PHP code not working from file:// URL
<p>It's been a few months since I've used PHP so I'm assuming I'm just forgetting something trivial.  No matter what PHP I put into my .php file, the PHP part doesn't run.  Even something as simple as this</p>

<pre><code>&lt;html&gt;
    &lt;body&gt;
        &lt;?php 
            echo "hey";
        ?&gt;
    &lt;/body&gt;
&lt;/html&gt;
</code></pre>

<p>doesn't work--it produces a blank page.  Thanks for your help!</p>

<p>EDIT:  I forgot to mention that I'm viewing the pages in my browser by typing in the file location into the URL.  Ex) <code>file:///C:/Users/Student/Documents/test.php</code></p>
