$_SERVER['PATH_INFO'] 和 $_SERVER['ORIG_PATH_INFO'] 有什么区别? [英] What is the difference between $_SERVER['PATH_INFO'] and $_SERVER['ORIG_PATH_INFO']?

问题描述

$_SERVER['PATH_INFO'] 和 $_SERVER['ORIG_PATH_INFO'] 有什么区别?我如何使用它们?

当我运行 print_r($_SERVER) 时，PATH_INFO 和 ORIG_PATH_INFO 不在数组中.为什么不?如何启用它们?

我已经阅读了关于它们的 PHP 手册，但仍然不理解它们.

解决方案

PATH_INFO 变量仅在您像这样调用 PHP 脚本时才存在:

http://www.example.com/phpinfo.php/HELLO_THERE

它只是.php 脚本之后的/HELLO_THERE 部分.如果你不这样调用 URL，就不会有 $_SERVER["PATH_INFO"] 环境变量.

PORIG_ 前缀有点不常见.PATH_INFO 是一个标准的 CGI 环境变量，不应该加上前缀.你从哪里读到的?(如果您通过 cgi-bin/调用 PHP 解释器，PHP3/PHP4 会出现一些问题 - 但今天几乎没有人有这样的设置.)

参考:http://www.ietf.org/rfc/rfc3875>

What’s the difference between $_SERVER['PATH_INFO'] and $_SERVER['ORIG_PATH_INFO']? How do I use them?

When I run print_r($_SERVER), PATH_INFO and ORIG_PATH_INFO are not present in the array. Why not? How can I enable them?

I have read the PHP manual on them, but still don’t understand them.

解决方案

The PATH_INFO variable is only present if you invoke a PHP script like this:

http://www.example.com/phpinfo.php/HELLO_THERE

It's only the /HELLO_THERE part after the .php script. If you don't invoke the URL like that, there won't be a $_SERVER["PATH_INFO"] environment variable.

The PORIG_ prefix is somewhat uncommon. PATH_INFO is a standard CGI-environment variable, and should never be prefixed. Where did you read that? (There were some issues around PHP3/PHP4 if you invoked the PHP interpreter via cgi-bin/ - but hardly anyone has such setups today.)

For reference: http://www.ietf.org/rfc/rfc3875

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