<?php 
   $page = &$_GET['page']; 

   switch ($page) { 
   case "about": 
      $page = "about.txt"; 
      break; 
   case "test": 
      $page = "test.txt"; 
      break; 
   default: 
     $page = "default.txt"; 
   } 

   $file = getcwd()."/text/".$page; 

   if ($page && is_file($file)) {require($file);} 
?>