[fowlplay4]

You don't even need PHP.

1. Setup cbk's http server script on your server.
2. Create a dynamic page on the graal webserver to "login" (you won't be able to use your Graal account/authentication), get and send chat messages.
3. Create a client page on your webserver and use AJAX/Javascript to communicate with your Graal server's webserver.

You're going to have to learn how to do it on your own.