I am implementing payment with the pagseguro API, everything works perfectly, the problem is that I do not want to offer installment or freight, I have these variables that I move to an array (it sends the payment data), I already I tried removing it from the array, but it gives error, example of variables:
$shippingCost = '10.00'; //Frete
$installmentQuantity = 3; // Quantidade de Parcelas com Juros
$noInterestInstallmentQuantity = 3; // Quantidade de Parcelas sem Juros
$installmentValue = '30.00'; // Valor das Parcelas