geoip_asnum_by_name

(PECL geoip >= 1.1.0)

geoip_asnum_by_name — Get the Autonomous System Numbers (ASN)

说明

string geoip_asnum_by_name ( string $hostname )

The geoip_asnum_by_name() function will return the Autonomous System Numbers (ASN) associated with an IP address.

参数

hostname

The hostname or IP address.

返回值

Returns the ASN on success, or FALSE if the address cannot be found in the database.

范例

Example #1 A geoip_asnum_by_name() example

This will output the ASN of the host www.example.com.

<?php
$asn = geoip_asnum_by_name('www.example.com');

if ($asn) {
    echo 'The ASN is: ' $asn;
}
?>

以上例程会输出：

The ASN is: AS15133 EdgeCast Networks, Inc