全局变量的$_REQUEST，$_POST，$_GET 这三者有什么区别么?

Answer 1

What is the difference between $_REQUEST, $_POST and $_GET of global variables? - PHP Chinese website Q&A - What is the difference between $_REQUEST, $_POST and $_GET of global variables? - PHP Chinese website Q&A

Come around and watch and learn.

Answer 2

可以去看下下面的这两节课程，里面有详细介绍

PHP开发基础教程之$_GET变量：http://www.php.cn/code/169.html

PHP开发基础教程之$_POST：http://www.php.cn/code/170.html