menu

<?php
$current_page = basename($_SERVER['PHP_SELF']);
$pages = array("index.php" => "Home","about.php" => "About", "contact.php" => "Contact");
echo "<ul id='menu'>";
foreach($pages as $key => $value){
	if($current_page == $key){
		echo "<li class='selected'> <a href='$key'> $value </a></li>";
	}
	else{
		echo "<li> <a href='$key'> $value </a></li>";
	}
}
echo "</ul>";
?>