message
• $exception: the exception being handled

Finally, configure the "errorHandler" application component as follows,

'errorHandler' => [
    'errorAction' => 'site/error',
]