title: PHPSESSID via get
body: <p>I'm trying to do some session fixation in my local website! :)
  I've read that if I send this request:</p>
  
  <p><em><a href="http://dev5.mysite.local/?PHPSESSID=abc123" rel="nofollow">http://dev5.mysite.local/?PHPSESSID=abc123</a></em></p>
  
  <p><code>$_COOKIE['PHPSESSID']</code> will be <code>abc123</code>!</p>
  
  <p>Why it is null? (I have after deleted session's cookies)</p>
  
  <p>I don't understand how a variable in get should be saved as cookie <code>superglobals</code>!</p>