PHP的Ajax和重定向 [英] PHP- Ajax and Redirect

问题描述

我有一个jquery Ajax请求发生在页面上。在PHP端我检查会话是否积极，做事。如果会话处于非活动状态，我想将用户重定向到另一个页面在PHP（头重定向）。我该怎么做了。

i have a jquery Ajax request happening on a page. On php side i am checking if the session is active and doing something. If the session is not active i want to redirect the user to another page in php(header redirect). how do i do it.

我知道如何去实现它在JavaScript（即如果session_fail然后改变了window.location但有东西，我可以在PHP做/ CakePHP的

I know how to achieve it in javascript(i.e if session_fail then change window.location but is there something that i can do in php/cakephp

推荐答案

如果我知道你要发生什么事情呢，这是我如何实现它。它的原型，而不是jQuery的，但它不应该带你长的翻译：

If I understand what you want to happen then this is how I'm implementing it. It's in Prototype instead of jQuery but it shouldn't take you long to translate:

new Ajax.Request('process.php', {
    on401: function(response) {
        var redirect = response.getHeader('Location');
        document.location = redirect;
    }
});

在你的PHP，输出如果会话处于非活动状态如下：

In your PHP, output the following if the session is inactive:

header('Location: http://example.com/login.php', true, 401);
exit;

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