IPv4 Subnet Calculator (PHP)

Network calculator for subnet mask and other classless (CIDR) network information.

Features

Given an IP address and CIDR network size, it calculates the network information and provides all-in-one aggregated reports.

Calculations

• IP address
• Network size
• Subnet mask
• Network portion
• Host portion
• Number of IP addresses in the network
• Number of addressable hosts in the network
• IP address range
• Broadcast address
• Min and max host

Provides each data in dotted quads, hexadecimal, and binary formats, as well as array of quads.

Aggregated Network Calculation Reports

• Associative array
• JSON
• String
• Printed to STDOUT

Setup

Add the library to your composer.json file in your project:

{
  "require": {
      "markrogoyski/ipv4-subnet-calculator": "2.*"
  }
}

Use composer to install the library:

$ php composer.phar install

Composer will install IPv4 Subnet Calculator inside your vendor folder. Then you can add the following to your .php files to the use library with Autoloading.

require_once(__DIR__ . '/vendor/autoload.php');

Minimum Requirements

• PHP 5.3.0

Usage

Create New SubnetCalculator

// For network 192.168.112.203/23
$sub = new IPv4\SubnetCalculator('192.168.112.203', 23);

Various Network Information

$number_ip_addresses    = $sub->getNumberIPAddresses();      // 512
$number_hosts           = $sub->getNumberAddressableHosts(); // 510
$address_rage           = $sub->getIPAddressRange();         // [192.168.112.0, 192.168.113.255]
$addressable_host_range = $sub->getAddressableHostRange();   // [192.168.112.1, 192.168.113.254]
$network_size           = $sub->getNetworkSize();            // 23
$broadcast_address      = $sub->getBroadcastAddress();       // 192.168.113.255

IP Address

$ip_address        = $sub->getIPAddress();       // 192.168.112.203
$ip_address_quads  = $sub->getIPAddressQuads();  // [192, 168, 112, 203]
$ip_address_hex    = $sub->getIPAddressHex();    // C0A870CB
$ip_address_binary = $sub->getIPAddressBinary(); // 11000000101010000111000011001011

Subnet Mask

$subnet_mask        = $sub->getSubnetMask();       // 255.255.254.0
$subnet_mask_quads  = $sub->getSubnetMaskQuads();  // [255, 255, 254, 0]
$subnet_mask_hex    = $sub->getSubnetMaskHex();    // FFFFFE00
$subnet_mask_binary = $sub->getSubnetMaskBinary(); // 11111111111111111111111000000000

Network Portion

$network        = $sub->getNetworkPortion();       // 192.168.112.0
$network_quads  = $sub->getNetworkPortionQuads();  // [192, 168, 112, 0]
$network_hex    = $sub->getNetworkPortionHex();    // C0A87000
$network_binary = $sub->getNetworkPortionBinary(); // 11000000101010000111000000000000

Host Portion

$host        = $sub->getHostPortion();       // 0.0.0.203
$host_quads  = $sub->getHostPortionQuads();  // [0, 0, 0, 203]
$host_hex    = $sub->getHostPortionHex();    // 000000CB
$host_binary = $sub->getHostPortionBinary(); // 00000000000000000000000011001011

Min and Max Host

$min_host        = $sub->getMinHost();       // 192.168.112.1
$min_host_quads  = $sub->getMinHostQuads();  // [192, 168, 112, 1]
$min_host_hex    = $sub->getMinHostHex();    // C0A87001
$min_host_binary = $sub->getMinHostBinary(); // 11000000101010000111000000000001

$max_host        = $sub->getMaxHost();       // 192.168.113.254
$max_host_quads  = $sub->getMaxHostQuads();  // [192, 168, 113, 254]
$max_host_hex    = $sub->getMaxHostHex();    // C0A871FE
$max_host_binary = $sub->getMaxHostBinary(); // 11000000101010000111000111111110

Reports

Printed Report

$sub->printSubnetReport();
/*
192.168.112.203/23           Quads      Hex                           Binary
------------------ --------------- -------- --------------------------------
IP Address:        192.168.112.203 C0A870CB 11000000101010000111000011001011
Subnet Mask:         255.255.254.0 FFFFFE00 11111111111111111111111000000000
Network Portion:     192.168.112.0 C0A87000 11000000101010000111000000000000
Host Portion:            0.0.0.203 000000CB 00000000000000000000000011001011

