Restagent\Request::http_request PHP Method

    private function http_request($http_method, $uri, $data = array())
    {
        $data = empty($data) ? '' : $data;
        $data = !empty($data) && is_array($data) ? http_build_query($data) : '';
        $http_method = strtoupper($http_method);
        if ($http_method == 'GET' && !empty($this->params) && is_array($this->params)) {
            throw new RestAgentException("You may not use param() when issuing an HTTP GET. Use data() instead!");
        }
        $this->header('Content-Length', strlen($data));
        if (!empty($data)) {
            curl_setopt($this->curl, CURLOPT_POSTFIELDS, $data);
        }
        // $this->headers is an associative array, to allow for overrides in set(), but
        // curl_setopt() takes indexed array, so we need to convert.
        $idxed_headers = array();
        foreach ($this->headers as $name => $value) {
            $idxed_headers[] = "{$name}: {$value}";
        }
        curl_setopt($this->curl, CURLOPT_HTTPHEADER, $idxed_headers);
        $full_url = $this->get_full_url($uri);
        // Sometimes you want to use query params with non-HTTP GET methods
        if ($http_method != 'GET') {
            $params = is_array($this->params) ? http_build_query($this->params) : null;
            if (!empty($params)) {
                $full_url .= "?{$params}";
            }
        }
        curl_setopt($this->curl, CURLOPT_URL, $full_url);
        curl_setopt($this->curl, CURLOPT_CUSTOMREQUEST, $http_method);
        $response = curl_exec($this->curl);
        //reset defaults to allow clean re-use of the request object
        $this->data = array();
        $this->headers = array();
        $this->method = '';
        //$this->check_status($response, $full_url);
        $header_size = curl_getinfo($this->curl, CURLINFO_HEADER_SIZE);
        $headers = substr($response, 0, $header_size);
        $content = substr($response, $header_size);
        if (function_exists('http_parse_headers')) {
            $headers = http_parse_headers($headers);
        } else {
            $headers = $this->_http_parse_headers($headers);
        }
        return array('code' => curl_getinfo($this->curl, CURLINFO_HTTP_CODE), 'meta' => curl_getinfo($this->curl), 'headers' => $headers, 'data' => $content);
    }