payment/app/Helper/Efps/Result.php

<?php

declare(strict_types=1);

namespace App\Helper\Efps;

class Result
{
    private $data;

    public function __construct($data)
    {
        $this->data = $data;
    }

    public function isSuccess()
    {
        return $this->data['returnCode'] == '0000';
    }

    public function get($key, $default = null)
    {
        return $this->data[$key] ?? $default;
    }

    public function getCode()
    {
        return $this->data['returnCode'];
    }

    public function getMessage()
    {
        return $this->data['returnMsg'];
    }

    public function getData(array $fields = null)
    {
        $returnData = [];
        if (is_array($fields)) {
            foreach ($fields as $field) {
                $returnData[$field] = $this->data[$field] ?? null;
            }
        } else {
            $returnData = $this->data;
        }
        unset($returnData['returnCode']);
        unset($returnData['returnMsg']);
        unset($returnData['nonceStr']);
        unset($returnData['customerCode']);
        return $returnData;
    }
}