Get the second level domain name

# geoip_domain_by_name

(PECL geoip >= 1.1.0)

geoip_domain_by_name — Get the second level domain name

### Description

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

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