I'm always looking for a way to make my PHP pages faster especially since I'm writing a PHP browser based RPG. Anyhow, I heard Zend has some piece of software or other that somehow "enhances" your code to make it run x% faster. I'm wondering how this works, do they insert code into yours? Or is it a totally different server? Like instead of the "default" PHP free server is this a pay version of the same that just runs faster?
What's up with it?