So, you just received instructions to download and try out Zend Server. Or, you heard that Zend Server is a “PHP Application Server”, but you have no idea what that means and you want to find out. What do you do?
What I have often seen is that people will download and install Zend Server, try a PHP application on it and see if it works. They see that it does work. Then they ask “ok, it works but it’s not worth the price so I’ll just go back to what I was using before.” The problem here is that more often than not, and I’m sure it’s a MUCH more often than not, “worth” is not defined.