Professional PHP5 code for this book

								require_once('class.Event_Handler.php');								class handler_Edit extends Event_Handler 				{				   private $handle;				   				   function __construct($event_handle){				      $this->handle = $event_handle;				   }				         				   function handled_event(){				      echo "This is event $this->handle, which is now handled - no kidding! ";				   }				}				?>