title: include parent directory not working
body: <p>So I have a site that uses subfolders for each subpage, however I can't get every directory to work.</p>
  
  <p>the fotter.php is called in correctly, however not the head.php.
  What is wrong?</p>
  
  <pre><code>php-file:
  &lt;?php include_once("analyticstracking.php") ?&gt;
  &lt;?php include('../head.php'); ?&gt;
  &lt;?php include('header.php'); ?&gt;
  &lt;?php include('counters.php'); ?&gt;
  &lt;?php include('quiz.php'); ?&gt;
  &lt;?php include('../goal.php'); ?&gt;
  &lt;?php include('../footer.php'); ?&gt;
  </code></pre>