luzrain/ipcalc

IPv4/IPv6 network calculator for PHP

1.0.3 2019-02-12 19:55 UTC

Requires

• php: >=5.1

MIT

• network
• ipv6
• IP
• ipv4
• dtr
• subnet
• cidr

README

IPv4/IPv6 network calculator for PHP

Installation

Install with composer:

composer require "luzrain/ipcalc:~1.0.0"

Basic usage

This class takes both IPv6 and IPv4 addresses into consideration. You can create the class by passing an IP and CIDR mask one of two ways:

require 'vendor/autoload.php';

$net = new IPCalc\IP('fe80:dead:15:a:bad:1dea:11:2234/93');
// or
$net = new IPCalc\IP('fe80:dead:15:a:bad:1dea:11:2234', 93);

You can then access different aspects of a network:

$net->getVersion();    // 6                                  # IP version
$net->getIp();         // fe80:dead:15:a:bad:1dea:11:2234    # Actual IP address
$net->getCidr()        // 93                                 # Cidr prefix
$net->getNetmask()     // ffff:ffff:ffff:ffff:ffff:fff8::    # Netmask in printable format
$net->getNetwork()     // fe80:dead:15:a:bad:1de8::          # Address of current IP network (for ipv4)
$net->getBroadcast()   // fe80:dead:15:a:bad:1def:ffff:ffff  # Broadcast address of network (for ipv4)
$net->getHostMin()     // fe80:dead:15:a:bad:1de8::          # First IP adress
$net->getHostMax()     // fe80:dead:15:a:bad:1def:ffff:ffff  # Last IP adress

There is a __toString() method which will return a JSON-encoded string on the class object:

echo new IPCalc\IP('192.168.1.10/24');

The above would return:

{
    "version":4,
    "ip":"192.168.1.10",
    "cidr":24,
    "netmask":"255.255.255.0",
    "network":"192.168.1.0",
    "broadcast":"192.168.1.255",
    "hostmin":"192.168.1.1",
    "hostmax":"192.168.1.254"
}

Notes:

Although IPv6 does not use the concept of networks and broadcasts, the ranges are still needed to do inclusive searches. Also, IPv6 has a subnet segment, but can still be supernetted/subnetted, which this takes into consideration.