Calculate a plan ID using bitmasks

[Aerendir]

    /**
     * Calculates the bitmask of the boolean features selected
     * by the merchant and returns the corresponding value in binary format.
     *
     * @return int
     */
    protected function calculatePlanId(PremiumStoreEmbeddable $features, array $options)
    {
        // No feature is selected
        $booleanBitmask = 0;
        $amount = 0;

        if ($features->hasAds()) {
            $amount += $this->plans['boolean']['ads']['price'][$options['currency']][$options['interval']];
            $booleanBitmask += PremiumStoreEmbeddable::ADS;
        }

        if ($features->hasSeo()) {
            $amount += $this->plans['boolean']['seo']['price'][$options['currency']][$options['interval']];
            $booleanBitmask += PremiumStoreEmbeddable::SEO;
        }

        if ($features->hasSocial()) {
            $amount += $this->plans['boolean']['social']['price'][$options['currency']][$options['interval']];
            $booleanBitmask += PremiumStoreEmbeddable::SOCIAL;
        }

        $booleanBitmask = decbin($booleanBitmask);

        return
            $booleanBitmask
            . '_' . $options['interval']
            . '_' . $options['trial_period_days']
            . '_' . $options['currency']
            . '_' . $amount;
    }

    /**
     * Sets the general configurations (as prices, for examples) in the FeatureInterface objects loaded from a
     * SubscriptionInterface object.
     */
    private function configurePricesInSubscriptionFeatures(SubscriptionInterface $subscription)
    {
        /** @var FeatureInterface $feature *
        foreach ($subscription->getFeatures() as $feature) {
            $prices = $this->getConfiguredFeatures()->get($feature->getName())->getPrices();
            $feature->setPrices($prices);
        }
    }

This code once was in SerendipityHQ\Bundle\FeaturesBundle\Service\FeaturesManager.
Removed because it causes troubles when applying Rector and PHP CS Fixer.