I am re-studying PHP, proposing to make my own CMS. I already have a lot of things: modular system, login, etc., but some time ago I'm standing in a seemingly minuscule problem: the paths! Use WAMP in development and CPanel in semi-production tests (different systems on purpose) and mess with the "c: / a / a" and the "/ a / a /". Yes, it is partially solved using relative urls, but since I am in development, changing the directory tree becomes a problem. As I do? Armo a constant? Armo a variable? How do I make it independent if the CMS works on Windows or * NIX?