CodeIgniter - Best Place To Declare Global Variable
Answer : There is a file in /application/config called constants.php I normally put all mine in there with a comment to easily see where they are: /** * Custom defines */ define('blah', 'hello mum!'); $myglobalvar = 'hey there'; After your index.php is loaded, it loads the /core/CodeIgniter.php file, which then in turn loads the common functions file /core/Common.php and then /application/constants.php so in the chain of things it's the forth file to be loaded. I use a "Globals" class in a helper file with static methods to manage all the global variables for my app. Here is what I have: globals_helper.php (in the helpers directory) <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); // Application specific global variables class Globals { private static $authenticatedMemberId = null; private static $initialized = false; private static function initialize() { ...