Hi I need help I am stuck on passing my array controllers here is what I have done but is not picking up array in codeigniter.

Code:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Home extends CI_Controller {

	public function index() {

		if (file_exists('views/theme' . 'default/template/common/home.tpl')) {
    		$this->load->view('theme'. 'default/template/common/home.tpl');
		}
		else {
		    $this->load->view('../default/template/common/home.tpl');
		}

		$this->children = array(
		'common/footer',
		'common/header'
		);
	}
}