could an audio streaming reflector be written in php?

I would like to stream audio data from a low bandwidth computer to a high bandwidth server, and then have listeners connect and listen via the high bandwidth server. In java I would have a small process run on the server that would receive the audio stream and echo a copy of it down to each listener. Since PHP is so widely supported on servers, I find myself wondering if the same thing has been done, or could be done, through PHP? Thanks, Kendal http://www.freedomaudio.com