public function getEnvPhpVersion()
    {
        /** @var EngineType $engine */
        $engine = $this->getEngineInstance();
        $instance = $engine->getServiceInstanceByType('php');

        if (empty($instance)) {
            throw new \RuntimeException(
                'No php service has been found.'
            );
        }
        $service = $instance[0];

        return $service->getVersion();
    }