php files not running in certain directories xampp

[alex_pof]

Hi i have been trying to get xampp up and running on my computer for a few days now and i have everything working but php. when ever i run a php file it doesn't get run although html files do. The thing i cant figure out with it is how come the same php file works when put in

C:\xampp\htdocs\xampp

but not when run from

C:\xampp\htdocs\gamemakerhelper

All help would be greatly appreciated.