PHP programming SSO detailed introduction and simple examples-PHP Tutorial-php.cn

Home

Backend Development

PHP Tutorial

PHP programming SSO detailed introduction and simple examples

高洛峰

Jan 17, 2017 pm 02:11 PM

PHP SSO Detailed Explanation

SSO has three modes: ①Cross-subdomain single point login ②Complete cross-single point domain login ③Station group shared identity authentication

The first mode is very simple. You only need to set the cookie domain to the root domain of multiple applications.

The second method is also very simple, which is to replace the authentication addresses of all applications with the same authentication address each time. Check whether you are logged in at the certification center. If you are logged in, issue an encrypted token to the calling application.

The third type of cross-domain is that it is a little troublesome to jump back and forth to verify the token.

Configuration directory structure

In the server root directory, create three new project directories:

|–/Website root directory/
|–|–/oa/
| –|–/bbs/
|–|–/blog/

Create a new functions.PHP script file in the root directory. The specific content is as follows:

<?php
 
/**
 * 获取登陆token
 * @param string $url 获取token的地址
 * 2017-01-03T13:08:43+0800
 */
function getToken($url)
{
  $bool = isLogin();
  if ($bool) {
    // 如果登陆了跳转到本站首页
    header(&#39;location: index.php&#39;);
    exit();
  }
 
  // 否则没有登陆,去另一个站点看是否登陆
  header(&#39;location: &#39;.$url);
}
 
// 校验令牌是否正确
function yzToken($domain)
{
  $url = isset($_GET[&#39;url&#39;]) ? $_GET[&#39;url&#39;] : &#39;&#39;;
  $username = isset($_GET[&#39;username&#39;]) ? $_GET[&#39;username&#39;] : &#39;&#39;;
  $token = isset($_GET[&#39;token&#39;]) ? $_GET[&#39;token&#39;] : &#39;&#39;;
 
 
  if (!empty($username) && !empty($token)) {
    $salt = &#39;taoip&#39;;
    $_token = md5($salt.$username);
    // 校验第三方站点过来时的token是否正确
    if ($_token == $token) {
      // 设置跳转过来的网站的Cookie
      setCook($username, $_token, $domain);
      header(&#39;location: index.php&#39;);
    }
  }
 
}
 
// 设置cookie
function setCook($username, $_password, $domain)
{
  // 校验成功,开始登陆
  setcookie(&#39;username&#39;, $username, time()+3600, &#39;/&#39;, $domain);
  setcookie(&#39;token&#39;, $_password, time()+3600, &#39;/&#39;, $domain);
  header(&#39;location: index.php&#39;);
}
 
// 判断是否登陆
function isLogin()
{
  $username = isset($_COOKIE[&#39;username&#39;]) ? $_COOKIE[&#39;username&#39;] : &#39;&#39;;
  $token = isset($_COOKIE[&#39;token&#39;]) ? $_COOKIE[&#39;token&#39;] : &#39;&#39;;
  $salt = &#39;taoip&#39;;
 
  $_token = md5($salt.$username);
 
  if ($token == $_token) {
    return true;
  } else {
    return false;
  }
}
 
?>

Copy after login

In the oa project directory, Create two new script files, index.php and login.php

Edit the index.php file

<?php
 
// OA站点
 
// (1)开启Session会话
session_name(&#39;taoip&#39;);
session_start();
// (2)获取用户名和token进行校验
$username = isset($_COOKIE[&#39;username&#39;]) ? $_COOKIE[&#39;username&#39;] : &#39;&#39;;
$token = isset($_COOKIE[&#39;token&#39;]) ? $_COOKIE[&#39;token&#39;] : &#39;&#39;;
 
$salt = &#39;taoip&#39;;
 
$_token = md5($salt.$username);
 
if ($token != $_token) {
  header(&#39;location: login.php&#39;);
  exit();
}
 
echo "欢迎{$username}用户,访问OA站点";
 
?>

Copy after login

Edit the login.php file

<?php
 
// OA站点登陆系统
require &#39;../functions.php&#39;;
 
// (2)验证
yzToken(&#39;taoip.cn&#39;);
 
