How does the use of third-party payment processors like PayPal or Firstgate impact the development of an online shop in PHP?

Using third-party payment processors like PayPal or Firstgate simplifies the payment process for online shops by handling secure transactions and providing a trusted platform for customers to make payments. To integrate these payment processors into an online shop developed in PHP, you can utilize their respective APIs to send payment requests, receive payment confirmations, and handle any errors that may occur during the transaction process. 

// Example code snippet for integrating PayPal payment processing in PHP

// Include PayPal SDK
require 'paypal-sdk-php/autoload.php';

// Set up PayPal API credentials
$apiContext = new \PayPal\Rest\ApiContext(
    new \PayPal\Auth\OAuthTokenCredential(
        'CLIENT_ID',
        'CLIENT_SECRET'
    )
);

// Create payment request
$payment = new \PayPal\Api\Payment();
$payment->setIntent('sale')
    ->setPayer(
        new \PayPal\Api\Payer(['payment_method' => 'paypal'])
    )
    ->setTransactions([
        (new \PayPal\Api\Transaction())
            ->setAmount(
                new \PayPal\Api\Amount(['total' => '10.00', 'currency' => 'USD'])
            )
    ])
    ->setRedirectUrls(
        new \PayPal\Api\RedirectUrls([
            'return_url' => 'http://example.com/payment/success',
            'cancel_url' => 'http://example.com/payment/cancel'
        ])
    );

// Create payment
try {
    $payment->create($apiContext);
    $approvalUrl = $payment->getApprovalLink();
    header("Location: $approvalUrl");
} catch (\PayPal\Exception\PayPalConnectionException $ex) {
    echo $ex->getData();
}

Keywords

Third-party payment processors PayPal Firstgate online shop development PHP.

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