title: What is the difference between $_SERVER['PATH_INFO'] and $_SERVER['ORIG_PATH_INFO']?
body: <p>What’s the difference between <code>$_SERVER['PATH_INFO']</code> and <code>$_SERVER['ORIG_PATH_INFO']</code>? How do I use them?</p>
  
  <p>When I run <code>print_r($_SERVER)</code>, <code>PATH_INFO</code> and <code>ORIG_PATH_INFO</code> are not present in the array. Why not? How can I enable them?</p>
  
  <p>I have read the PHP manual on them, but still don’t understand them.</p>