<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de">
<head>
<title>Hallo Welt!</title>
</head>
<body>
<?php
echo "Hallo Welt!";
?>
</body>
</html>