Nice to see examples of use of AMF-PHP together with Flash remoting applications: Flash Remoting with PHP and the DesDev Resource Kit 2
For the Flash .fla file, I only had to modify 3 lines of the ActionScript, specifically the gateway URL and the service connections, so that they reflected the location of my AMF PHP based gateway. That was it for the .FLA. The real meat of the work involved creating a PHP class that replicated the functionality of the ColdFusion Component