I've got a shared linux hosting. Apache is running onto it. My website is built-in php. I've got a chat application which utilizes ajax lengthy polling. I wish to transform it to comet chat. I don't cash understanding about server things. Help me step-by-step suggestion. It will likely be a tremendous help in my experience. Thanks ahead of time.

Lengthy Polling is a kind of Comet.

But either your chat application is not well used or perhaps your provider will kick you inside a couple of days. A chat using Lengthy Polling may have as numerous participants as you will find PHP processes. Each participant - each connection - occupies a PHP process. I do not believe that your provider is ok that the application takes 100 processes at any given time.