title: index.php is not opening and running as download the file
body: <p>When I attempt to navigate to the PHP script at <a href="http://localhost/project/admin" rel="noreferrer">http://localhost/project/admin</a>, I expect to see the script results in my web browser.</p>
  
  <p>Instead, I see a dialog box for downloading the file with the message below:</p>
  
  <blockquote>
    <p>You have chosen to open <code>&lt;filename&gt;</code>, which is a: <code>application/x-httpd-php</code> from: <a href="http://localhost" rel="noreferrer">http://localhost</a> <br/>
    What should Firefox do with this file? <code>Open with...</code> &bullet; <code>Save...</code> &bullet; etc.</p>
  </blockquote>
  
  <p>Any idea what is going on?</p>