什么时候以及为什么应该使用$ _REQUEST代替$ _GET/$ _POST/$ _COOKIE? [英] When and why should $_REQUEST be used instead of $_GET / $_POST / $_COOKIE?

问题描述

标题中的问题.

$_GET[foo]，$_POST[foo]和$_COOKIE[foo] exist?中的所有三个都包含在$_REQUEST?

And what happens when all 3 of $_GET[foo], $_POST[foo] and $_COOKIE[foo] exist? Which one of them gets included to $_REQUEST?

推荐答案

我不会说.

如果我希望通过各种方法进行设置，我会为每个方法编写代码，以提醒自己我已经这样做了-否则，您可能最终会被覆盖而无法意识到.

If I wanted something to be set via the various methods, I'd code for each of them to remind myself that I'd done it that way - otherwise you might end up with things being overwritten without realising.

它不应该这样工作吗:

$ _ GET =非破坏性操作(排序，记录操作，查询)

$_GET = non destructive actions (sorting, recording actions, queries)

$ _ POST =破坏性操作(删除，更新)

$_POST = destructive actions (deleting, updating)

$ _ COOKIE =琐碎的设置(样式表首选项等)

$_COOKIE = trivial settings (stylesheet preferences etc)

$ _ SESSION =非琐碎的设置(用户名，已登录?，访问级别)

$_SESSION = non trivial settings (username, logged in?, access levels)

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