<?php



class Main
{
	function __construct()
	{
		$sub1 = new Sub1();
		$sub2 = new Sub2();
		
		$sub2->doSomething();
	}

}


class Sub1
{

	function somethingElse()
	{
		// blah blah
	}


}


class Sub2
{

	public function doSomething()
	{
		/// call a function in the $sub1 instance??? $sub1->somethingElse();??
	}

}



?>