Cookies not working on different pages

Question

Ok I have a cookie set, and I can clearly see it if I go to private data in Firefox... ok so when I echo it on one page in a certain directory it works, (www.example.com/dir

Answer 1

setcookie("Cookie_name", "Cookie_Value", time()+3600 , '/' );

fourth parameter ('/') will make your cookies accessible to pages in parent directories.