<?php

require_once 'welcome2.php';

class Welcome extends Controller {

	function Welcome()
	{
		parent::Controller();	
	}
	
	function index()
	{
		$second  = new Welcome2();
		echo $second->write();
	}
}

<?php

class Welcome2 extends Controller {

	function Welcome2()
	{
		parent::Controller();	
	}
	
	function write()
	{
		return "두번째 컨트롤러 재사용";
	}
}