Looking at the challenge, we are given a link `http://phpfuck.chal.uiuc.tf`.
Visiting that link tells us the flag is at `/flag.php`.
Let's try accessing the flag straight by navigating to `http://phpfuck.chal.uiuc.tf/flag.php`.
It tells us `No flag for you!`. Let's take a closer look at the site by viewing the source `view-source:http://phpfuck.chal.uiuc.tf/flag.php`.
And we have a flag! The flag is hidden in as a php comment and the final flag is `uiuctf{pl3as3_n0_m0rE_pHpee}`.
This was the easier version of `phpfuck_fixed`.
What we learned is that don't overthink, the answer might be hidden in plain sight.