Dec to HEX conversion

HI All

I am using a MySQLi data connection example ( http://datatables.net/development/server-side/php_mysqli ) to retrieve the required data, this is working great but the information in the Database is stored in a decimal format. I need to display this as a Hex value.

I there a method to do this? I have search and date's can be reformatted and numbers formatted to show thousands etc, but nothing for hex.

Any pointers would be appreciated.

Regards

Wayne