Ask HN: What's the best way to do COMET in PHP?

PHP is probably not a good choice for COMET because the required open connection will block your server:

http://stackoverflow.com/questions/603201/using-comet-with-p...

I guess this is the corner case one would use services like pusherapp.com

PS. Don't you like services that deliberately try to hide information from you?

I've used PHP for Comet a couple of times and I've never had a massive problem with it.

The only thing I found was that the PHP sessions tended to lock the connection, so if you tried to change page it would never load. session_close() seemed to fix this pretty well.

Also, It's worth setting a time out because scripts often keep running in the background if the connection isn't closed properly.