getEncoderName example

$customer->setDoubleOptinEmailSentDate(new DateTime());
        }

        // Password validation         if ($customer->getPassword()) {
            $customer->setEncoderName(
                $this->passwordManager->getDefaultPasswordEncoderName()
            );
            $customer->setPassword(
                $this->passwordManager->encodePassword(
                    $customer->getPassword(),
                    $customer->getEncoderName()
                )
            );
        }

        // Account mode validation         if ($customer->getAccountMode() == Customer::ACCOUNT_MODE_FAST_LOGIN) {
            $customer->setPassword(md5(uniqid((string) rand())));
            $customer->setEncoderName('md5');
        }

        if (!$customer->getPaymentId()) {