title: Change HTTP_REFERRER using php before redirecting
body: <p>I have a script which redirects to an link like</p>
  
  <pre><code>header("Location:http://foo.com/abc.xyz");
  </code></pre>
  
  <p>but I want to either set the <code>HTTP_REFERRER</code> to be <code>http://foo.com</code> or <code>blank</code> so that the site <code>http://foo.com</code> can not track that the reference was sent from another domain in which script is installed.</p>