Files
nextcloud/php/src/Helper/NetworkHelper.php
T
2026-05-29 10:11:08 +02:00

24 lines
729 B
PHP

<?php
declare(strict_types=1);
namespace AIO\Helper;
class NetworkHelper {
/**
* Resolve a hostname to its IP address, trying IPv4 first and falling back
* to IPv6 (AAAA record) when no A record is found. Returns the hostname
* unchanged when neither record resolves successfully.
*/
public static function resolveHostname(string $hostname): string {
$ipv4 = gethostbyname($hostname);
if ($ipv4 !== $hostname) {
return $ipv4;
}
$records = dns_get_record($hostname, DNS_AAAA);
if (is_array($records) && isset($records[0]['ipv6']) && $records[0]['ipv6'] !== '') {
return $records[0]['ipv6'];
}
return $hostname;
}
}