PHP Check if any file is under certain directory Options

[Mikeplyts]

Thinking it'd a be a lot more efficient, I was wondering: how do you check to see if a file is under a certain directory? Basically, it would be something similar to a wildcard or something.

I'm pretty familiar with checking the URL's file name (in the most basic method):

CODE

<?php
$uri = $_SERVER['SCRIPT_NAME'];

if ($uri == '/path/to/file.php') echo 'Woo.'; else echo 'Aw.';
?>

Now, what I'm imagining, when it comes to checking for any file under a directory, is this:

CODE

<?php
$uri = $_SERVER['SCRIPT_NAME'];
$name = *WILDCARD SORT OF SHIT HERE*;

if ($uri == '/path/to/' . $name . '.php') echo 'Woo.'; else echo 'Aw.';
?>

Any ideas would be awesomely appreciated. Yeah, awesomely is a word.