Simple comet example using php and jquery

Question

Can anyone give me a good and simple example of the comet technique using PHP?

I just need an example that uses a persistent HTTP connection or something similar. I

Answer 1

Never having used this technique and studying the Wikipedia article on the topic, "Long Polling" seems like the only viable solution. It sounds pretty simple to implement by infinitely looping and sleeping a script on the server. There's some actual code in the HTTP Streaming page linked to from the Wikipedia article.

Have you tried any of this and stumbled on specific problems?