title: Setting functions in variables
body: <p>While looking at someone's code today, I saw this:</p>
  
  <pre><code>public $setCookieFunction = 'setcookie';
  
  $setcookie = $this-&gt;setCookieFunction;
  </code></pre>
  
  <p>Anyone knows how this works?</p>
  
  <p>Thanks!</p>