Menu in php

Menu in php.php

<?php
$pages["index.php"] = "Home";
$pages["about.php"] = "About Us";
$pages["products.php"] = "Products";
$pages["price-list.php"] = "Price List";
$pages["contact.php"] = "Contact";

$active_page = basename($_SERVER["REQUEST_URI"]);

foreach($pages as $page => $page_title)
{
  $suffix = ($page == $active_page) ? "active" : "none";
  $nav.= "<li><a href='".$page."' class='".$suffix."'>$page_title</a></li>";
}

print $nav;