$_SERVER VARS are empty
<p>I'm using PHP 5.3.12 on a Windows system , i am trying to use some of the <code>$_SERVER</code> variables, but the following <code>$_SERVER</code> variables are empty for me</p>

<pre><code>$_SERVER['SERVER_NAME']
$_SERVER['SERVER_PORT']
$_SERVER['REQUEST_URI']
</code></pre>

<p>i have set <code>ServerName</code> in the config file, but <code>SERVER_NAME</code> and <code>SERVER_PORT</code> are both empty and i have no idea why that is, how can i set those variables and prevent them from being empty?</p>
