title: How to have PHP session expire upon browser close OR some extended duration of time
body: <p>My php session is set to expire when user closes the browser but I noticed that if I leave my browser open for an extended period of time (24+ hours for example) the session still persists.  </p>
  
  <p>Is there a way that I can have these sessions expire either when the browser is closed or when some extended period of time has transpired?  </p>