title: PHP SID not showing
body: <p>I cannot get my SID working ...</p>
  
  <pre><code>&lt;?php
  session_start();
  // Or maybe pass along the session id, if needed
  echo '&lt;br /&gt;&lt;a href="page2.php?' . SID . '"&gt;page 2&lt;/a&gt;';?&gt;
  </code></pre>
  
  <p>does not show up SID number but session_id is working not sure if I am missing something.
  THnks</p>