Zend debugger is basically the server side component that is used by Zend Studio. You need this to do your remote debugging!!

Normally you’d find this included in an installation of Zend Core or Zend Platform. However we aren’t using Zend’s apache php bundle so this little gem has to be loaded…

It’s hard to find on the net and not well advertised - I imagine because of Zend’s preference that you’d start using Zend Core.. Which looks great mind you but is missing some vital extensions some of our projects are using..

http://downloads.zend.com/pdt/server-debugger/