After integrating Symfony with Flex through Zend_Amf, I had to debug it and I needed some logs on server side.
Below I present my LoggedAmfServer extending Zend_Amf_Server, which logs all methods called by Flex and its’ responses. You need to pass instance of sfLogger (ie. sfFileLogger) in the constructor.

» Read more: [Zend_Amf + Symfony + Flex] Server with Logger