Abraham\TwitterOAuth\TwitterOAuth::request PHP Method

    private function request($url, $method, $authorization, array $postfields)
    {
        /* Curl settings */
        $options = [CURLOPT_CAINFO => __DIR__ . DIRECTORY_SEPARATOR . 'cacert.pem', CURLOPT_CONNECTTIMEOUT => $this->connectionTimeout, CURLOPT_HEADER => true, CURLOPT_HTTPHEADER => ['Accept: application/json', $authorization, 'Expect:'], CURLOPT_RETURNTRANSFER => true, CURLOPT_SSL_VERIFYHOST => 2, CURLOPT_SSL_VERIFYPEER => true, CURLOPT_TIMEOUT => $this->timeout, CURLOPT_URL => $url, CURLOPT_USERAGENT => $this->userAgent];
        /* Remove CACert file when in a PHAR file. */
        if (!empty(\Phar::running(false))) {
            unset($options[CURLOPT_CAINFO]);
        }
        if ($this->gzipEncoding) {
            $options[CURLOPT_ENCODING] = 'gzip';
        }
        if (!empty($this->proxy)) {
            $options[CURLOPT_PROXY] = $this->proxy['CURLOPT_PROXY'];
            $options[CURLOPT_PROXYUSERPWD] = $this->proxy['CURLOPT_PROXYUSERPWD'];
            $options[CURLOPT_PROXYPORT] = $this->proxy['CURLOPT_PROXYPORT'];
            $options[CURLOPT_PROXYAUTH] = CURLAUTH_BASIC;
            $options[CURLOPT_PROXYTYPE] = CURLPROXY_HTTP;
        }
        switch ($method) {
            case 'GET':
                break;
            case 'POST':
                $options[CURLOPT_POST] = true;
                $options[CURLOPT_POSTFIELDS] = Util::buildHttpQuery($postfields);
                break;
            case 'DELETE':
                $options[CURLOPT_CUSTOMREQUEST] = 'DELETE';
                break;
            case 'PUT':
                $options[CURLOPT_CUSTOMREQUEST] = 'PUT';
                break;
        }
        if (in_array($method, ['GET', 'PUT', 'DELETE']) && !empty($postfields)) {
            $options[CURLOPT_URL] .= '?' . Util::buildHttpQuery($postfields);
        }
        $curlHandle = curl_init();
        curl_setopt_array($curlHandle, $options);
        $response = curl_exec($curlHandle);
        // Throw exceptions on cURL errors.
        if (curl_errno($curlHandle) > 0) {
            throw new TwitterOAuthException(curl_error($curlHandle), curl_errno($curlHandle));
        }
        $this->response->setHttpCode(curl_getinfo($curlHandle, CURLINFO_HTTP_CODE));
        $parts = explode("\r\n\r\n", $response);
        $responseBody = array_pop($parts);
        $responseHeader = array_pop($parts);
        $this->response->setHeaders($this->parseHeaders($responseHeader));
        curl_close($curlHandle);
        return $responseBody;
    }