Import Joomla to your MVC for some reasons

import-joomla.php

<?php
/*
 * Swiftly: Import Joomla for some reasons
 * N.B: Our 'JPATH_BASE' is not in same dir
 * June 05, 2016
*/

if (!defined('_JEXEC')) {
	define( '_JEXEC', 1 );
	define( 'JPATH_BASE', realpath(dirname(__FILE__)) );
	define( 'DS', DIRECTORY_SEPARATOR );
}

require_once ( JPATH_BASE .DS.'includes'.DS.'defines.php' );
require_once ( JPATH_BASE .DS.'includes'.DS.'framework.php' );

$mainframe =& JFactory::getApplication('site');
$mainframe->initialise();