Telnet and PHP

I was doing some research on creating a webbased telnet client and I am unsatisfied with Java applets. I would like to create a server side telnet client, so the user side is only required to have a working web browser that supports HTML. Thus, I turned to PHP. I found one example, but it does not allow for active user input. While I will sit down this evening and work with the code, I was wondering if anyone had/knew of a good example of a PHP telnet client.