title: PHP unable to include other PHP files
body: <p>I've playing with a very simple setup: index.php with a header.php in the same directory. I've tried all the ways to include the header.php into my index.php but I still get a 500 - Internal Server Error.</p>
  
  <p>So I tried the most fool-proof method and only coded this into my index.php</p>
  
  <pre><code>&lt;?php
  include("http://mywebsite.com/header.php"); 
  echo "index";
  ?&gt;
  </code></pre>
  
  <p>Then in my header.php I only coded</p>
  
  <pre><code>&lt;?php echo "header"; ?&gt;
  </code></pre>
  
  <p>I cannot figure out whats causing the problem. I've included an absolute path to the header. When I remove the include function the 500 error is no longer an issue.</p>
  
  <p>I'm running my site using GoDaddy with a Plesk/Windows platform if that makes any difference?</p>