How PHP can tell if the current user has logged in elsewhere _php tutorial

How PHP determines that the current user is logged in elsewhere, and that the current user is elsewhere

Source: Http://bbs.lampbrother.net/read-htm-tid-121909-ds-1.html#tpc

Main ideas:
1. Log the user's SessionID when logging in
2. Verify that the logged user SessionID matches the current SessionID when logging on
3. If it is not the same, indicate that you log in elsewhere
For details, please see the demo code with comments inside.

http://www.bkjia.com/PHPjc/938096.html www.bkjia.com true http://www.bkjia.com/PHPjc/938096.html techarticle PHP How to determine that the current user has been logged elsewhere, the current user from elsewhere: http://bbs.lampbrother.net/read-htm-tid-121909-ds-1.html#tpc main ideas: 1. When you log in, the user's ...

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