Number of IP Addresses:      512
Number of Addressable Hosts: 510
IP Address Range:            192.168.112.0 - 192.168.113.255
Broadcast Address:           192.168.113.255
Min Host:                    192.168.112.1
Max Host:                    192.168.113.254
*/

Array Report

$sub->getSubnetArrayReport();
/*
Array
(
    [ip_address_with_network_size] => 192.168.112.203/23
    [ip_address] => Array
        (
            [quads] => 192.168.112.203
            [hex] => C0A870CB
            [binary] => 11000000101010000111000011001011
        )

    [subnet_mask] => Array
        (
            [quads] => 255.255.254.0
            [hex] => FFFFFE00
            [binary] => 11111111111111111111111000000000
        )

    [network_portion] => Array
        (
            [quads] => 192.168.112.0
            [hex] => C0A87000
            [binary] => 11000000101010000111000000000000
        )

    [host_portion] => Array
        (
            [quads] => 0.0.0.203
            [hex] => 000000CB
            [binary] => 00000000000000000000000011001011
        )

    [network_size] => 23
    [number_of_ip_addresses] => 512
    [number_of_addressable_hosts] => 510
    [ip_address_range] => Array
        (
            [0] => 192.168.112.0
            [1] => 192.168.113.255
        )

    [broadcast_address] => 192.168.113.255
    [min_host] => 192.168.112.1
    [max_host] => 192.168.113.254
)
*/

JSON Report

$sub->getJSONReport();
/*
{
    "ip_address_with_network_size": "192.168.112.203/23",
    "ip_address": {
        "quads": "192.168.112.203",
        "hex": "C0A870CB",
        "binary": "11000000101010000111000011001011"
    },
    "subnet_mask": {
        "quads": "255.255.254.0",
        "hex": "FFFFFE00",
        "binary": "11111111111111111111111000000000"
    },
    "network_portion": {
        "quads": "192.168.112.0",
        "hex": "C0A87000",
        "binary": "11000000101010000111000000000000"
    },
    "host_portion": {
        "quads": "0.0.0.203",
        "hex": "000000CB",
        "binary": "00000000000000000000000011001011"
    },
    "network_size": 23,
    "number_of_ip_addresses": 512,
    "number_of_addressable_hosts": 510,
    "ip_address_range": [
        "192.168.112.0",
        "192.168.113.255"
    ],
    "broadcast_address": "192.168.113.255",
    "min_host": "192.168.112.1",
    "max_host": "192.168.113.254"
}
*/

String Report

$string_report = $sub->getPrintableReport();
/*
192.168.112.203/23           Quads      Hex                           Binary
------------------ --------------- -------- --------------------------------
IP Address:        192.168.112.203 C0A870CB 11000000101010000111000011001011
Subnet Mask:         255.255.254.0 FFFFFE00 11111111111111111111111000000000
Network Portion:     192.168.112.0 C0A87000 11000000101010000111000000000000
Host Portion:            0.0.0.203 000000CB 00000000000000000000000011001011

Number of IP Addresses:      512
Number of Addressable Hosts: 510
IP Address Range:            192.168.112.0 - 192.168.113.255
Broadcast Address:           192.168.113.255
Min Host:                    192.168.112.1
Max Host:                    192.168.113.254
*/

// Printing the SubnetCalculator object will print the printable report.
print($sub);
/*
192.168.112.203/23           Quads      Hex                           Binary
------------------ --------------- -------- --------------------------------
IP Address:        192.168.112.203 C0A870CB 11000000101010000111000011001011
Subnet Mask:         255.255.254.0 FFFFFE00 11111111111111111111111000000000
Network Portion:     192.168.112.0 C0A87000 11000000101010000111000000000000
Host Portion:            0.0.0.203 000000CB 00000000000000000000000011001011

Number of IP Addresses:      512
Number of Addressable Hosts: 510
IP Address Range:            192.168.112.0 - 192.168.113.255
Broadcast Address:           192.168.113.255
Min Host:                    192.168.112.1
Max Host:                    192.168.113.254
*/

Unit Tests

$ cd tests
$ phpunit

Standards

IPv4 Subnet Calculator (PHP) conforms to the following standards:

• PSR-1 - Basic coding standard (http://www.php-fig.org/psr/psr-1/)
• PSR-2 - Coding style guide (http://www.php-fig.org/psr/psr-2/)
• PSR-4 - Autoloader (http://www.php-fig.org/psr/psr-4/)

License

IPv4 Subnet Calculator (PHP) is licensed under the MIT License.