IPUtil

IPv4 and IPv6 Address/Network parsing utility classes

Requirements PHP 5.6+

Does not require bcmath or gmp.

Built for use in LibreNMS - Network Monitoring Software.

Usage

Create a new IP instance

try {
    $ip = new IP('192.168.1.1');
    // or
    $ip = IP::parse('192.168.1.1');
} catch (InvalidIpException $e) {
    //
}

Check if a given string is a valid IP

IP::isValid('192.168.1.333');

You may specifically require IPv4 or IPv6 by using those classes directly:

$ip = IPv4::parse('192.168.1.1');
$ip = IPv6::parse('2600::');

IPv4::isValid('192.168.1.1');
IPv6::isValid('2600::');

Access the parsed IP

echo $ip; // print nicely formated IP with cidr/prefix

echo $ip->address; // print just the address
echo $ip->cidr; // print the prefix length

echo $ip->compressed(); // Compresses IP addresses for easy reading
echo $ip->uncompressed(); // Uncompresses IP addresses for easy parsing

Handle network operations:

if ($ip->inNetwork('192.168.1.1/24')) {
    echo $ip->getNetwork();
}

Parse from Hex (useful for SNMP)

$ip = IP::fromHexString('c0a801fe');

License

Copyright (C) 2017-2018 Tony Murray

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

LICENSE contains a copy of the full GPLv3 licensing conditions.