title: access root file from subdomain in PHP
body: <p>Is it possible to include file from the ftp's root in a script in a subdomain ?</p>
  
  <p>This doesn't work for me: </p>
  
  <pre><code>include($_SERVER['DOCUMENT_ROOT'].'/joomla.php');
  </code></pre>
  
  <p>Can someone help me ?</p>