<?php
// Create BankIDService
$bankIDService = new BankIDService(
    'https://appapi2.test.bankid.com/rp/v4?wsdl',
    ['local_cert' => 'PATH_TO_TEST_CERT.pem'],
    false
);

// Signing. Step 1 - Get orderRef
$response = $bankIDService->getSignResponse('PERSONAL_NUMBER', 'Test user data');

// Signing. Step 2 - Collect orderRef. 
// Repeat until $collectResponse->progressStatus == CollectResponse::PROGRESS_STATUS_COMPLETE
$collectResponse = $bankIDService->collectResponse($response->orderRef);
if($collectResponse->progressStatus == CollectResponse::PROGRESS_STATUS_COMPLETE) {
    return true; //Signed successfully
}

// Authorize. Step 1 - Get orderRef
$response = $bankIDService->getAuthResponse('PERSONAL_NUMBER');

// Authorize. Step 2 - Collect orderRef. 
// Repeat until $authResponse->progressStatus == CollectResponse::PROGRESS_STATUS_COMPLETE
$authResponse = $bankIDService->collectResponse($response->orderRef);
if($authResponse->progressStatus == CollectResponse::PROGRESS_STATUS_COMPLETE) {
    return true; //Authorized
}