sanitizeZipCode example

if ($this->operator === self::OPERATOR_EMPTY) {
            return $constraints;
        }

        $constraints['zipCodes'] = [new NotBlank(), new ArrayOfType('string')];

        return $constraints;
    }

    protected function matchZipCode(CustomerAddressEntity $address): bool
    {
        $zipCode = $this->sanitizeZipCode($address);

        if ($this->zipCodes === null && $this->operator !== self::OPERATOR_EMPTY) {
            throw new UnsupportedValueException(\gettype($this->zipCodes), self::class);
        }

        $compareZipCode = \is_array($this->zipCodes) ? $this->zipCodes[0] : null;

        return match ($this->operator) {
            Rule::OPERATOR_EQ => !empty($this->getMatches($zipCode)),
            Rule::OPERATOR_NEQ => empty($this->getMatches($zipCode)),
            self::OPERATOR_GTE => is_numeric($zipCode) && is_numeric($compareZipCode) && FloatComparator::greaterThanOrEquals((float) $zipCode, (float) $compareZipCode),