<?phpswitch ($i) { case 0: echo "i es igual a 0"; break; case 1: echo "i es igual a 1"; break; case 2: echo "i es igual a 2"; break;}?>
<?phpswitch($id) { default: include('index.php'); break; case "link": include('link.php'); break; case "otro-link.php": include('otro-link.php'); }?>
<?phpswitch($id) { default: include('index.php.php'); break; case "link": include('link.php'); break; case "otro-link.php": include('otro-link.php'); }?>
<?php$variable = $_GET['variable'];include($variable);?>
<?php$u=$_GET['url'];$a=htmlspecialchars(addcslashes(trim($u)));include($u);>?