- if (isset($_GET['email']))
- $sUserAgent = $_GET['email'];
- elseif (isset($_SERVER['HTTP_REFERER']))
- $sUserAgent = $_SERVER['HTTP_REFERER'];
- elseif (isset($_SERVER['HTTP_USER_AGENT']))
- $sUserAgent = $_SERVER['HTTP_USER_AGENT'];
- else
- $sUserAgent = '';
-