LunarLoony 🛸 ♾ on Nostr: Any #PHP magi among us? I've used some PHP in my website mainly for templating ...

Any #PHP magi among us? I've used some PHP in my website mainly for templating purposes, and got a few functions for repeated layouts.
It seems like it works fine, but if I try to add anything to a page, it either fails to render completely, or does something really weird.
It's almost like I've forgotten to close a tag somewhere, but I've combed through and can't spot anything myself.
Anything obvious I should try first? Line endings maybe?