You could use `Yii::$app->request->referrer` which returns the last page the user was on.
Usage is straightforward:
return $this->redirect(Yii::$app->request->referrer);
You need also take into account that `referrer` can be `null`:
return $this->redirect(Yii::$app->request->referrer ?: Yii::$app->homeUrl);

You could use `Yii::$app->request->referrer` which returns the last page the user was on.
Usage is straightforward:
return $this->redirect(Yii::$app->request->referrer);
You need also take into account that `referrer` can be `null`:
return $this->redirect(Yii::$app->request->referrer ?: Yii::$app->homeUrl);
See [the docs][1].

[1]: http://www.yiiframework.com/doc-2.0/yii-web-request.html#$referrer-detail