Remember session till the next time I log in

[phpuser123]

I have visited various sites n when I log in,there is an option
"remember me"

I want to know how this works....Do they use a cookie for this task.....
I usually put time()+3600 for it to expire one hour later ...What should I put as the expiration date such that it remembers me till the next time I log in?

The syntax of the coookie is :
setcookie(name, value,expire,pa th,domain,secur e)

[Dormilich]

I want to know how this works

they indeed use cookies with a sufficient long expiration time. although I don’t think it’s the session cookie.