PHP uses session and cookie at the same time to save the implementation code of user login information, sessioncookie

PHP uses session and cookie at the same time to save the implementation code of user login information, sessioncookie_PHP tutorial

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Release： 2016-07-12 08:51:52

Original

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php uses both session and cookie to save the implementation code of user login information, sessioncookie

1. User login status operation class UserLogin

<&#63;php

final 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);
 }

}

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Copy after login

2. Call when the user enters the user name and password to make relevant judgments

<&#63;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()."<br>";
 }
}

&#63;>

Copy after login

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