如何解决PHP项目中支付系统的复杂性？使用SquareAPI可以！

composer require square/square

use Square\SquareClient;
use Square\Payments\Requests\CreatePaymentRequest;
use Square\Types\CashPaymentDetails;
use Square\Types\Currency;
use Square\Types\Money;

$square = new SquareClient();
$response = $square->payments->create(
    request: new CreatePaymentRequest(
        [
            'idempotencyKey' => '4935a656-a929-4792-b97c-8848be85c27c',
            'sourceId' => 'CASH',
            'amountMoney' => new Money([
                'amount' => 100,
                'currency' => Currency::Usd->value
            ]),
            'tipMoney' => new Money([
                'amount' => 50,
                'currency' => Currency::Usd->value
            ]),
            'cashDetails' => new CashPaymentDetails([
                'buyerSuppliedMoney' => new Money([
                    'amount' => 200,
                    'currency' => Currency::Usd->value
                ])
            ]),
        ],
    )
);

use Square\SquareClient;

$square = new SquareClient("SQUARE_TOKEN");

use Square\SquareClient;

$square = new SquareClient(); // Token is read from the SQUARE_TOKEN environment variable.

use Square\SquareClient;
use Square\Environments;

$square = new SquareClient(options: [
  'baseUrl' => Environments::Production->value // Used by default
]);

use Square\SquareClient;

$square = new SquareClient(options: [
  'baseUrl' => 'https://custom-staging.com'
]);

use Square\Types\InvoicePaymentRequest;
use Square\Types\InvoiceRequestType;

$paymentRequest = new InvoicePaymentRequest([
    'requestType' => InvoiceRequestType::Balance->value,
    ...
]);

use Square\Payments\Requests\ListPaymentsRequest;

$payments = $square->payments->list(
    new ListPaymentsRequest([
        'total' => 100,
    ]),
);

foreach ($payments as $payment) {
    echo sprintf(
        "payment: ID: %s Created at: %s, Updated at: %s\n",
        $payment->getId(),
        $payment->getCreatedAt(),
        $payment->getUpdatedAt(),
    );
}

$payments = $square->payments->list(
    request: new ListPaymentsRequest([
        'total' => 100,
    ]),
    options: [
        'timeout' => 1.0,
    ],
);

use Square\Exceptions\SquareApiException;
use Square\Exceptions\SquareException;

try {
    $square->payments->create(...);
} catch (SquareApiException $e) {
    echo 'Square API Exception occurred: ' . $e->getMessage() . "\n";
    echo 'Status Code: ' . $e->getCode() . "\n";
    echo 'Response Body: ' . $e->getBody() . "\n";
    // Optionally, rethrow the exception or handle accordingly.
}

use Square\Utils\WebhooksHelper;

$isValid = WebhooksHelper.verifySignature(
    requestBody: $requestBody,
    signatureHeader: $headers['x-square-hmacsha256-signature'],
    signatureKey: 'YOUR_SIGNATURE_KEY',
    notificationUrl: 'https://example.com/webhook', // The URL where event notifications are sent.
)

use Square\SquareClient;
use Square\Legacy\SquareClient as LegacySquareClient;

$square = new SquareClient();
$legacyClient = new LegacySquareClient();