How to make messenger using php

php funda for chat messenger

[manoj badola]

I want to make a chat messenger in php.
But I don't know the basic requirement for that.
I do not want to copy the code from net, I want to make my own.Basic requirement means how it works in LAN or multiuser environment.

[jatar_k]

I think you should try and find one already developed and then you can use that as your guidelines.