yii\httpclient\Response::parseCookie PHP Method

    private function parseCookie($cookieString)
    {
        $params = [];
        $pairs = explode(';', $cookieString);
        foreach ($pairs as $number => $pair) {
            $pair = trim($pair);
            if (strpos($pair, '=') === false) {
                $params[$this->normalizeCookieParamName($pair)] = true;
            } else {
                list($name, $value) = explode('=', $pair, 2);
                if ($number === 0) {
                    $params['name'] = $name;
                    $params['value'] = urldecode($value);
                } else {
                    $params[$this->normalizeCookieParamName($name)] = urldecode($value);
                }
            }
        }
        $cookie = new Cookie();
        foreach ($params as $name => $value) {
            if ($cookie->canSetProperty($name)) {
                // Cookie string may contain custom unsupported params
                $cookie->{$name} = $value;
            }
        }
        return $cookie;
    }