Permanent Login

How can I have pe开发者_JAVA技巧rmanent login of the people who log in to my site (Even if the browser is turned off) until they log out.

Use longterm cookies to identify your users.

Example:

setcookie('site_user', '<secure_hash>', time()+(3600*24*7)); //expire in a week

Notice, this technique involves security problems.

CCCCCCCCCCCCCCCOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOKKKKKKKKKKKKKKKKKKKKKKKKKKIIIIIIIIIIIIIIIIIEEEEEEEEEEEEEEEEEEEE!

Yeah, you'll be wanting to check out cookies, particularly the expire parameter, you can read about it here: http://www.php.net/manual/en/function.setcookie.php

Hope this helps.

just to expand as you dont want them to logout

erenon's code on your login page changed to support a year

setcookie('site_user', '<secure_hash>', time()+(3600*24*7*52)); // now a year

this code on every page it will always refresh the cookie if its there to create the never expire now if they log out for a year is the only time they wont stay logged in

if(isset($_COOKIE['site_user'])){
    setcookie('site_user', $_COOKIE['site_user'], time()+(3600*24*7*52));
}