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    $_COOKIE

    $HTTP_COOKIE_VARS [deprecated]

    (PHP 4 >= 4.1.0, PHP 5)

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

    說明

    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)

    更新日誌

    版本 說明
    4.1.0 Introduced $_COOKIE that deprecated $HTTP_COOKIE_VARS.

    範例

    Example #1 $_COOKIE example

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

    Assuming the "name" cookie has been set earlier

    上例的輸出類似於：

    Hello Hannes!

    註釋

    Note:

    "Superglobal" 也稱為自動的全域變數。這表示在腳本的所有範圍(scope)中都是可用的。不需要在函式或方法中用 global $variable; 來存取它。

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    User Contributed Notes 4 notes

    up
    62
    kiril (at) atern (dot) us
    7 years ago
    To clarify the previously posted note:

    Dots (.) and spaces ( ) in cookie names are being replaced with underscores (_).
    up
    63
    k dot andris at gmail dot com
    8 years ago
    beware, dots (.) in cookie names are replaces by underscores (_)
    up
    0
    axodjakov at gmail dot com
    2 years ago
    $_COOKIE returns an array if there are more than one cookie saved under the given key.
    up
    -16
    alexander-schranz at NO_SPAM dot hotmail dot com
    6 years ago
    Cookies with the same name the first cookie is used. Clients will send cookies with longer path before cookies with shorter path. This comes from RFC 6265 which says "Cookies with longer paths are listed before cookies with shorter paths.". So you get the best matching cookie for your current request.
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