title: why does this php code not execute?
body: <p>I have a strange problem: This code simply creates an empty page and does not show the hello world message.</p>
  
  <pre><code>&lt;!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"&gt;
  
  &lt;html&gt;
  
    &lt;meta content="text/html; charset=ISO-8859-1" http-equiv="content-type"&gt;
  
  &lt;title&gt;Austrian Legends&lt;/title&gt;
  
  &lt;/head&gt;
  
  &lt;body&gt;
  
  &lt;?php
  
  echo "hello world";
  
  ?&gt;
  
  &lt;/body&gt;
  
  &lt;/html&gt;
  </code></pre>
  
  <p>I know my webhoster provides PHP since I have been runnning a php file sucessfully from a form (-> submit).</p>