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Prior to php 4.1. there were no $_POST, $_GET, etc. superglobal arrays, but there were a bunch of other superglobals, like $HTTP_POST_VARS, $HTTP_GET_VARS and so on. The guide mentions this in the forms chapter but there is a typo (repeated several times 🙂 ) so I thought I should mention it.

在PHP 4.1之前。 没有$ _POST，$ _ GET等超全局数组，但是还有很多其他超全局数组，例如$ HTTP_POST_VARS，$ HTTP_GET_VARS等。 指南在表单一章中提到了这一点，但是有一个错字(重复了🙂次)，所以我想我应该提一下。

The guide talks about these older vars with an underscore before the name, like $_HTTP_POST_VARS, $_HTTP_GET_VARS and so on which is not true. The correct names are $HTTP_POST_VARS, $HTTP_POST_VARS and so on, without the underscores.

该指南讨论了这些较旧的var，其名称前带有下划线，例如$ _HTTP_POST_VARS，$ _ HTTP_GET_VARS等，但这是不正确的。 正确的名称是$ HTTP_POST_VARS，$ HTTP_POST_VARS等，不带下划线。

BTW, a trick if you want use old code, written prior to 4.1.0. on newer php versions is to use something like: < ?php $_GET = &$HTTP_GET_VARS; $_POST = &$HTTP_POST_VARS; $_SERVER = &$HTTP_SERVER_VARS; ?>

顺便说一句，这是一个技巧，如果您想使用旧代码，请在4.1.0之前编写。 在较新的php版本上，则使用类似以下的内容：<？php $ _GET =＆$ HTTP_GET_VARS; $ _POST =＆$ HTTP_POST_VARS; $ _SERVER =＆$ HTTP_SERVER_VARS; ？>

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翻译自: https://www.phpied.com/old-superglobals/

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