PHP: $_SERVER variables: $_SERVER['HTTP_HOST'] vs $_SERVER['SERVER_NAME']
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/2297403/http-host-vs-server-name">HTTP_HOST vs. SERVER_NAME</a>  </p>
</blockquote>



<p>What is the difference between <code>$_SERVER['HTTP_HOST']</code> and <code>$_SERVER['SERVER_NAME']</code> ??</p>
