Client side update - PHP / ASP - email inbox

Question

In gmail, I see that the inbox is automatically updated when an email is arrives. How is it possible in PHP or ASP to handle such sort of updating client side website from the server? I guess in the browser chat it is the same process. Thanks.

Answer 1

这称为AJAX（异步JavaScript和XML） ，其中客户端脚本在不完全刷新页面的情况下进行请求，然后根据返回的响应更改页面部分。