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.
$_REQUEST
(No version information available, might be only in CVS)
$_REQUEST — Данные HTTP-запроса
Описание
Ассоциативный массив, который по умолчанию содержит данные переменных $_GET, $_POST и $_COOKIE.
Список изменений
| Версия | Описание |
|---|---|
| 5.3.0 | Добавлена директива request_order. Она позволяет контролировать содержимое переменной $_REQUEST. |
| 4.3.0 | Данные переменной $_FILES более не включаются в $_REQUEST. |
| 4.1.0 | Добавлена переменная $_REQUEST. |
Примечания
Замечание: This is a 'superglobal', or automatic global, variable. This simply means that it is available in all scopes throughout a script. There is no need to do global $variable; to access it within functions or methods.
Замечание: При работе в командной строке, переменные argv и argc не включаются в $_REQUEST, они присутствуют в массиве $_SERVER.
Замечание: Данным, которые были переданы в скрипт посредством методов GET, POST или в COOKIE нельзя доверять. Их наличие и порядок добавления данных в соответствующие массивы контролируется директивой variables_order.
Смотрите также
- import_request_variables() - Импортирует переменные GET/POST/Cookie в глобальную область видимости
- Работа с внешними данными
- Функции фильтрации данных
User Contributed Notes
$_REQUEST
$_REQUEST
mike o.
12-Mar-2010 12:31
12-Mar-2010 12:31
John Galt
07-Dec-2009 01:36
07-Dec-2009 01:36
I wrote a function because I found it inconvenient if I needed to change a particular parameter (get) while preserving the others. For example, I want to make a hyperlink on a web page with the URL http://www.example.com/script.php?id=1&blah=blah+blah&page=1 and change the value of "page" to 2 without getting rid of the other parameters.
<?php
function add_or_change_parameter($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 10:56
13-Aug-2009 10:56
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 03:04
17-Jul-2008 03:04
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:
}
?>