如何检测用户是否在PHP中离开页面 [英] How to detect if a user leaves a page in PHP

问题描述

我希望在用户离开特定页面时执行此功能。此函数将基本上更改数据库中某列内的所有数据。因此，如果用户离开此页面，我希望系统执行此功能。有没有办法检测用户是否已离开页面。

There is this function which i want to execute in case the user leaves a particular page. This function will basically change all of the data within a certain column in my database. So in case the user leaves this page, i want this function to be performed by the system. Is there a way to detect if the user already left the page.

谢谢！

推荐答案

100％可靠，不，它是不可能。由于离开特定页面是客户端操作，因此您无法控制客户端执行的操作。您可以通过Javascript注册 onbeforeunload 处理程序，并希望客户端浏览器支持它。但同样，对此的支持并不普遍。

With 100% reliability, no, it's not possible. Since leaving a particular page is a client-side operation, you have 0 control over what the client does. You can register an onbeforeunload handler via Javascript and hope that the client browser supports it. But again, support for this isn't universal.

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