https://twitter.com/MarceauKa/status/331438030864912384

gistfile1.php

<?php

class Baz
{
	protected $foo;
	
	public function __construct($foo)
	{
		$this->foo = $foo;
	}
	
	public function __get($property)
	{
		if ($property == 'x')
		{
			return $this->foo->x;
		}
	}
}

$bar = new Baz((object) array('x' => 16));
echo $bar->x ; // 16