How to handle php session in application after user login

Hi,

After user login i need to handle php session in application so that i am able to display username and load a store with that username.

Code:

  var queue= this.getViewModel().get('queue');
    queue.load({
         params:{
          filter:Ext.JSON.encode([{property: "queueUser",value:localStorage.getItem('username')}])
         }
       });

Is there any other way to get the value of username other than localStorage ?

Thanks in advance

How to handle php session in application after user login