The perfect combination of PHP SSO single sign-on and user experience

The perfect combination of PHP SSO single sign-on and user experience

With the rapid development of the Internet, people need to frequently register and register when using various websites and applications. Logging in not only wastes the user's time and energy, but also easily causes the user to forget their account number and password. In order to solve this problem, Single Sign-On (SSO) technology came into being. Sharing user information between multiple related websites or applications enables users to log in at one place and access other applications without logging in, which greatly improves the user experience.

As a scripting language widely used in Web development, PHP is fast, flexible, easy to learn and use. This article will delve into how to use PHP to implement SSO single sign-on, and illustrate it with specific code examples.

1. The principle and process of single sign-on

The implementation of single sign-on can be divided into the following steps:

1. Users access the main site and try to log in ;
2. The main station guides the user to jump to the identity authentication center;
3. The identity authentication center verifies the user's identity and returns an identification of successful authentication;
4. The main station obtains the identification of successful authentication After identification, use the identification to generate encrypted Token information;
5. The main station returns the encrypted Token information to the user's browser;
6. Saves the Token information in the user's browser;
7. When a user accesses a sub-site, the sub-site obtains the Token information and authenticates the identity to the main site;
8. After the main site passes the verification, it returns an identification of successful sub-site authentication;
9. The sub-site determines the identity of the sub-site according to the main site The returned identification of successful authentication enables login-free access.

2. Code example to implement SSO single sign-on

The following is a simple PHP code example for implementing SSO single sign-on:

1. Main site (sso.example.com):

c3a8b3af37a00fb4ee82c0f72910b0aa

2. Sub-site (sub.example.com):

16f9ac810b85b2a427c455fe181c0a05 $token]);

// Verification successful
if ($authResult['success']) {

// 免登录访问子站
// ...

} else {

// 跳转至主站登录页
header('Location: http://sso.example.com/login');
exit;

}

?>

With the above code example, a simple SSO single sign-on system can be implemented. Among them, the main site is responsible for user login, logout, generation of Token information and other operations; the sub-site is responsible for verifying the user's identity to the main site and implementing login-free access based on the verification results.

3. Summary

This article introduces the combination of PHP and SSO single sign-on, and gives specific code examples. By using PHP to implement SSO single sign-on, the user's login experience can be significantly improved, the number of user registrations and logins can be reduced, and user stickiness and satisfaction can be improved. At the same time, SSO single sign-on can also easily share user information, realize data interoperability between various applications, and promote collaborative development of business. We believe that the application of SSO single sign-on can bring better experience and convenience to Internet users.

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