Using comet with PHP?

Question

I was thinking of implementing real time chat using a PHP backend, but I ran across this comment on a site discussing comet:

My understanding is that

Answer 1

I'm current implementing a scalable PHP Comet server using socket functions. It is called 'phet' ( [ph]p com[et] )

Project page: http://github.com/Tim-Smart/phet

Free free to join in on development. I have currently managed to get most of the server logic done, just need to finish off the client side stuff.

EDIT: Recently added 'Multi-threading' capabilities using the pcntl_fork method :)