php $_SERVER['REQUEST_URI'] 和 $_GET['q'] 有什么区别？
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what is the difference between $_SERVER['REQUEST_URI'] and $_GET['q']?
提问by user550265
what is the difference between $_SERVER['REQUEST_URI']and $_GET['q'](which is used in Drupal)?
$_SERVER['REQUEST_URI']和$_GET['q']（在 Drupal 中使用）有什么区别？
回答by Decent Dabbler
Given this example url:
鉴于此示例网址：
http://www.example.com/some-dir/yourpage.php?q=bogus&n=10
http://www.example.com/some-dir/yourpage.php?q=bogus&n=10
$_SERVER['REQUEST_URI']will give you:
$_SERVER['REQUEST_URI']会给你：
/some-dir/yourpage.php?q=bogus&n=10
/some-dir/yourpage.php?q=bogus&n=10
Whereas $_GET['q']will give you:
而$_GET['q']会给你：
bogus
bogus
In other words, $_SERVER['REQUEST_URI']will hold the full request path including the querystring. And $_GET['q']will give you the value of parameter qin the querystring.
换句话说，$_SERVER['REQUEST_URI']将保存包括querystring在内的完整请求路径。而且$_GET['q']会给你参数的值q在查询字符串。
回答by mpdonadio
In the context of Drupal, the difference will depend whether clean URLs are on or not.
在 Drupal 的上下文中，区别将取决于是否启用了干净的 URL。
With them off, $_SERVER['REQUEST_URI']will have the full path of the page as called w/ /index.php, while $_GET["q"]will just have what is assigned to q.
关闭它们后，$_SERVER['REQUEST_URI']页面的完整路径将被称为 w/ /index.php，而$_GET["q"]只会拥有分配给q.
With them on, they will be nearly identical w/o other arguments, but $_GET["q"]will be missing the leading /. Take a look towards the end of the default .htaccess to see what is going on. They will also differ if additional arguments are passed into the page, eg when a pager is active.
启用它们后，它们将几乎相同，$_GET["q"]没有其他参数，但会缺少前导/. 查看默认 .htaccess 的末尾，看看发生了什么。如果将附加参数传递到页面中，例如当寻呼机处于活动状态时，它们也会有所不同。
回答by mario
The PHP manual explains both quite well:
PHP手册很好地解释了两者：
http://php.net/manual/en/reserved.variables.server.php# REQUEST_URI
http://php.net/manual/en/reserved.variables.server.php# REQUEST_URI
http://php.net/manual/en/reserved.variables.get.php# for the $_GET["q"] variable
http://php.net/manual/en/reserved.variables.get.php# 用于 $_GET["q"] 变量
