关闭浏览器后清除缓存 - symfony2

Question

I'm using Symfony2 and I would like to logout the user after he closes the browser.

I've changed the cookie_lifetime to 0 inside of the config.yml, but still not working.

The idea is:

• if the user doesn't use the REMEMBER ME, I would like to ask him to login in case of he close the browser and open again.

Answer 1

I found that there's no really reliable way check wether the browser-window/tab has been closed even if you use a cookie lifetime of 0 due to the way some browsers handle the cookies.

However another - obviously not always reliable - way to check wether the window/tab was closed is using JavaScript's unload events.

The combination of both should give you the best results.

Examples - vanilla JavaScript:

window.onbeforeunload = function(){
  // send ajax request to invalidate the session
};

... or ...

window.unload = function(){
  // send ajax request to invalidate the session
};

Example - jQuery:

$(window).bind('beforeunload', function(){
  // send ajax request to invalidate the session
});

... or ...

$(window).unload(function(){
  // send ajax request to invalidate the session
});

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More information can be found in this question .

Answer 2

I assume you are using Chrome browser. Chrome has a problem with clearing such cookies (see the discussion )

Other browsers (FF, Safari) works fine and deletes cookies when browser closes, try it youself.