php man page for apache_getenv

APACHE_GETENV(3)							 1							  APACHE_GETENV(3)

apache_getenv - Get an Apache subprocess_env variable

SYNOPSIS
       string apache_getenv (string  $variable, [bool  $walk_to_top = false])

DESCRIPTION
	Retrieve an Apache environment variable specified by $variable.

	This function requires Apache 2 otherwise it's undefined.

PARAMETERS
	      o $variable
		- The Apache environment variable

	      o $walk_to_top
		- Whether to get the top-level variable available to all Apache layers.

RETURN VALUES
	The value of the Apache environment variable on success, or FALSE on failure

EXAMPLES
       Example #1

	      apache_getenv(3) 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;
	      ?>

	      The above example will output something similar to:

	      42.24.42.240

SEE ALSO
       apache_setenv(3), getenv(3), Superglobals.

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