Namshi\JOSE\SimpleJWS::isExpired PHP Method

    public function isExpired()
    {
        $payload = $this->getPayload();
        if (isset($payload['exp'])) {
            $now = new \DateTime('now');
            if (is_int($payload['exp'])) {
                return $now->getTimestamp() - $payload['exp'] > 0;
            }
            if (is_numeric($payload['exp'])) {
                return $now->format('U') - $payload['exp'] > 0;
            }
        }
        return false;
    }