Online PHP editor | output for iHvKu

<?php abstract class FooBase { private $money; function __construct($money) { $this->money = $money; } function getMoney() { return $this->money; } } class Foo extends FooBase { private $money; function getMoney() { return '$' . parent::getMoney(); } function setMoney($money) { $this->money = $money; } } class Bar extends Foo { private $money; function getMoney() { return '$' . $this->money; } function setMoney($money) { $this->money = $money; } } class Baz extends Foo { protected $money; function getMoney() { return '$' . $this->money; } function setMoney($money) { $this->money = $money; } } echo 'foo'; $foo = new Foo(12345); var_dump($foo->getMoney()); $foo->setMoney(67890); var_dump($foo->getMoney()); echo 'bar'; $bar = new Bar(12345); var_dump($bar->getMoney()); $bar->setMoney(67890); var_dump($bar->getMoney()); echo 'baz'; $baz = new Baz(12345); var_dump($baz->getMoney()); $baz->setMoney(67890); var_dump($baz->getMoney());