$_REQUEST
$_REQUEST — HTTP Request 变量
注释
注意:
“Superglobal”也称为自动化的全局变量。这就表示其在脚本的所有作用域中都是可用的。不需要在函数或方法中用 global $variable; 来访问它。
注意:
注意:
由于 $_REQUEST 中的变量通过 GET，POST 和 COOKIE 输入机制传递给脚本文件，因此可以被远程用户篡改而并不可信。这个数组的项目及其顺序依赖于 PHP 的 request_order 和 variables_order 指令的配置。
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用户贡献的备注 4 notes
strata_ranger at hotmail dot com ¶
16 years ago
Don't forget, because $_REQUEST is a different variable than $_GET and $_POST, it is treated as such in PHP -- modifying $_GET or $_POST elements at runtime will not affect the ellements in $_REQUEST, nor vice versa.
e.g:
<?php
$_GET['foo'] = 'a';
$_POST['bar'] = 'b';
var_dump($_GET); // Element 'foo' is string(1) "a"
var_dump($_POST); // Element 'bar' is string(1) "b"
var_dump($_REQUEST); // Does not contain elements 'foo' or 'bar'
?>
If you want to evaluate $_GET and $_POST variables by a single token without including $_COOKIE in the mix, use $_SERVER['REQUEST_METHOD'] to identify the method used and set up a switch block accordingly, e.g:
<?php
switch($_SERVER['REQUEST_METHOD'])
{
case 'GET': $the_request = &$_GET; break;
case 'POST': $the_request = &$_POST; break;
.
. // Etc.
.
default:
}
?>
mike o. ¶
14 years ago
The default php.ini on your system as of in PHP 5.3.0 may exclude cookies from $_REQUEST. The request_order ini directive specifies what goes in the $_REQUEST array; if that does not exist, then the variables_order directive does. Your distribution's php.ini may exclude cookies by default, so beware.
codeblog.pro ¶
4 years ago
In PHP version 7.0 with the default settings.+, $_REQUEST array does not contain cookies.
Luke Madhanga ¶
8 years ago
To access $_POST, $_GET, etc, use the function filter_input(TYPE, varname, filter) to ensure that your data is clean.
Also, I was brought up to believe that modifying superglobals is a BAD idea. I stand by this belief and would recommend you do too备份地址：http://www.lvesu.com/blog/php/reserved.variables.request.php