After looking it over I'm not sure if this is doing what I need.
I'm basically wanting to have 2 URLs for Tier2 traffic too, then have it alternate the URLs for each visitor.
I'd like to give 50% of my foreign traffic to one link and the other 50% to another (just like the lower part of the code does)
PHP Code:
else {
$destination_list = array(
'http://www.Tier1-Affiliate-Link-1.com',
'http://www.Tier1-Affiliate-Link-2.com'
);
$key = rand(0, count($destination_list) - 1);
header ('Location: '. $destination_list[$key] .'');