$_COOKIE

$HTTP_COOKIE_VARS [deprecated]

$_COOKIE -- $HTTP_COOKIE_VARS [deprecated] — HTTP Cookies

Описание

An associative array of variables passed to the current script via HTTP Cookies.

$HTTP_COOKIE_VARS contains the same initial information, but is not a superglobal. (Note that $HTTP_COOKIE_VARS and $_COOKIE are different variables and that PHP handles them as such)

Список изменений

Версия	Описание
4.1.0	Introduced `$_COOKIE` that deprecated `$HTTP_COOKIE_VARS`.

Примеры

Пример #1 $_COOKIE example

<?php
echo 'Hello ' . htmlspecialchars($_COOKIE["name"]) . '!';
?>

Assuming the "name" cookie has been set earlier

Результатом выполнения данного примера будет что-то подобное:

Hello Hannes!

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.

Смотрите также

$_ENV

$php_errormsg

Предопределённые переменные

PHP Manual

User Contributed Notes
$_COOKIE

Chris Watson
30-Sep-2009 12:18

The value of $_COOKIE is determined by the content of cookies received in the user agent's request.

                

                If you set a cookie (ie send it to the browser), it won't be sent back until the next request and so the data won't be present in $_COOKIE.

Sam Yong - hellclanner at live dot com
05-Sep-2009 02:27

Take note that in IE when it's really weird that when you do something like this:

                

                <?php

                
 // import config/constants

                
 session_set_cookie_params((time()+$_SITE['session_length']));
 session_start();
 $sess = session_name();
 setcookie($sess, $_COOKIE[$sess], time() + $_SITE['session_length']);

                
 // .. rest of the code

                
 ?>


                It fails. the session cookie is not stored totally.

                

                Instead, doing this would work:

                

                <?php

                
 // import config/constants

                
 session_set_cookie_params((time()+$_SITE['session_length']));
 session_start();
 $sess = session_name();
 setcookie($sess, session_id(), time() + $_SITE['session_length']);

                
 // .. rest of the code

                
 ?>