I have made a custom header for the admin page of X-Cart. I thought I could use an include tag so that I could store the header file on my website space, meaning I could update it in the future without having to go back and update all of the stores I have worked on. However, when I tried to use the below code in head_admin.tpl it wouldn't work. What am I doing wrong?
Any help is appreciated!
<?php include("http://www.mywebsite.com/_header.php"); ?>