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PHP: apache_getenv - Manual
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apache_get_versionapache_getenv
(PHP 4 >= 4.3.0, PHP 5)
apache_getenv — Get an Apache subprocess_env variable
说明
string apache_getenv ( string $variable [, bool $walk_to_top ] )
Get an Apache environment variable as specified by variable .
This function requires Apache 2 otherwise it's undefined.
参数
- variable
-
The Apache environment variable
- walk_to_top
-
Whether to get the top-level variable available to all Apache layers.
返回值
The value of the Apache environment variable on success, or FALSE on failure
范例
Example#1 apache_getenv() example
The example above shows how to retrieve the value of the Apache environment variable SERVER_ADDR.
<?php
$ret = apache_getenv ( "SERVER_ADDR" );
echo $ret ;
?> 上例的输出类似于：
42.24.42.240
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