title: Use a cookie on multiple level sub domain on apache php
body: <p>I'm trying to allow cookie share on multiple level subdomain like the following:
  a.test.exaxple.com
  b.test.example.com 
  i want the cookie to be visible for both sub domains but not to the www.example.com
  I've tried to set the cookie to ".test.example.com" like in normal subdomain but nothing..
  how can I do it ? </p>