Stripe\ApiRequestor::_requestRaw PHP Метод

    private function _requestRaw($method, $url, $params, $headers)
    {
        $myApiKey = $this->_apiKey;
        if (!$myApiKey) {
            $myApiKey = Stripe::$apiKey;
        }
        if (!$myApiKey) {
            $msg = 'No API key provided.  (HINT: set your API key using ' . '"Stripe::setApiKey(<API-KEY>)".  You can generate API keys from ' . 'the Stripe web interface.  See https://stripe.com/api for ' . 'details, or email [email protected] if you have any questions.';
            throw new Error\Authentication($msg);
        }
        $absUrl = $this->_apiBase . $url;
        $params = self::_encodeObjects($params);
        $defaultHeaders = $this->_defaultHeaders($myApiKey);
        if (Stripe::$apiVersion) {
            $defaultHeaders['Stripe-Version'] = Stripe::$apiVersion;
        }
        if (Stripe::$accountId) {
            $defaultHeaders['Stripe-Account'] = Stripe::$accountId;
        }
        $hasFile = false;
        $hasCurlFile = class_exists('\\CURLFile', false);
        foreach ($params as $k => $v) {
            if (is_resource($v)) {
                $hasFile = true;
                $params[$k] = self::_processResourceParam($v, $hasCurlFile);
            } elseif ($hasCurlFile && $v instanceof \CURLFile) {
                $hasFile = true;
            }
        }
        if ($hasFile) {
            $defaultHeaders['Content-Type'] = 'multipart/form-data';
        } else {
            $defaultHeaders['Content-Type'] = 'application/x-www-form-urlencoded';
        }
        $combinedHeaders = array_merge($defaultHeaders, $headers);
        $rawHeaders = array();
        foreach ($combinedHeaders as $header => $value) {
            $rawHeaders[] = $header . ': ' . $value;
        }
        list($rbody, $rcode, $rheaders) = $this->httpClient()->request($method, $absUrl, $rawHeaders, $params, $hasFile);
        return array($rbody, $rcode, $rheaders, $myApiKey);
    }