Using php redirects for sponsor links

[Beenie]

I wanted to setup some php redirects for sponsor links but can't seem to get it working. Can anyone lend me a hand?
I've put this in a .php file

<?php header(’Location: http://www.link.com/') ; ?>

But when I hit the link nothing happends and I just see a blank page.
What am I doing wrong or is there another way to do this?

This ofcourse will not track anything but just function as a simple redirect. Are there any scripts out there that can actually track hits but still make links like domain.com/go/paysitename.php ?

Any help will be appreciated.