Andy Frey dropped us a line to tell us about a method he's come up with to make a remoting interface between Javascript and PHP5.
This is a demonstration of a very fast and easy way to build AJAX-type applications where communications between JavaScript on the client side and PHP5 on the server side is ideal. This library makes development of such systems fast and very simple.
In his example he shows how to create the PHP and Javascript functions that let the service talk back and forth. He defines a simple "Hello World" style application to show how it would be structured. He also includes a bit of more complex that has other functionality - getting a value out of an array and returning a property/private variable from the backend class.