Hide Apture bar on certain pages

I'm actually writing this to help a guy out, but figured I'd post it here and if it's wrong maybe someone will correct it for him.

I think this code with hide the Apture bar on any page who's URL doesn't include a certain word:

<?php
$uri = $_SERVER["REQUEST_URI"];
$uri_array = split("/",$uri);
$uri_first = $uri_array[1]; // might need to change this to [1]
?>
<?php if ($uri_first == 'Enter word in url that must exist in order to see the code'){ ?>

Enter Apture 

<?php } ?>