When I want to remove a Cookie I try
unset($_COOKIE['hello']);
I see in my cookie browser from firefox that the cookie still exists. How can I really remove the cookie?
You May Try this
if (isset($_COOKIE['remember_user'])) {
unset($_COOKIE['remember_user']);
setcookie('remember_user', null, -1, '/');
return true;
} else {
return false;
}