下面小编就为大家带来一篇php同时使用session和cookie来保存用户登录信息的实现代码，小编觉得挺不错的，现在分享给大家，也给大家做个参考，一起跟随小编过来看看吧。

1、用户登录状态操作类UserLogin

1. <?php
2. final class UserLogin {
3. public function __construct() {
4. }
5. public static function getUserInfo() {
6. if (isset($_COOKIE["user_id"])&&$_COOKIE["user_id"]&&(trim($_COOKIE["user_id"])!="")) {
7. if (isset($_SESSION["USER_INFO"]))
8. return $_SESSION["USER_INFO"];
9. $dao = new UserDao();
10. $user = $dao->find($_COOKIE["user_id"]);
11. if ($user) {
12. $_SESSION["USER_INFO"] = $user;
13. setcookie("docloud_sid", session_id(), time() + 36000);
14. setcookie("user_id", $_COOKIE["user_id"], time() + 36000);
15. if (array_key_exists("selected_prj_id", $_COOKIE))
16. setcookie("selected_prj_id", $_COOKIE["selected_prj_id"], time() + 36000);
17. if (array_key_exists("selected_class_id", $_COOKIE))
18. setcookie("selected_class_id", $_COOKIE["selected_class_id"], time() + 36000);
19. if (array_key_exists("selected_image_id", $_COOKIE))
20. setcookie("selected_image_id", $_COOKIE["selected_image_id"], time() + 36000);
21. if (array_key_exists("test_image_ids", $_COOKIE))
22. setcookie("test_image_ids", $_COOKIE["test_image_ids"], time() + 36000);
23. if (array_key_exists("upload_image_ids", $_COOKIE))
24. setcookie("upload_image_ids", $_COOKIE["upload_image_ids"], time() + 36000);
25. return $user;
26. }
27. }
28. self::clearCookie();
29. return null;
30. }
31. public static function setUserInfo($userInfo) {
32. $_SESSION["USER_INFO"] = $userInfo;
33. setcookie("docloud_sid", session_id(), time() + 36000);
34. setcookie("user_id", $userInfo->getId(), time() + 36000);
35. }
36. public static function isLogin() {
37. if (self::getUserInfo()) {
38. return true;
39. }
40. return false;
41. }
42. public static function delUserInfo() {
43. self::clearCookie();
44. session_destroy();
45. }
46. private static function clearCookie() {
47. setcookie("docloud_sid", "", time() - 36000);
48. setcookie("user_id", "", time() - 36000);
49. setcookie("selected_prj_id", "", time() - 36000);
50. setcookie("selected_class_id", "", time() - 36000);
51. setcookie("selected_image_id", "", time() - 36000);
52. setcookie("test_image_ids", "", time() - 36000);
53. setcookie("upload_image_ids", "", time() - 36000);
54. }
55. }
56. ?>

2、在用户输入用户名、密码处调用来做相关判定

1. <?php
2. require_once 'Init.php';
3. // if logged in, logout
4. if (UserLogin::isLogin() && $_COOKIE["user_id"]==1) {
5. UserLogin::delUserInfo();
6. }
7. else if (UserLogin::isLogin()){
8. Utils::redirect('welcome');
9. }
10. $username = null;
11. $password = null;
12. $msg = "";
13. if (isset($_POST['username']) && isset($_POST['password'])) {
14. $username = addslashes(trim(stripslashes($_POST ['username'])));
15. $password = addslashes(trim(stripslashes($_POST ['password'])));
16. // validate
17. $errors = LoginValidator::validate($username, $password);
18. if (emptyempty($errors)) {
19. // save
20. $dao = new UserDao();
21. $user = $dao->findByName($username);
22. $last_login_ip = Utils::getIpAddress();
23. $user->setLastLoginIp($last_login_ip);
24. $now = new DateTime();
25. $user->setLastLoginTime($now);
26. $dao->save($user);
27. UserLogin::setUserInfo($user);
28. Flash::addFlash('登录成功！');
29. Utils::redirect('welcome');
30. }
31. foreach ($errors as $e) {
32. $msg .= $e->getMessage()."<br>";
33. }
34. }
35. ?>

以上这篇php同时使用session和cookie来保存用户登录信息的实现代码就是小编分享给大家的全部内容了。