// (1)判断是否登陆,登陆则跳转首页,未登录则去其他站点获取token
$url = isset($_GET[&#39;url&#39;]) ? $_GET[&#39;url&#39;] : &#39;&#39;;
if (empty($url)) {
  getToken(&#39;http://dengpeng.cc/login.php?url=http://oa.taoip.cn/login.php&#39;);
}
 
// (1)判断用户是否登陆
$bool = isLogin();
$url = isset($_GET[&#39;url&#39;]) ? $_GET[&#39;url&#39;] : &#39;&#39;;
if ($bool) {
  if (empty($url)) {
    header(&#39;location: index.php&#39;);
  } else {
    $username = isset($_COOKIE[&#39;username&#39;]) ? $_COOKIE[&#39;username&#39;] : &#39;&#39;;
    $token = isset($_COOKIE[&#39;token&#39;]) ? $_COOKIE[&#39;token&#39;] : &#39;&#39;;
    $lurl = $url.&#39;?username=&#39;.$username.&#39;&token=&#39;.$token;
    header(&#39;location: &#39;.$lurl);
  }
}
 
 
if (!empty($_POST)) {
  $username = isset($_POST[&#39;username&#39;]) ? $_POST[&#39;username&#39;] : &#39;&#39;;
  $password = isset($_POST[&#39;password&#39;]) ? $_POST[&#39;password&#39;] : &#39;&#39;;
 
  // 从库中查询用户密码
  @$link = mysql_connect(&#39;localhost&#39;, &#39;root&#39;, &#39;&#39;);
  mysql_query(&#39;use sso&#39;, $link);
  mysql_query(&#39;set names utf8&#39;, $link);
  $sql = "select * from users where username = &#39;".$username."&#39;";
  $user = mysql_fetch_assoc(mysql_query($sql, $link));
 
  // 校验
  $salt = &#39;taoip&#39;;
  $_password = md5($salt.$username);
 
  // var_dump($user[&#39;password&#39;] == $_password);
  // print_r($user);exit();
 
  if ($user[&#39;password&#39;] == $_password) {
    // 校验成功,开始登陆
    setcookie(&#39;username&#39;, $username, time()+3600, &#39;/&#39;, &#39;taoip.cn&#39;);
    setcookie(&#39;token&#39;, $_password, time()+3600, &#39;/&#39;, &#39;taoip.cn&#39;);
    // 如果URL没有值重定向到首页,否则重定向到URL页面
    if (empty($url)) {
      header(&#39;location: index.php&#39;);
    } else {
      header(&#39;location: &#39;.$lurl);
    }
  }
}
 
?>
 
<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <meta name="generator" content="Sublime Text 3114">
  <meta name="author" content="3@dengpeng.cc">
  <meta name="keywords" content="">
  <meta name="description" content="">
  <title>OA站点登陆系统</title>
</head>
<body>
  <p>
    <h2>oa.taoip.cn站点登陆系统</h2>
    <form action="" method="post">
      <label for="">用户名</label>
      <input type="text" name="username">
      <br>
      <label for="">密码</label>
      <input type="text" name="password">
      <hr>
      <button type="submit">提交</button>
    </form>
  </p>
</body>
</html>

Copy after login

In the bbs project directory, create a new index .php and login.php two script files

Edit the index.php file

<?php
/**
 * @author DengPeng <3@dengpeng.cc>
 * @since 2017/01/03
 * @copyright copyright (c) 2017 zixue.it GPL
 * @license http://www.zixue.it/
 */
 
// BBS站点
 
// (1)开启Session会话
session_name(&#39;taoip&#39;);
session_start();
// (2)获取用户名和token进行校验
$username = isset($_COOKIE[&#39;username&#39;]) ? $_COOKIE[&#39;username&#39;] : &#39;&#39;;
$token = isset($_COOKIE[&#39;token&#39;]) ? $_COOKIE[&#39;token&#39;] : &#39;&#39;;
 
$salt = &#39;taoip&#39;;
 
$_token = md5($salt.$username);
 
if ($token != $_token) {
  header(&#39;location: login.php&#39;);
  exit();
}
 
echo "欢迎{$username}用户,访问BBS站点";
 
?>

Copy after login

Edit the login.php file

<?php
/**
 * @author DengPeng <3@dengpeng.cc>
 * @since 2017/01/03
 * @copyright copyright (c) 2017 zixue.it GPL
 * @license http://www.zixue.it/
 */
 
