php同时使用session和cookie来保存用户登录信息的实现代码_php实例

<?php
require_once 'Init.php';

// if logged in, logout
if (UserLogin::isLogin() && $_COOKIE["user_id"]==1) {
 UserLogin::delUserInfo();
}
else if (UserLogin::isLogin()){
 Utils::redirect('welcome');
}

$username = null;
$password = null;

$msg = "";

if (isset($_POST['username']) && isset($_POST['password'])) {
 $username = addslashes(trim(stripslashes($_POST ['username'])));
 $password = addslashes(trim(stripslashes($_POST ['password'])));
 // validate
 $errors = LoginValidator::validate($username, $password);
 
 if (empty($errors)) {
  // save
  $dao = new UserDao();
  $user = $dao->findByName($username);
  $last_login_ip = Utils::getIpAddress();
  $user->setLastLoginIp($last_login_ip);
  $now = new DateTime();
  $user->setLastLoginTime($now);
  $dao->save($user);
  UserLogin::setUserInfo($user);
  Flash::addFlash('登录成功！');
  Utils::redirect('welcome');
 }
 
 foreach ($errors as $e) {
  $msg .= $e->getMessage()."
";
 }
}

?>