如果用户退出浏览器或更改页面之前AJAX请求结束，会发生什么 [英] What happens if a user exits browser or change page before AJAX request is over

问题描述

我打电话PHP脚本在AJAX做一些数据库维护。如果用户关闭网页，打回，或者点击一个链接时，将PHP脚本完全执行？有没有办法做到这一点？

I am calling a php script over ajax to do some database maintenance. If the user closes the page, hits back, or clicks a link, will the php script be fully executed? Is there a way to do it?

也许，如果PHP脚本称为 EXEC（）法或类似的东西，这将反过来通过控制台这样调用脚本：

Maybe if the php script called the exec() method or something similar, which would in turn call a script via the console as such:

$ php /var/www/httpdocs/maintenance.php

推荐答案

只要用户代理（浏览器等）已经充分发送请求，服务器的所有需要​​，并会完成请求，并尝试发送回一个响应。

As long as the user agent (browser, etc.) has fully sent the request, the server has all it needs and will complete the request and try to send back a response.

其实，这样的ping命令的行为经常被用于心跳般的保持服务热情，或进行定期维护过程。

In fact, this sort of "pinging" behavior is often used for "heartbeat"-like processes that keep a service warm or perform periodic maintenance.

这篇关于如果用户退出浏览器或更改页面之前AJAX请求结束，会发生什么的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！