In PHP payment processing, how do I expose a REST API?

In order to expose a REST API for payment processing using PHP, you need to set up an endpoint that can handle HTTP requests to perform various payment actions like processing transactions, checking payment status, etc. Below is a simple example of how to create a REST API for payment processing in PHP.

['amount' => 100, 'status' => 'completed'], 2 => ['amount' => 200, 'status' => 'pending'] ]; // Handle incoming GET requests if ($_SERVER['REQUEST_METHOD'] === 'GET') { if (isset($_GET['id']) && array_key_exists($_GET['id'], $payments)) { echo json_encode($payments[$_GET['id']]); } else { echo json_encode($payments); } } // Handle incoming POST requests for processing payments else if ($_SERVER['REQUEST_METHOD'] === 'POST') { $data = json_decode(file_get_contents('php://input'), true); $newPaymentId = count($payments) + 1; $payments[$newPaymentId] = ['amount' => $data['amount'], 'status' => 'completed']; echo json_encode(['id' => $newPaymentId, 'status' => 'success']); } else { http_response_code(405); echo json_encode(['error' => 'Method not allowed']); } ?>

REST API payment processing PHP HTTP requests JSON transactions