<?php

	class test1 
	{
		public $test = 'Fail';
		private $obj;
		
		public function __construct()
		{
			$this->obj = new test2($this);
		}
	}
	
	class test2
	{
		public function  __construct($ref_obj)
		{
			$ref_obj->test = 'win';
		}
	}
	
	
	$test = new test1();
	echo $test->test;