[Yii2] Yii2 sample code of Error Action handling such 404 errors

yii2-actionError.md

[Yii2] Yii2 sample code of Error Action handling such 404 errors

/**
 * Error action
 *
 * @return void
 */
public function actionError()
{
    $exception = Yii::$app->errorHandler->exception;
    // Error route
    switch ($exception->statusCode) {
        case 404:
            $this->layout = 'empty';
            return $this->render('error_404', ['exception' => $exception]);
            break;

        default:
            $this->redirect('/');
            break;
    }
}