子域名的Cookie

Question

I´m building a big project with many services, like Game Hosting, "YouTube" alternative, and many other stuff. Every service has subdomain, like kwindu.eu for GameHosting, play.kwindu.eu for "YouTube" alternative, pack.kwindu.eu,....

If you want to log in, you are forwarded to kwindu.eu, then you log in and php script generate cookie for ".kwindu.eu"

Here is the cookie code, I´m using:

setcookie("logedin", $session, time() + 86400, "/", ".kwindu.eu");

This works good with chrome, if i check cookies there is a cookie for kwindu.eu and everything works fine. But when i try to login with Firefox or IE, system show me as loged in only at kwindu.eu.

Answer 1

Try removing the dot. That is:

setcookie("logedin", $session, time() + 86400, "/", "kwindu.eu");

The dot was required for older browsers implementing this RFC.

See if that works.