2
Yes, just use the following code and save your file as .php.
Here is an example 404 error page. You can use regular html content in the same way as you see fit.
All you need to do is insert the following php code on the top and bottom of your html document.
<?php
include('mainfile.php');
include('header.php');
$xoopsOption['show_rblock'] = 1;
?>
<html>
<center>
The page you have requested can not be found on this website.<br>
Please be sure you have used the correct address or select a link from the menu.
<p><img src="/images/alert.gif" width="160" height="120"></p>
<p>
(Error 404 Page Not found)
<p>
</center>
</html>
<?php
include('footer.php');
?>