informaticaD4P-2017-omnipay-plugin/src/Message/AbstractResponse.php

<?php

namespace Omnipay\Inforbank\Message;

use Omnipay\Common\Message\AbstractResponse as BaseAbstractResponse;
use Omnipay\Common\Message\RequestInterface;

abstract class AbstractResponse extends BaseAbstractResponse
{
    protected $error;

    public function __construct(RequestInterface $request, $data)
    {
        parent::__construct($request, $data);
        if (!$this->data['success']) {
            $this->error = (string) $this->data['error'];
        }
    }

    public function getError()
    {
        return $this['error'];
    }
}