ecshop实现用户自动登陆的方法

if (empty($_SESSION['user_id']))
{
if ($user->get_cookie())
{
/* 如果会员已经登录并且还没有获得会员的帐户余额、积分以及优惠券 */
if ($_SESSION['user_id'] > 0)
{
update_user_info();
}
}
else
{
$_SESSION['user_id'] = 0;
$_SESSION['user_name'] = '';
$_SESSION['email'] = '';
$_SESSION['user_rank'] = 0;
$_SESSION['discount'] = 1.00;
if (!isset($_SESSION['login_fail']))
{
$_SESSION['login_fail'] = 0;
}
}
}

function set_cookie($username='', $remember= null )
{
if (empty($username))
{
/* 摧毁cookie */
$time = time() - 3600;
setcookie("ECS[user_id]", '', $time, $this->cookie_path);
setcookie("ECS[password]", '', $time, $this->cookie_path);
}
elseif ($remember)
{
/* 设置cookie */
$time = time() + 3600 * 24 * 15;
setcookie("ECS[username]", $username, $time, $this->cookie_path, $this->cookie_domain);
$sql = "SELECT user_id, password FROM " . $GLOBALS['ecs']->table('users') . " WHERE user_name='$username' LIMIT 1";
$row = $GLOBALS['db']->getRow($sql);
if ($row)
{
setcookie("ECS[user_id]", $row['user_id'], $time, $this->cookie_path, $this->cookie_domain);
setcookie("ECS[password]", $row['password'], $time, $this->cookie_path, $this->cookie_domain);
}
}
}

$time = time() - 3600;
setcookie("ECS[user_id]", '', $time, $this->cookie_path);
setcookie("ECS[password]", '', $time, $this->cookie_path);