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<geoip_db_get_all_infogeoip_id_by_name>
^GeoIP FunctionsLast updated: Mon, 26 Oct 2026

geoip_domain_by_name

(PECL geoip >= 1.1.0)

geoip_domain_by_name — Get the second level domain name

Description

function geoip_domain_by_name(string $hostname): string

The geoip_domain_by_name() function will return the second level domain names associated with a hostname or an IP address.

This function is currently only available to users who have bought a commercial GeoIP Domain Edition. A warning will be issued if the proper database cannot be located.

Parameters

hostname

The hostname or IP address.

Return Values

Returns the domain name on success, or false if the address cannot be found in the database.

Examples

Example #1 A geoip_domain_by_name() example

This will output the domain associated with IP 61.106.139.1.

<?php
$domain = geoip_domain_by_name('61.106.139.1');

if ($domain) {
    echo 'The domain is: '. $domain;
}

?>

The above example will output:

The domain is: von.co.kr

<geoip_db_get_all_infogeoip_id_by_name>
^GeoIP FunctionsLast updated: Mon, 26 Oct 2026