php - 请求的来源

Question

如何获取提交请求的网址。我试过 $_SERVER['REQUEST_URI'];但这给了我目标网址而不是源网址。是否可以获取来源？

Answer 1

您正在寻找$_SERVER['HTTP_REFERER'];

注意:

The address of the page (if any) which referred the user agent to the current page. This is set by the user agent. Not all user agents will set this, and some provide the ability to modify HTTP_REFERER as a feature. In short, it cannot really be trusted.