<?php abstract class WalletBase { private $money; function __construct($money) { $this->money = $money; } function getMoney() { return $this->money; } } class Wallet extends WalletBase { private $money; function getMoney() { return '$' . parent::getMoney(); } function getMyMoney() { return '$' . $this->money; } function setMoney($money) { $this->money = $money; } } $wallet = new Wallet(12345); var_dump($wallet->getMoney()); var_dump($wallet->getMyMoney()); $wallet->setMoney(67890); var_dump($wallet->getMoney()); var_dump($wallet->getMyMoney());
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