PHP page redirect with parameters

redirect.php

<?php 
  /* redirect mutouxiaogui.cn/blog to stay-stupid.com, the parameters remain unchanged */

  /* notify search engines that a page has been permanently moved to another location */
  header('Status: 301 Moved Permanently', false, 301);
  
  /* redirect to another page */
  $redirect_url = 'http://stay-stupid.com/'.basename($_SERVER['REQUEST_URI']);
  header('Location: '.$redirect_url);
  
  /* Make sure that code below does not get executed when we redirect. */
  exit();
?>