get location of iframe tag

[liamoco]

What I want to do is quite difficult to explain so sorry for any confusion. Lets says I have two domains, abc.com and xyz.com. abc.com has and iframe tag that is showing content from xyz.com, in xyz.com how can display where the user is viewing the content from? (e.g. "you are viewing this content from abc.com") If you believe you can help but don't understand please say.

 

Thanks

[liamoco]

after many many many hours of searching I have finally found a solution in PHP

 

getenv("HTTP_REFERER");