Object Oriented PHP

<?php
	class Box
	{
	  var $contents;

	  function Box($contents) {
	    $this->contents = $contents;
	  }

	  function get_whats_inside() {
	    return $this->contents;
	  }
	}

?>

$this->contents = $contents;
return $this->contents;

$this->contents = $contents;
return $this->contents;