Passing custom fields from WooCommerce to Stripe Payments

First, your domain must pass the certification test!

One: name the custom field

Notice leading underscore to designate a meta field: _billing_clients_email

Two: Create a code snippet

Click here for instructions to add snippet plugin first

// added by mark edwards 2024-05-22
// 
// 
// https://www.wpservices.com/how-to-get-your-custom-checkout-field-value-in-woocommerce/

add_filter(‘wc_stripe_payment_intent_args’,  function($args, $order) {
    $orderNbr = WC()->session->get(‘order_awaiting_payment’);  
    $order = new WC_Order($orderNbr);

	$args[‘metadata’][‘orderNbr’]			= $orderNbr ;  
    $args[‘metadata’][‘clients_email’]      = $order->get_meta(‘_billing_clients_email’) ; 
    $args[‘metadata’][‘first_name’]         = $order->get_billing_first_name()     ;  // 2024-08-17
	$args[‘metadata’][‘last_name’]          = $order->get_billing_last_name()     ;  // 2024-08-17

    return $args;
}, 10, 2);

DONT FORGET TO RESTART PHP-FPM IF THAT IS HOW PHP IS RUNNING! ! !

Three: Name an endpoint

Last, create an endpoint on server:

Name this identically to the Stripe Endpoint name. Most of this code is provided for you when the endpoint is created!

require ‘vendor/autoload.php’;

// The library needs to be configured with your account’s secret key.

// Ensure the key is kept out of any version control system you might be using.

$stripe = new StripeStripeClient(‘sk_test_XXXXXXXXXXXXXXXXX’);

// This is your Stripe CLI webhook secret for testing your endpoint locally.

$endpoint_secret = ‘whsec_XXXXXXXXXXXXXXXXXXXXXXXXXXXXX’;

$payload = @file_get_contents(‘php://input’);

$sig_header = $_SERVER[‘HTTP_STRIPE_SIGNATURE’];

$event = null;

try {
    error_log(‘’);
    error_log(‘Endpoint Test’);
    error_log(FILE);

  $event = StripeWebhook::constructEvent(
    $payload, $sig_header, $endpoint_secret
  );
    error_log(‘results:’);
                                                   //  too much stuff here!     error_log(print_r($event->data , true));
    error_log(print_r($event->data[‘object’][‘billing_details’][‘email’] , true));
    error_log(print_r($event->data[‘object’][‘billing_details’][‘name’] , true));
    error_log(print_r($event->data->object->metadata->clients_email , true));

} catch(UnexpectedValueException $e) {
  // Invalid payload
  http_response_code(400);
  exit();

} catch(StripeExceptionSignatureVerificationException $e) {
  // Invalid signature
  http_response_code(400);
  exit();

}

// Handle the event

echo ‘Received unknown event type ‘ . $event->type;

http_response_code(200);