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How to develop third-party login in PHP?

May 12, 2023 am 08:27 AM
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How to develop third-party login in PHP?

With the rise of Web2.0, the demand for third-party login is also increasing, such as WeChat/QQ/Weibo and other login methods, which avoid users’ cumbersome registration process and improve user registration conversion Rate. This article will develop and implement third-party login for PHP language.

1. Obtain third-party login authorization

The implementation of third-party login must rely on the authorization system. For example, there are three WeChat authorization methods: the first is the WeChat webpage authorization mode, the second is to obtain the user's openid through the WeChat public account menu, and the third is to obtain the user's openid by scanning the QR code with parameters. The authorization methods of QQ, Weibo, etc. are similar, so I won’t go into details here.

2. Store third-party authorization information

After the authorization is completed, the authorization information (such as: access_token, openid, Weibo returns uid), this information needs to be saved in the database ( It is recommended to use redis cache for easy access). It can be bound to a third-party platform based on openid or uid to avoid the problem of repeated login.

3. Build the login system logic

We use the information returned after the third-party login is completed as the user login information. Based on the openid or uid, we determine whether the current user has already bound an account. If it has already been bound, If it is determined, then log in to the system directly; if the account has not been bound, then you need to register. You can generate an account for the user by default, or require the user to manually enter the user name and password.

4. Implement login

According to the previous logic, user login is implemented. The specific implementation can be implemented using session or JWT, etc., which will not be described here.

5. Authorization Expiration Processing

The authorized access_token will expire after a period of time, and refresh_token needs to be used to refresh it to maintain the validity of the authorization. Therefore, we need to monitor this authorization information and update it in time once it expires.

6. Security Control

During the development process of third-party login, you need to pay attention to security issues. For example, during the establishment process, how to ensure data encryption security, how to verify codes, anti-crawlers and other measures are all issues that need to be considered.

Summary

Through the above introduction, it can be seen that third-party login development is not difficult and the implementation process is also very clear, but some security issues should be paid attention to. Only on the premise of ensuring security can the user registration conversion rate be better improved.

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