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<?php
namespace RemotelyLiving\PHPDNS\Services;
use RemotelyLiving\PHPDNS\Resolvers\Exceptions\QueryFailure;
use RemotelyLiving\PHPDNS\Resolvers\Exceptions\ReverseLookupFailure;
use RemotelyLiving\PHPDNS\Services\Interfaces\LocalSystemDNS as LocalSystemDNSInterface;
use function dns_get_record;
use function gethostbyaddr;
final class LocalSystemDNS implements LocalSystemDNSInterface
{
/**
* @throws \RemotelyLiving\PHPDNS\Resolvers\Exceptions\QueryFailure
*/
public function getRecord(string $hostname, int $type): array
$results = @dns_get_record($hostname, $type);
// this is untestable without creating a system networking failure
// @codeCoverageIgnoreStart
if ($results === false) {
throw new QueryFailure();
}
// @codeCoverageIgnoreEnd
return $results;
* @throws \RemotelyLiving\PHPDNS\Resolvers\Exceptions\ReverseLookupFailure
public function getHostnameByAddress(string $IPAddress): string
$hostname = @gethostbyaddr($IPAddress);
if ($hostname === $IPAddress || $hostname === false) {
throw new ReverseLookupFailure();
return $hostname;
remotelyliving /
php-dns
