title: Need Yii2 Equivalent of Zend_Session_Namespace
body: <p>I am currently migrating an old Zend 1.1 website and need a replacement for the uses of Zend_Session_Namespace. </p>
  
  <p>Does one exist for Yii2?  Or alternatively is there a plugin or something to add this functionality?</p>
  
  <p>-Edit:
  Specifically the ability to set expiry timeouts and hop limits like Zend has.</p>
  
  <p>Thank you.</p>