查看 $_GET 值的来源 - php

Question

I have a question on how to know where this $_GET value come from

$book = isset($_GET['book']) ? $_GET['book'] : null;

The problem is that this site that i am working with, has too many pages and its hard to find it, im trying to solve an error dealing with the $_GET value but first I need to know where it is comming from. Any suggestion? Thanks

Answer 1

手动搜索页面并在 php 文件中对其进行评论，这是我能想到的最好方法，这就是为什么您可以用那里的语言进行注释而不是一无所获...

Answer 2

With $_SERVER["HTTP_REFERER"] you will get the URL of the page that was opened before getting to your actual page. Use this to know where the people come from.