如何处理用户在浏览器中退出多个选项卡？ [英] How to handle the user logout in browser multiple tab?

问题描述

我使用codeigniter会话来存储用户登录。当用户在多个选项卡中打开时，在一个选项卡中注销时，我想要在用户访问其他选项卡时自动刷新页面。这是可能的吗？

I am using codeigniter session to store user login. When user opens in multiple tab, on logout in one tab , I want the page to be auto refreshed while user visiting the other tab. Is this possible?

推荐答案

刚刚测试了它，和最简单的方法，我可以看到

Just tested it out, and the easiest way I can see (which seems to work in Chrome at least, but may need further testing) is setting a cookie.

注销时执行类似 setcookie（'loggedout'，1）。您还需要在登录时执行相反操作 - unset（$ _ COOKIE ['loggedout']）

On logout do something like setcookie('loggedout',1). You'll also need to do the opposite on login - unset($_COOKIE['loggedout'])

那么你只需要一些简单的Javascript ...

Then you just need some simple Javascript...

function readCookie(name) {
    var nameEQ = escape(name) + "=";
    var ca = document.cookie.split(';');
    for (var i = 0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) === ' ') c = c.substring(1, c.length);
        if (c.indexOf(nameEQ) === 0) return unescape(c.substring(nameEQ.length, c.length));
    }
    return null;
}
window.setInterval(function() {
    if(readCookie('loggedout')==1) {
        window.location.assign('loggedout.html')
        //Or whatever else you want!
    }
},1000)

$ b b

这将检查每秒查看是否设置了cookie。魔术。

That'll check each second to see if the cookie is set. Magic.

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