$_FILES
Note that the default distribution php.ini files does not contain the 'C' for cookies, due to security concerns.
See http://http://php.net/manual/en/ini.core.php#ini.request-order
$_REQUEST
$_REQUEST — Променливи от HTTP заявката
Дневник на промените
| Версия | Описание |
|---|---|
| 5.3.0 | Въведена е request_order. Тази директива повлиява съдържанието на $_REQUEST. |
| 4.3.0 | Информацията за $_FILES е премахната от $_REQUEST. |
| 4.1.0 | Въведена е $_REQUEST. |
Бележки
Забележка: Това е 'свръхглобална' или автоматично глобална променлива. Това просто означава, че тя е налична във всички обхвати навсякъде из скрипта. Не е нобходимо да правите global $variable;, за да я достъпвате от тялото на функции и методи.
Забележка: При работа на командния ред , argv и argc няма да бъдат включени в масива $_REQUEST. Те са налични в $_SERVER.
Забележка: Променливите в $_REQUEST са предоставени на скрипта посредством входящите механизми GET, POST и COOKIE и следователно биха могли да бъдат променяни от отдалечения потребител, което означава, че на тях не може да се има доверие. Наличието и редът на включване на променливи в този масив се дефинират съгласно конфигурационната директива на PHP variables_order.
Вж. също
- import_request_variables() - Внася GET/POST/Cookie променливи в глобалната област на действие
- Управление на външни променливи
- Разширението филтър
add a note
User Contributed Notes
$_REQUEST
rm at km-it dot de
24-Jan-2012 12:46
mike o.
12-Mar-2010 01:31
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 $_REQUEST array; if that does not exist, then the variables_order directive does. Your distribution's php.ini may exclude cookies by default, so beware.
John Galt
07-Dec-2009 02:36
I wrote a function because I found it inconvenient if I needed to change a particular parameter (get) while preserving the others. For example, I want to make a hyperlink on a web page with the URL http://www.example.com/script.php?id=1&blah=blah+blah&page=1 and change the value of "page" to 2 without getting rid of the other parameters.
<?php
function add_or_change_parameter($parameter, $value)
{
$params = array();
$output = "?";
$firstRun = true;
foreach($_GET as $key=>$val)
{
if($key != $parameter)
{
if(!$firstRun)
{
$output .= "&";
}
else
{
$firstRun = false;
}
$output .= $key."=".urlencode($val);
}
}
if(!$firstRun)
$output .= "&";
$output .= $parameter."=".urlencode($value);
return htmlentities($output);
}
?>
Now, I can add a hyperlink to the page (http://www.example.com/script.php?id=1&blah=blah+blah&page=1) like this:
<a href="<?php echo add_or_change_parameter("page", "2"); ?>">Click to go to page 2</a>
The above code will output
<a href="?id=1&blah=blah+blah&page=2">Click to go to page 2</a>
Also, if I was setting "page" to a string rather than just "2", the value would be urlencode()'d.
<a href="<?php echo add_or_change_parameter("page", "banana+split!"); ?>">Click to go to page banana split!</a>
would become
<a href="?id=1&blah=blah+blah&page=banana+split%21">Click to go to page banana split!</a>
[EDIT BY danbrown AT php DOT net: Contains a bugfix provided by (theogony AT gmail DOT com), which adds missing `echo` instructions to the HREF tags.]
smjg at iname dot com
13-Aug-2009 12:56
Selecting $_GET or $_POST depending on the request method isn't a general solution, since it's possible for an HTTP request to have both posted content and a query string in the URI.
If you want to allow for this possibility, you can use
<?php
$req = array_merge($_GET, $_POST);
?>
or vice versa, depending on which you want to be used in the event of a clash between them.
strata_ranger at hotmail dot com
17-Jul-2008 05:04
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:
}
?>