apache_getenv

    (PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)

    apache_getenv — 获取 Apache subprocess_env 变量

    说明

    apache_getenv(string $variable, bool $walk_to_top = false): string|false

    获取 variable 指定的环境变量。

    参数

    variable

    Apache 环境变量

    walk_to_top

    是否获取对Apache各层可用的顶层变量

    返回值

    成功时返回 Apache 环境变量值，失败时返回 false

    示例

    示例 #1 apache_getenv() 示例

    该示例显示如何取得 Apache 环境变量 SERVER_ADDR的值。

    <?php
    $ret     = apache_getenv("SERVER_ADDR");
    echo     $ret;
    ?>

    以上示例的输出类似于：

    42.24.42.240

    参见

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    用户贡献的备注 2 notes

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    elhachmi at gmail dot com
    11 years ago
    apache_getenv(key) does not work on an php cgi installation, in this case rather use $_SERVER["REDIRECT_key"]
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    Anonymous
    6 years ago
    This manual page is unclear as to whether it will fetch Apache configuration environment variables set by "SetEnv" (including "SetEnvIf[NoCase]" or "BrowserMatch" e.g.) as the only example given is with a pre-defined CGI interface variable (which is also available via the $_SERVER[] array). If custom Apache runtime configuration variables are indeed fetchable via this interface, let's say so or give an example of such.
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