(PECL geoip >= 1.0.2)
geoip_isp_by_name — Get the Internet Service Provider (ISP) name
$hostname): stringThe geoip_isp_by_name() function will return the name of the Internet Service Provider (ISP) that an IP is assigned to.
This function is currently only available to users who have bought a commercial GeoIP ISP Edition. A warning will be issued if the proper database cannot be located.
hostnameThe hostname or IP address.
Returns the ISP name on success, or false if the address
cannot be found in the database.
Example #1 A geoip_isp_by_name() example
This will print the ISP name of host example.com.
<?php
$isp = geoip_isp_by_name('www.example.com');
if ($isp) {
echo 'This host IP is from ISP: ' . $isp;
}
?>
The above example will output:
This host IP is from ISP: ICANN c/o Internet Assigned Numbers Authority