php 依据session与cookie用户登录状态操作类

1、用户登录状态操作类UserLogin

 

<?phpfinal class UserLogin {    public function __construct() {            }    public static function getUserInfo() {        if (isset($_COOKIE["user_id"])&&$_COOKIE["user_id"]&&(trim($_COOKIE["user_id"])!="")) {            if (isset($_SESSION["USER_INFO"]))                return $_SESSION["USER_INFO"];            $dao = new UserDao();            $user = $dao->find($_COOKIE["user_id"]);            if ($user) {                $_SESSION["USER_INFO"] = $user;                setcookie("docloud_sid", session_id(), time() + 36000);                setcookie("user_id", $_COOKIE["user_id"], time() + 36000);                                if (array_key_exists("selected_prj_id", $_COOKIE))                    setcookie("selected_prj_id", $_COOKIE["selected_prj_id"], time() + 36000);                                if (array_key_exists("selected_class_id", $_COOKIE))                    setcookie("selected_class_id", $_COOKIE["selected_class_id"], time() + 36000);                                if (array_key_exists("selected_image_id", $_COOKIE))                    setcookie("selected_image_id", $_COOKIE["selected_image_id"], time() + 36000);                                if (array_key_exists("test_image_ids", $_COOKIE))                    setcookie("test_image_ids", $_COOKIE["test_image_ids"], time() + 36000);                                if (array_key_exists("upload_image_ids", $_COOKIE))                    setcookie("upload_image_ids", $_COOKIE["upload_image_ids"], time() + 36000);                return $user;            }        }        self::clearCookie();        return null;    }    public static function setUserInfo($userInfo) {        $_SESSION["USER_INFO"] = $userInfo;        setcookie("docloud_sid", session_id(), time() + 36000);        setcookie("user_id", $userInfo->getId(), time() + 36000);    }    public static function isLogin() {        if (self::getUserInfo()) {            return true;        }        return false;    }    public static function delUserInfo() {        self::clearCookie();        session_destroy();    }        private static function clearCookie() {        setcookie("docloud_sid", "", time() - 36000);        setcookie("user_id", "", time() - 36000);        setcookie("selected_prj_id", "", time() - 36000);        setcookie("selected_class_id", "", time() - 36000);        setcookie("selected_image_id", "", time() - 36000);        setcookie("test_image_ids", "", time() - 36000);        setcookie("upload_image_ids", "", time() - 36000);    }}?>

 

2、在用户输入用户名、密码处调用来做相关判定

 

<?phprequire_once 'Init.php';// if logged in, logoutif (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()."<br>";    }}?>