How do I implement basic “Long Polling”? [closed]

I can find lots of information on how Long Polling works (For example, this, and this), but no simple examples of how to implement this in code. All I can find is cometd, which relies on the Dojo JS framework, and a fairly complex server system.. Basically, how would I use Apache to serve the … Continue reading How do I implement basic “Long Polling”? [closed]