// BBS站点登陆系统
require &#39;../functions.php&#39;;
 
// (2)验证
yzToken(&#39;taoip.cn&#39;);
 
// (1)判断是否登陆,登陆则跳转首页,未登录则去其他站点获取token
$url = isset($_GET[&#39;url&#39;]) ? $_GET[&#39;url&#39;] : &#39;&#39;;
if (empty($url)) {
  getToken(&#39;http://dengpeng.cc/login.php?url=http://bbs.taoip.cn/login.php&#39;);
}
 
// (1)判断用户是否登陆
$bool = isLogin();
$url = isset($_GET[&#39;url&#39;]) ? $_GET[&#39;url&#39;] : &#39;&#39;;
if ($bool) {
  if (empty($url)) {
    header(&#39;location: index.php&#39;);
  } else {
    $username = isset($_COOKIE[&#39;username&#39;]) ? $_COOKIE[&#39;username&#39;] : &#39;&#39;;
    $token = isset($_COOKIE[&#39;token&#39;]) ? $_COOKIE[&#39;token&#39;] : &#39;&#39;;
    $lurl = $url.&#39;?username=&#39;.$username.&#39;&token=&#39;.$token;
    header(&#39;location: &#39;.$lurl);
  }
}
 
 
if (!empty($_POST)) {
  $username = isset($_POST[&#39;username&#39;]) ? $_POST[&#39;username&#39;] : &#39;&#39;;
  $password = isset($_POST[&#39;password&#39;]) ? $_POST[&#39;password&#39;] : &#39;&#39;;
 
  // 从库中查询用户密码
  @$link = mysql_connect(&#39;localhost&#39;, &#39;root&#39;, &#39;&#39;);
  mysql_query(&#39;use sso&#39;, $link);
  mysql_query(&#39;set names utf8&#39;, $link);
  $sql = "select * from users where username = &#39;".$username."&#39;";
  $user = mysql_fetch_assoc(mysql_query($sql, $link));
 
  // 校验
  $salt = &#39;taoip&#39;;
  $_password = md5($salt.$username);
 
  // var_dump($user[&#39;password&#39;] == $_password);
  // print_r($user);exit();
 
  if ($user[&#39;password&#39;] == $_password) {
    // 校验成功,开始登陆
    setcookie(&#39;username&#39;, $username, time()+3600, &#39;/&#39;, &#39;taoip.cn&#39;);
    setcookie(&#39;token&#39;, $_password, time()+3600, &#39;/&#39;, &#39;taoip.cn&#39;);
    // 如果URL没有值重定向到首页,否则重定向到URL页面
    if (empty($url)) {
      header(&#39;location: index.php&#39;);
    } else {
      header(&#39;location: &#39;.$lurl);
    }
  }
}
 
?>
 
<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <meta name="generator" content="Sublime Text 3114">
  <meta name="author" content="3@dengpeng.cc">
  <meta name="keywords" content="">
  <meta name="description" content="">
  <title>BBS站点登陆系统</title>
</head>
<body>
  <p>
    <h2>bbs.taoip.cn站点登陆系统</h2>
    <form action="" method="post">
      <label for="">用户名</label>
      <input type="text" name="username">
      <br>
      <label for="">密码</label>
      <input type="text" name="password">
      <hr>
      <button type="submit">提交</button>
    </form>
  </p>
</body>
</html>

Copy after login

In the blog project directory, create a new index.php and login.php two script files

Edit the index.php file

<?php
/**
 * @author DengPeng <3@dengpeng.cc>
 * @since 2017/01/03
 * @copyright copyright (c) 2017 zixue.it GPL
 * @license http://www.zixue.it/
 */
 
// blog站点
 
// (1)开启Session会话
session_name(&#39;taoip&#39;);
session_start();
// (2)获取用户名和token进行校验
$username = isset($_COOKIE[&#39;username&#39;]) ? $_COOKIE[&#39;username&#39;] : &#39;&#39;;
$token = isset($_COOKIE[&#39;token&#39;]) ? $_COOKIE[&#39;token&#39;] : &#39;&#39;;
 
$salt = &#39;taoip&#39;;
 
