ActiveResource\ActiveResource::_send_and_receive PHP Метод

    public function _send_and_receive($url, $method, $data = array(), $start_tag = false)
    {
        $params = '';
        $el = $start_tag ? $start_tag : $this->element_name;
        // Singular this time
        if ($this->request_format == 'url') {
            foreach ($data as $k => $v) {
                if ($k != 'id' && $k != 'created-at' && $k != 'updated-at') {
                    $params .= '&' . $el . '[' . str_replace('-', '_', $k) . ']=' . rawurlencode($v);
                }
            }
            $params = substr($params, 1);
        } elseif ($this->request_format == 'xml') {
            $params = '<?xml version="1.0" encoding="UTF-8"?><' . $el . ">\n";
            foreach ($data as $k => $v) {
                if ($k != 'id' && $k != 'created-at' && $k != 'updated-at') {
                    $params .= $this->_build_xml($k, $v);
                }
            }
            $params .= '</' . $el . '>';
        }
        if ($this->extra_params !== false) {
            $url = $url . $this->extra_params;
        }
        $this->request_body = $params;
        $this->request_uri = $url;
        $this->request_method = $method;
        $res = $this->_fetch($url, $method, $params);
        if ($res === false) {
            return $this;
        }
        // Keep splitting off any top headers until we get to the (XML) body:
        while (strpos($res, "HTTP/") === 0) {
            list($headers, $res) = explode("\r\n\r\n", $res, 2);
            $this->response_headers = $headers;
            $this->response_body = $res;
            if (preg_match('/HTTP\\/[0-9]\\.[0-9] ([0-9]+)/', $headers, $regs)) {
                $this->response_code = $regs[1];
            } else {
                $this->response_code = false;
            }
            if (!$res) {
                return $this;
            } elseif ($res == ' ') {
                $this->error = 'Empty reply';
                return $this;
            }
        }
        // parse XML response
        $xml = new SimpleXMLElement($res);
        // normalize xml element name in case rails ressource contains an underscore
        if (str_replace('-', '_', $xml->getName()) == $this->element_name_plural) {
            // multiple
            $res = array();
            $cls = get_class($this);
            foreach ($xml->children() as $child) {
                $obj = new $cls();
                foreach ((array) $child as $k => $v) {
                    $k = str_replace('-', '_', $k);
                    if (isset($v['nil']) && $v['nil'] == 'true') {
                        continue;
                    } else {
                        $obj->_data[$k] = $v;
                    }
                }
                $res[] = $obj;
            }
            return $res;
        } elseif ($xml->getName() == 'errors') {
            // parse error message
            $this->error = $xml->error;
            $this->errno = $this->response_code;
            return false;
        }
        foreach ((array) $xml as $k => $v) {
            $k = str_replace('-', '_', $k);
            if (isset($v['nil']) && $v['nil'] == 'true') {
                continue;
            } else {
                $this->_data[$k] = $v;
            }
        }
        return $this;
    }