Shulou(Shulou.com)06/03 Report--

This article mainly explains "how to achieve automatic login with php". Friends who are interested may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "how to log in automatically with php".

Php to achieve automatic login methods: 1, in the first login to store the automatic login cookie, as the user automatically log in the next time to verify; 2, in the next login initialization, detect whether the computer has $_ COOKIE ['autoLogin'] data, if there is automatic login.

This article operating environment: windows10 system, php 7, thinkpad T480 computer.

First of all, when the user logs in for the first time, if no login is checked within a week, after the login operation is completed, an automatic login cookie is stored. The cookie can be "$value is the user's" id "plus a" random code "composed of string encrypted data. This random code is stored in the user table in the database and verified the next time the user automatically logs in. It can also be more high-end data, let's make the most of it.

Setcookie ('autoLogin',$value,7*24*3600+time ())

Then, when initializing the next login, first check whether there is $_ COOKIE ['autoLogin'] data in the user's computer. If so, analyze the data before and after decryption to see whether the data stored in the login is really cookie (to prevent forgery).

At this point, I believe you have a deeper understanding of "php how to achieve automatic login", might as well come to the actual operation of it! Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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