A fixture example for Symfony where a hardcoded connection is made between a local entity and the Stripe id.

PublicPlanData.php

class PublicPlanData extends AbstractFixture implements OrderedFixtureInterface
{
    public function load(ObjectManager $manager)
    {
        $planUnlimitedFree = new PlanInfo();
        $planUnlimitedFree->setName('FREE UNLIMITED PLAN')
            ->setAmount(0)
            ->setCurrency('USD')
            ->setDescription('Special plan for users that should never pay for using the service')
            ->setType(PlanInfo::TYPE_FREE)
            ->setInterval(PlanInfo::INTERVAL_YEAR)
            ->setLicensesCount(0)
            ->setPublic(false)
            ->setId('62578588-5a55-4cea-911e-241ba1b3ce1c');
        $manager->persist($planUnlimitedFree);

        $planIndividualMonthly = new PlanInfo();
        $planIndividualMonthly->setName('INDIVIDUAL MONTHLY PLAN')
            ->setAmount(1)
            ->setCurrency('USD')
            ->setDescription('INDIVIDUAL MONTHLY PLAN')
            ->setType(PlanInfo::TYPE_PERSONAL)
            ->setInterval(PlanInfo::INTERVAL_MONTH)
            ->setLicensesCount(1)
            ->setPublic(true)
            ->setId('32b1eff7-ca8a-4591-a537-a99f8c7a2edc'); // Stripe Test mode
        $manager->persist($planIndividualMonthly);

        $planIndividualYearly = new PlanInfo();
        $planIndividualYearly->setName('INDIVIDUAL YEARLY PLAN')
            ->setAmount(1)
            ->setCurrency('USD')
            ->setDescription('INDIVIDUAL YEARLY PLAN')
            ->setType(PlanInfo::TYPE_PERSONAL)
            ->setInterval(PlanInfo::INTERVAL_YEAR)
            ->setLicensesCount(1)
            ->setPublic(true)
            ->setId('ac4e4771-1525-40e1-aa8f-019b9c2e3fb0'); // Stripe Test mode
        $manager->persist($planIndividualYearly);

        $manager->flush();

        $this->addReference('plan-unlimited-free', $planUnlimitedFree);
        $this->addReference('plan-individual-monthly', $planIndividualMonthly);
        $this->addReference('plan-individual-yearly', $planIndividualYearly);
    }

    // This is the order in which the fixtures are created.
    public function getOrder()
    {
        return 1;
    }
}