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

apache_setenv() - 设置 Apache 子进程环境变量
getenv() - 获取单个或者全部环境变量
超全局变量

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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.