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(PECL geoip >= 1.1.0)
geoip_asnum_by_name — Get the Autonomous System Numbers (ASN)
$hostname
)The geoip_asnum_by_name() function will return the Autonomous System Numbers (ASN) associated with an IP address.
hostname
The hostname or IP address.
Returns the ASN on success, or FALSE
if the address
cannot be found in the database.
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
[#1] edwin at theroyalstudent dot com [2014-11-11 15:22:48]
The code example as stated has a missing '.', causing a syntax error if it is pasted and executed without being checked.
Correct Code:
<?php
$asn = geoip_asnum_by_name('www.example.com');
if ($asn) {
echo 'The ASN is: ' . $asn;
}
?>