php适配器模式(adapter pattern)

下午陪家人和小孩，晚上练起来。

<?php
/*
The adapter pattern allows the interface of an existing class to be used from another
interface, basically, helping two incompatible interfaces to work together by
converting the interface of one class into an interface expected by another class.
*/

class Stripe {
    public function capturePayment($amount) {
        echo $amount . " Stripe_capturePayment<br/>";
    }

    public function authorizeOnlyPayment($amount) {
        echo $amount . " Stripe_authorizeOnlyPayment<br/>";
    }

    public function cancelAmount($amount) {
        echo $amount . " Stripe_cancelAmount<br/>";
    }
}

interface PaymentService {
    public function capture($amount);
    public function authorize($amount);
    public function cancel($amount);
}

class StripePaymentServiceAdapter implements PaymentService {
    private $stripe;

    public function __construct(Stripe $stripe) {
        $this->stripe = $stripe;
    }

    public function capture($amount) {
        $this->stripe->capturePayment($amount);
    }
    public function authorize($amount){
        $this->stripe->authorizeOnlyPayment($amount);
    }
    public function cancel($amount) {
        $this->stripe->cancelAmount($amount);
    }
}

$stripe = new StripePaymentServiceAdapter(new Stripe());
$stripe->authorize(49.99);
$stripe->capture(19.99);
$stripe->cancel(9.99);
?>