Help with sessions/cookies

[LooieENG]

I have a login script working perfectly, but it only uses sessions. How do I use cookies? Is it as simple as setting a cookie with the session ID?

 

I want it to let the user stay logged in forever.

 

Thanks

 

Is this right?

 

setcookie("loggedIn",session_id(), time()+99999*99999*99999);