Example of preg_match

admin.php

<?php
/* test regex */

$input = array(
	'admin/',
	'mens-books',
	'admin/foo',
	'foo/bar',
	'min',
	'admin'
);

$regex = '/^(?!admin\/)/';

foreach ($input as $in) {
	echo $in . ' - ';
	if(preg_match($regex, $in)) {
		echo 'Match';
	} else {
		echo 'No Match';
	}
	echo "\n";
}