What are the typical steps involved in processing orders and transactions in PHP when working with payment gateways?

When processing orders and transactions in PHP with payment gateways, the typical steps involved include: 1. Collecting and validating user input such as payment details and order information. 2. Sending the payment details to the payment gateway for processing. 3. Handling the response from the payment gateway, which may include success or failure messages. 4. Updating the order status and database records based on the payment gateway response. 

// Step 1: Collect and validate user input
$paymentAmount = $_POST['payment_amount'];
$paymentMethod = $_POST['payment_method'];
$orderID = $_POST['order_id'];

// Step 2: Send payment details to the payment gateway
// Code to interact with payment gateway API

// Step 3: Handle response from payment gateway
if ($paymentSuccess) {
    // Update order status and database records
    $orderStatus = 'paid';
    $paymentID = $paymentGatewayResponse['payment_id'];
    // Code to update order status and database records
} else {
    // Handle payment failure
    $errorMessage = $paymentGatewayResponse['error_message'];
    // Code to handle payment failure
}

Keywords

payment gateways order processing transactions PHP functions error handling

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