Im using apche2 on my linux machine

right now im playing with some code  which i save in my index.php file

my index.php file is located in here

/var/www/html/ index.php

if i type in localhost in firefox everything works as it should

if i type in localhost in chrome a different index.php file pops up (which i created a while back)

the strange thing is this file that pops up in chrome isnt even in that folder /var/www/html/ 

whats goin on here??