title: PHP - easiest way to get $_GET parameters string as written in the URL
body: <p>I'm trying to redirect from one page to another while retaining the parameters.</p>
  
  <p>e.g. if I have a page page.php?param1=1&amp;param2=2, what's the easiest way to extract "param1=1&amp;param2=2"?</p>