AMFPHP vs MediaTemple
I just set up AMFPHP on mediaTemple (gs) and I ran into a bit of a problem where I couldn’t get any messages back from AMFPHP. I’d get an error of NetConnection.Call.BadVersion which apperas as faultCode:INVALID_AMF_MESSAGE in the service broswer.
It turned out to be an incompatability with php 5.2 on the MT server. The solution was simple and elegant, I had to make an entry in the .htaccess file to enforce a specific php version. The answer is on knowledgebase: