How to add options using PHP CURL API QIWI?

Question

PHP

Good afternoon!

Here is part of the code:

$data = array(
    'amount' => array(
        "currency" => 'RUB',
        "value" => '1.00'
    ),
    "comment" => "Подписка на услуги",
    "expirationDateTime" => "$date",
    "customer" => array(
        "phone" => "[phone]",
        "email" => "[email protected]",
        "account" => "account-name"
    ),

   // ------ ТУТ НУЖНО ДОБАВИТЬ flags  (вопрос ниже)----- //
);
$data = json_encode($data);

How to write flags correctly? In the API documentation, this is indicated as follows:
"flags": ["CHECK_CARD","BIND_PAYMENT_TOKEN"]

Answer 1

$data = array(
    'amount' => array(
        "currency" => 'RUB',
        "value" => '1.00'
    ),
    "comment" => "Подписка на услуги",
    "expirationDateTime" => "$date",
    "customer" => array(
        "phone" => "[phone]",
        "email" => "[email protected]",
        "account" => "account-name"
    ),
    "flags" => array(
        "CHECK_CARD" ,
        "BIND_PAYMENT_TOKEN"
    ),
);
$data = json_encode($data);