Auto logout jquery or what? [closed]

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I want to make an auto-logout system for my site for if someone unexpectetly closes browser or shuts-down computer so... what is the best way to make that system? im using php on my site for everything. thanks!

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You can store your user's session datas via $_SESSION If user close browser, user's session datas will be removed.

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if you unexpectedly shut down the browser or client system, the server will remain blissfully unaware of the event. Ultimately, the session will expire and the problem should cease to be a problem.

The only js-based autologout would be like a timeout, where after a certain period of inactivity, the client would redirect to the server's logout url... but of course this requires the client machine to be online.

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php sessions are the way to go. By default: if someone closes their browser they are closing the session, and a timeout can be placed on the session so that inactive sessions are timed out, there is a default time-out of (someone correct me!) about 20 minutes.

But I guess from your level that you are confusing a number of concepts, and you might like to try to think about what it is you are trying to 'prevent'. Security is a much more complex subject area and "auto-log out" is just skirting around the edge of the subject.