[AlexBrock]

Thanks for the reply.

I have both of those lines so that I'm only using the code in between those two comments to avoid unnecessary markup.

I've tried even doing a simple return of a string, which also doesn't appear when the user isn't logged in but is there if logged in.

PHP Code:

<?php 
class Mcheadd_Api_Options extends vB_Api_Extensions
{
    public $product = 'mcheadd';

    public $developer = '';
    public $title = 'Pull in Site header';
    public $minver = '5.1.0';
    // public $maxver = '5.9.99';// Use vB default.
    // public $infourl = '';
    // public $checkurl = '';

    public $AutoInstall = 0;
    public $extensionOrder = 10;

    public function mcheadfunction(){
        return 'Test String';
    }    

}

these are stored in core/packages/mcheadd/api if that's any help

--------------- Added [DATE]1426877795[/DATE] at [TIME]1426877795[/TIME] ---------------

Lynne!

Changing the echo to return worked, not sure why but it did!

Thanks for all your help, you're my hero.