composer require jrazer/wooppay dev-master
$wooppay = new \jRazer\Wooppay\WooppayClient(
'https://www.wooppay.com/api/xml',
'username',
'password'
);
$invoice = $wooppay->createInvoice(...);
$operationUrl = $invoice->operationUrl;
$operationId = $invoice->operationId;
$status = $wooppay->getOperationStatus($operationId);
if($status == \jRazer\Wooppay\WooppayClient::STATUS_DONE) {
\jRazer\Wooppay\WooppayClient::sendCompleteResponse();
}