I was wondering what options do we have? PHP is open, I know. But what if I want to bind my work to one server, so that a client could not resell / steal my work. I run my own server, so I can provide a remote authorization mechanism, but I'm not yet aware of any.
What options do we have? Zend is paid and useless because of DeZender; ditto ionCube. So, what are our protection options?