رابط های PHP نحوه استفاده از آنها و اتصال رابط لاراول به سادگی توضیح داده شده است

// app/Contracts/PaymentGatewayInterface.php
namespace App\Contracts;

interface PaymentGatewayInterface {
    public function charge($amount);
}

// app/Services/StripePaymentGateway.php
namespace App\Services;

use App\Contracts\PaymentGatewayInterface;

class StripePaymentGateway implements PaymentGatewayInterface {
    public function charge($amount) {
        // Logic to charge using Stripe
        return "Charged {$amount} using Stripe";
    }
}

// app/Http/Controllers/PaymentController.php
namespace App\Http\Controllers;

use App\Contracts\PaymentGatewayInterface;
use App\Services\StripePaymentGateway;

class PaymentController extends Controller {
    protected $paymentGateway;

    public function __construct(PaymentGatewayInterface $paymentGateway) {
        $this->paymentGateway = $paymentGateway;
    }

    public function charge($amount) {
        return $this->paymentGateway->charge($amount);
    }
}

// routes/web.php
use App\Http\Controllers\PaymentController;
use App\Services\StripePaymentGateway;

Route::get('/charge/{amount}', function ($amount) {
    $paymentGateway = new StripePaymentGateway();
    $controller = new PaymentController($paymentGateway);
    return $controller->charge($amount);
});

// app/Providers/AppServiceProvider.php
namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use App\Contracts\PaymentGatewayInterface;
use App\Services\StripePaymentGateway;

class AppServiceProvider extends ServiceProvider {
    public function register() {
        $this->app->bind(PaymentGatewayInterface::class, StripePaymentGateway::class);
    }

    public function boot() {
        //
    }
}

// app/Http/Controllers/PaymentController.php
namespace App\Http\Controllers;

use App\Contracts\PaymentGatewayInterface;
use App\Services\StripePaymentGateway;

class PaymentController extends Controller {
    protected $paymentGateway;

    public function __construct(PaymentGatewayInterface $paymentGateway) {
        $this->paymentGateway = $paymentGateway;
    }

    public function charge($amount) {
        return $this->paymentGateway->charge($amount);
    }
}

// routes/web.php
use App\Http\Controllers\PaymentController;

Route::get('/charge/{amount}', [PaymentController::class, 'charge']);