Function env
Gets an environment variable from available sources, and provides emulation for unsupported or inconsistent environment variables (i.e. DOCUMENT_ROOT on IIS, or SCRIPT_NAME in CGI mode). Also exposes some additional custom environment information.
		
		Package: Cake
Link: http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#env
Copyright: Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
License: License (http://www.opensource.org/licenses/mit-license.php)
Located at Cake/basics.php
	
	Link: http://book.cakephp.org/2.0/en/core-libraries/global-constants-and-functions.html#env
Copyright: Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
License: License (http://www.opensource.org/licenses/mit-license.php)
Located at Cake/basics.php
env( string $key )
Parameters summary
| string | $key | Environment variable name. | 
Returns
- 
				stringEnvironment variable setting.
