I'm having trouble setting up a custom 404 (not found) page.
In the control panel there is a icon for amending error pages and I choose the 404 option. It opens a text editor and at the bottom it says "save as ... 404.shtml". The help files say I can change the extension so I change it to 404.php because I want the 404 page to run a script:
<?php
require 'start.php';
print "<h1>Sorry...... etc ";
require 'end.php';
?>
The reason is that start and end contain the basic setup of the
website hosting.
Whatever I do, typing in a non existent page brings up a blank page with:
<!--
-->
Can anyone help?