passing a POST variable through the url

Right now I'm passing a variable through the url and accessing it through _GET in another file.

header('location: addtitle.php?title='.urlencode($id));

I was wondering how I could do this for _POST and also redirect to anoth开发者_开发技巧er php file....should I just add a hidden form ?

What about trying curl to post a variable to the url?