For once you're welcome to crack the passwords on a site, go knock yourself out:
http://www.hulla-balloo.com/hack/
Couldn't get past level 5 :groan:
http://www.hulla-balloo.com/hack/
Couldn't get past level 5 :groan:

$file = openfile("password.txt", "r");
$password = readFromFile($file);
if ($userpassword != $password)
echo "I am sorry but you have entered an incorrect password."