PHP live chat with ajax poll

Question

I need to create a chat similar to facebook chat.

I am going to use an ajax poll (send a request every 2-3 seconds).

Is this a good approach? Or do I need to use other server languages ​​like erlang and server-comet?

Answer 1

Or do I need to use other server languages

No - this is not relevant - the biggest problem is that HTTP does not support push notifications, so the language that you use on the web server practically does not matter.

comet server?

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Answer 2

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