CashBill transfer & paysafecard

Base:

$cashbill = $payment->online(
    new CashBillPayment(
        'shopId', 
        'shopKey', 
        CashBillPayment::ENVIRONMENT_TEST OR CashBillPayment::ENVIRONMENT_PRODUCTION
    )
);

Initiate payment:

$cashbill->setTitle('(required) Payment title (eg. company name)');
$cashbill->setAmount(1.23); //required
//Other setters are optional
$cashbill->setDescription('description');
$cashbill->setAdditionalData('yourCustomData');
$cashbill->setReturnUrl('https://google.com');
$cashbill->setNegativeReturnUrl('https://google.com');
$cashbill->setEmail('[e-mail]');
$cashbill->setPaymentChannel('paymentChannel'); //set paysafecard to use paysafecard
$cashbill->setFirstname('firstname');
$cashbill->setSurname('surname');
$cashbill->setCurrency('currency (default: PLN)');
$cashbill->setReferer('refererCode');
$cashbill->setLanguage('languageCode (default: pl)');

$cashbillPayment = $cashbill->generatePayment();
$cashbillPayment->getTransactionId(); //transaction id
$cashbillPayment->getTransactionUrl(); //transaction url

Get transaction info:

$cashbill->getTransactionInfo('transactionId');
/*
    Response is an object with data visible in CashBill's documentation
    https://www.cashbill.pl/download/dokumentacje/Platnosci/Platnosci_CashBill_2.4.pdf
    (point 3.3, page 17)
*/

Set redirect urls:

$cashbill->setReturnUrl('https://google.com');
$cashbill->setNegativeReturnUrl('https://google.com');
$cashbill->setRedirectUrls('transactionId');