Yii2: how can I make sure session is always started?

Question

How can make sure session is always started in Yii2? In Yii 1.0 there seemed to be a configuratio parameter autoStart but I don't see that in Yii2.

Do I need to manually call Yii::$app->session->open() (or session_start() ), and if so, where is a good place to do that for all requests?

At the time of writing The Definitive Guide doesn't talk about it.

Answer 1

Every time you call method processing session data in Yii 2, session is started automatically if it hasn't started already.

You can always call Yii::$app->session->open() directly if you want.