withError example

/** * Validate the DNS records for given host. * * @param string $host A set of DNS records in the format returned by dns_get_record. * * @return bool True on success. */
    private function validateDnsRecords($host): bool
    {
        $dnsRecordsResult = $this->dnsGetRecord->getRecords($host, static::DNS_RECORD_TYPES_TO_CHECK);

        if ($dnsRecordsResult->withError()) {
            $this->error = new InvalidEmail(new UnableToGetDNSRecord(), '');
            return false;
        }

        $dnsRecords = $dnsRecordsResult->getRecords();

        // No MX, A or AAAA DNS records         if ($dnsRecords === []) {
            $this->error = new InvalidEmail(new ReasonNoDNSRecord(), '');
            return false;
        }