matchCallback in AccessControlFilter in Yii2, an attempt to read
Yii::$app->controller->actionParams inside this callback fails, because these attributes are empty.
This is by design, because AccessControlFilter is executed at an earlier stage than parameters binding.
If you need to read action parameters inside
matchCallback (for example to judge, if user has access to particular action, basing on action’s parameters) then the only way is to read them from
Yii::$app->request->get(). More details here or here.