(PHP 4 >= 4.3.0, PHP 5)
Get an Apache environment variable as specified by variable.
This function requires Apache 2 otherwise it's undefined.
The Apache environment variable
Whether to get the top-level variable available to all Apache layers.
The value of the Apache environment variable on success, or FALSE on failure
例子 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