$_token = md5($salt.$username);
 
if ($token != $_token) {
  header(&#39;location: login.php&#39;);
  exit();
}
 
echo "欢迎{$username}用户,访问blog站点";
 
?>
 
<?php
/**
 * @author DengPeng <3@dengpeng.cc>
 * @since 2017/01/03
 * @copyright copyright (c) 2017 zixue.it GPL
 * @license http://www.zixue.it/
 */
 
// blog站点
 
// (1)开启Session会话
session_name(&#39;taoip&#39;);
session_start();
// (2)获取用户名和token进行校验
$username = isset($_COOKIE[&#39;username&#39;]) ? $_COOKIE[&#39;username&#39;] : &#39;&#39;;
$token = isset($_COOKIE[&#39;token&#39;]) ? $_COOKIE[&#39;token&#39;] : &#39;&#39;;
 
$salt = &#39;taoip&#39;;
 
$_token = md5($salt.$username);
 
if ($token != $_token) {
  header(&#39;location: login.php&#39;);
  exit();
}
 
echo "欢迎{$username}用户,访问blog站点";
 
?>

Copy after login

Edit the login.php file

<?php
/**
 * @author DengPeng <3@dengpeng.cc>
 * @since 2017/01/03
 * @copyright copyright (c) 2017 zixue.it GPL
 * @license http://www.zixue.it/
 */
 
// blog站点登陆系统
require &#39;../functions.php&#39;;
 
// (2)验证
yzToken(&#39;dengpeng.cc&#39;);
 
// (1)判断是否登陆,登陆则跳转首页,未登录则去其他站点获取token
$url = isset($_GET[&#39;url&#39;]) ? $_GET[&#39;url&#39;] : &#39;&#39;;
if (empty($url)) {
  getToken(&#39;http://oa.taoip.cn/login.php?url=http://dengpeng.cc/login.php&#39;);
}
 
 
// (1)判断用户是否登陆
$bool = isLogin();
$url = isset($_GET[&#39;url&#39;]) ? $_GET[&#39;url&#39;] : &#39;&#39;;
if ($bool) {
  if (empty($url)) {
    header(&#39;location: index.php&#39;);
  } else {
    $username = isset($_COOKIE[&#39;username&#39;]) ? $_COOKIE[&#39;username&#39;] : &#39;&#39;;
    $token = isset($_COOKIE[&#39;token&#39;]) ? $_COOKIE[&#39;token&#39;] : &#39;&#39;;
    $lurl = $url.&#39;?username=&#39;.$username.&#39;&token=&#39;.$token;
    header(&#39;location: &#39;.$lurl);
  }
}
 
 
// (3)判断用户是否提交数据
if (!empty($_POST)) {
  $username = isset($_POST[&#39;username&#39;]) ? $_POST[&#39;username&#39;] : &#39;&#39;;
  $password = isset($_POST[&#39;password&#39;]) ? $_POST[&#39;password&#39;] : &#39;&#39;;
 
  // 从库中查询用户密码
  @$link = mysql_connect(&#39;localhost&#39;, &#39;root&#39;, &#39;&#39;);
  mysql_query(&#39;use sso&#39;, $link);
  mysql_query(&#39;set names utf8&#39;, $link);
  $sql = "select * from users where username = &#39;".$username."&#39;";
  $user = mysql_fetch_assoc(mysql_query($sql, $link));
 
  // 校验
  $salt = &#39;taoip&#39;;
  $_password = md5($salt.$username);
 
  // var_dump($user[&#39;password&#39;] == $_password);
  // print_r($user);exit();
 
  if ($user[&#39;password&#39;] == $_password) {
    setCook($username, $_password, &#39;dengpeng.cc&#39;);
    if (empty($url)) {
      header(&#39;location: index.php&#39;);
    } else {
      header(&#39;location: &#39;.$lurl);
    }
  }
}
 
?>
 
<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <meta name="generator" content="Sublime Text 3114">
  <meta name="author" content="3@dengpeng.cc">
  <meta name="keywords" content="">
  <meta name="description" content="">
  <title>blog站点登陆系统</title>
</head>
<body>
  <p>
    <h2>dengpeng.cc站点登陆系统</h2>
    <form action="" method="post">
      <label for="">用户名</label>
      <input type="text" name="username">
      <br>
      <label for="">密码</label>
      <input type="text" name="password">
      <hr>
      <button type="submit">提交</button>
    </form>
  </p>
</body>
</html>

Copy after login

Configure the local virtual host

Specific configuration I think everyone should be familiar with the steps, so I don’t need to go into details one by one. You only need to follow the reference I gave and configure the mapping to the directories corresponding to different domain names.

