From your link.

"Note: For many reasons PHP is not an optimal language choice for creating servers or daemons. I created this library so if you must use PHP for these things, you can do it with ease and produce great results. But if you have the choice, Java, Python, Ruby, etc, are all better suited for this."

Possible but not recommended.

Interesting - hadn't seen that before. My own attempts at brewing something together with PHP's posix and pcntl libs were feeble.

Thanks for the link.