$baseURL in code igniter 4 code example

Example: public $baseURL codeigniter 4

$base = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off' ? 'https://'.$_SERVER['HTTP_HOST'].dirname($_SERVER['SCRIPT_NAME']) : 'http://'.$_SERVER['HTTP_HOST'].dirname($_SERVER['SCRIPT_NAME']);

defined('BASE') || define('BASE', $base);