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This article mainly explains "how to set up php to have only one user online". Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "how to set php to have only one user online"!

Php setting there is only one user online method: 1, add a field in the user table to store the unique string generated by session_id (); 2, the string is stored in the field when the user logs in for the first time; 3, the value of this field is covered by a new string; 4, the judgment can be achieved in the parent class construction method.

The operating environment of this paper: Windows7 system, PHP7.1, Dell G3.

How to set php to have only one user online?

1. Using the session_id () function

2. Add fields to the user table to store the unique string generated by session_id ()

3. User 1 will store the string in the field when logging in for the first time

4. When user 1 logs in here, there will be a new string to overwrite this field value.

5. The parent construction method determines whether the unique string queried by the user logged in in session id is = = session_id ().

6. If the session is not equal, the user will skip to the login page when operating the page.

At this point, I believe you have a deeper understanding of "how to set up php to have only one user online". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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