如果价值/价格低于或等于20，如何消除一种付款方式

Question

我有这个用于MercadoPago付款网关的库，并且我试图消除价值/价格低于或等于20的付款类型ID“票”形式的付款选项。

以下是官方文档（巴西）https://www.mercadopago.com.ar/developers/en/guides/resources/localization/payment-methods/

已经做的是使用这段代码从付款选项中删除“ Paypal”

 $preference->payment_methods = array(
        "excluded_payment_types" => array(
                                array("id" => "digital_wallet")
                        ),
        "installments" => 12
    );

完整代码：

<?php defined('BASEPATH') OR exit('No direct script access allowed');
require_once 'mercadopago/autoload.php';


class mercadopagoapi{

    public function __construct($mercadopago_access_token = null) {
        MercadoPago\SDK::setAccessToken($mercadopago_access_token);

    }


    public function create_payment($data = array()){

        try {
            $amount = $data['currency_code'];
            // Create a preference object
            $preference        = new \MercadoPago\Preference();
            // Create an item in the preference
            $item              = new \MercadoPago\Item();
            $item->title       = $data['description'];
            $item->quantity    = 1;
            $item->unit_price  = $data['amount'];
            $preference->items = array($item);
            $orderID           = $data['order_id'];
            $backUrl           = $data['backUrl'].'?paymentOption=mercadopago&order_id='.$orderID .'&amount=$amount';
                        $backUrlFailure          = 'https:/example.com/';

                        // Block PayPal
            $preference->payment_methods = array(
                "excluded_payment_types" => array(
                                        array("id" => "digital_wallet")
                                ),
                "installments" => 12
            );
                        
            // Back Urls
                        $preference->back_urls = array(
                                "success" => $backUrl,
                                "failure" => $backUrlFailure,
                                "pending" => $backUrl
                        );

            $ipnUrl = $data['ipnUrl'].'?paymentOption=mercadopago-ipn';
            $preference->notification_url = $ipnUrl;
            $preference->auto_return = "approved";
            $preference->save();

            // Create a customer object
            $payer = new \MercadoPago\Payer();
            // Create payer information
            $payer->name = $data['email'];
            $payer->email = $data['email'];
            $payer->address = array(
                "street_name" => 'Av. Brig. Faria Lima'
            );

            // Check if test mode true or false
            // and set redirect url as per
            if ($data['mode'] == 'TEST') {
                $redirectUrl = $preference->sandbox_init_point;
            } else {
                $redirectUrl = $preference->init_point;
            }
            return (object)[
                'status'        => 'success',
                'id'            => $preference->id,
                'redirect_url'  => $redirectUrl
            ];
        } catch (Exception $e) {
            return [
                'status'   => 'error',
                'message'  => $e->getMessage()
            ];
        }

    }

    /**
     *
     * @param  string $ordderData - Order ID
     * @param  string -$stripeToken - Stripe Token
     *
     * request to Stripe checkout
     *---------------------------------------------------------------- */
    public function prepareIpnRequestData($requestData)
    {
        $merchant_order = null;

        switch($requestData["topic"]) {
            case "payment":
                $payment = \MercadoPago\Payment::find_by_id($requestData["id"]);
                // Get the payment and the corresponding merchant_order reported by the IPN.
                $merchant_order = \MercadoPago\MerchantOrder::find_by_id($payment->order->id);
                break;
            case "merchant_order":
                $merchant_order = \MercadoPago\MerchantOrder::find_by_id($requestData["id"]);
                break;
        }

        $paid_amount = 0;
        foreach ($merchant_order->payments as $payment) {
            if ($payment['status'] == 'approved'){
                $paid_amount += $payment['transaction_amount'];
            }
        }

        $status = $message = '';
        // If the payment's transaction amount is equal (or bigger) than the merchant_order's amount you can release your items
        if($paid_amount >= $merchant_order->total_amount){
            if (count($merchant_order->shipments)>0) { // The merchant_order has shipments
                if($merchant_order->shipments[0]->status == "ready_to_ship") {
                    $status = 'total_paid';
                    $message = "Totally paid. Print the label and release your item.";
                }
            } else { // The merchant_order don't has any shipments
                $status = 'total_paid';
                $message = "Totally paid. Release your item.";
            }
        } else {
            $status = 'not_paid';
            $message = "Not paid yet. Do not release your item.";
        }

        header("HTTP/1.1 200 OK");
        return [
            'status'    => $status,
            'message'   => $message,
            'raw_data'  => $merchant_order
        ];
    }

    public function get_id_details($data_payment = "") {
        $merchant_order = null;
        $merchant_order = \MercadoPago\MerchantOrder::find_by_id($data_payment->merchant_order_id);
        if (!isset($merchant_order)) {
            $result = [
                'status'    => 'canceled',
            ];
        }
        foreach ($merchant_order->payments as $payment) {
            if ($payment->id == $data_payment->collection_id) {
                if ($payment->status == "approved") {
                    $result = [
                        'status'    => 'completed',
                        'data'      => $payment
                    ];
                }else{
                    $result = [
                        'status'    => 'canceled',
                        'data'      => $payment
                    ];
                }

            }else{
                $result = [
                    'status'    => 'canceled',
                ];
            }
        }
        return (object)$result;
    }
}

在付款网关页面上具有所有付款选项的图像，带有红色标记的图像是我要在价值/价格低于或等于20时取消的图像。