If Statement (i think)

[Pino]

ok i'm trying to at the moment compare a password with a textfile, here my code

<?php
$user = $_POST['username'];
$pass = $_POST['password'];

$filecontents = file('person.data');

if ($pass == $filecontents[1])
{
echo "Welcome";
}
else
{
echo "Go away";
}


?>

but for some reason it allways says go away evan when i type the correct password in... any problems with my code? (i've only just got learning]