Domain Name/Project Directory/
oa.taoip.cn /oa/
bbs.taoip.cn /bbs/
dengpeng.cc /blog/

Congratulations, you have completed a simple SSO system

After the configuration is completed, remember to restart the web server. Then you only need to visit these three different sites to log in to one site, and other sites will no longer send login requests.

Thanks for reading, hope It can help everyone, thank you for your support of this site!

For more articles related to PHP programming SSO detailed introduction and simple examples, please pay attention to the PHP Chinese website!

Statement of this Website

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress images for free

Clothoff.io

AI clothes remover

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)

2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Repo: How To Revive Teammates

4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hello Kitty Island Adventure: How To Get Giant Seeds

4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

How Long Does It Take To Beat Split Fiction?

3 weeks ago By DDD

R.E.P.O. Save File Location: Where Is It & How to Protect It?

3 weeks ago By DDD

Hot Tools

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Where is the login entrance for gmail email?

7323

Java Tutorial

1625

CakePHP Tutorial

1350

Laravel Tutorial

1262

PHP Tutorial

1209

Related knowledge

11 Best PHP URL Shortener Scripts (Free and Premium) Mar 03, 2025 am 10:49 AM

Long URLs, often cluttered with keywords and tracking parameters, can deter visitors. A URL shortening script offers a solution, creating concise links ideal for social media and other platforms. These scripts are valuable for individual websites a

Introduction to the Instagram API Mar 02, 2025 am 09:32 AM

Following its high-profile acquisition by Facebook in 2012, Instagram adopted two sets of APIs for third-party use. These are the Instagram Graph API and the Instagram Basic Display API.As a developer building an app that requires information from a

Working with Flash Session Data in Laravel Mar 12, 2025 pm 05:08 PM

Laravel simplifies handling temporary session data using its intuitive flash methods. This is perfect for displaying brief messages, alerts, or notifications within your application. Data persists only for the subsequent request by default: $request-

Build a React App With a Laravel Back End: Part 2, React Mar 04, 2025 am 09:33 AM

This is the second and final part of the series on building a React application with a Laravel back-end. In the first part of the series, we created a RESTful API using Laravel for a basic product-listing application. In this tutorial, we will be dev

Simplified HTTP Response Mocking in Laravel Tests Mar 12, 2025 pm 05:09 PM

Laravel provides concise HTTP response simulation syntax, simplifying HTTP interaction testing. This approach significantly reduces code redundancy while making your test simulation more intuitive. The basic implementation provides a variety of response type shortcuts: use Illuminate\Support\Facades\Http; Http::fake([ 'google.com' => 'Hello World', 'github.com' => ['foo' => 'bar'], 'forge.laravel.com' =>

cURL in PHP: How to Use the PHP cURL Extension in REST APIs Mar 14, 2025 am 11:42 AM

The PHP Client URL (cURL) extension is a powerful tool for developers, enabling seamless interaction with remote servers and REST APIs. By leveraging libcurl, a well-respected multi-protocol file transfer library, PHP cURL facilitates efficient execution of various network protocols, including HTTP, HTTPS, and FTP. This extension offers granular control over HTTP requests, supports multiple concurrent operations, and provides built-in security features.

12 Best PHP Chat Scripts on CodeCanyon Mar 13, 2025 pm 12:08 PM

Do you want to provide real-time, instant solutions to your customers' most pressing problems? Live chat lets you have real-time conversations with customers and resolve their problems instantly. It allows you to provide faster service to your custom

Announcement of 2025 PHP Situation Survey Mar 03, 2025 pm 04:20 PM

The 2025 PHP Landscape Survey investigates current PHP development trends. It explores framework usage, deployment methods, and challenges, aiming to provide insights for developers and businesses. The survey anticipates growth in modern PHP versio

See all articles