<?php
 spl_autoload_register(function($class_name){
  include $class_name .'.php';
 });

 $obj = new Manusia();
 echo $obj->nama = 'Sri';
 echo $obj->bersuara();
 echo "<br>";

 $obj2 = new HewanPeliharaan('Bebekku','Herbivora','Rumput');
 $obj2->bersuara();


 ?>