Use custom $forum[variable] on forumdisplay

[Dave Strider]

So I have $forum[‘variable’] that's pulled from the database. It works like a charm on the index, where I run into problems is when it comes to FORUMDISPLAY where it returns nothing. I feel like this is super simple and I’m making it more complicated than I need to. Any help? Or at least a point in the right direction.

Edit: I happened to figure this out, was making it way too complicated for my own good lol.