source: trunk/src/inc/Network.class.php@ 7766

<?php
/*
 * Project: NodeMap2.0
 * File: Network.class.php
 * Purpose: Contains a network, calculates everything like broadcast IP, netmask etc.
 */

class Network {
        public $netmaskNumber;          // Netmask number
        public $netmaskBinair;          // Binair value of netmask address
        public $netmaskDecimal;         // Decimal value of netmask address
        public $wildcardBinair;         // Binair value of wildcard address
        public $wildcardDecimal;        // Decimal value of wildcard address
        public $networkBinair;          // Binair value of network address
        public $networkDecimal;         // Decimal value of network address
        public $broadcastBinair;        // Binair value of broadcast address
        public $broadcastDecimal;       // Decimal value of broadcast address
        public $hostminBinair;          // Binair value of hostmin address
        public $hostminDecimal;         // Decimal value of hostmin address
        public $hostmaxBinair;          // Binair value of hostmax address
        public $hostmaxDecimal;         // Decimal value of hostmax address
        public $numberHosts;            // Number of possible hosts in this network

        /*
         * Function: __construct (constructor)
         * Description: Creating a new Network object
         * Parameters: string $ip_address, int $ip_netmask
         * Returns: -
         */
        public function __construct($ip_address, $ip_netmask) {
                // Binair value of given IP address
                $binair = $this->binIP($ip_address);

                // Let's store the IP netmask number
                $this->netmaskNumber = $ip_netmask;

                // Netmask address
                $this->netmaskBinair = str_repeat('1', $ip_netmask) . str_repeat('0', 32 - $ip_netmask);
                $this->netmaskDecimal = $this->decIP($this->netmaskBinair);

                // Wildcard address
                $this->wildcardBinair = str_repeat('0', $ip_netmask) . str_repeat('1', 32 - $ip_netmask);
                $this->wildcardDecimal = $this->decIP($this->wildcardBinair);

                // Network address
                $this->networkBinair = substr($binair, 0, $ip_netmask) . str_repeat('0', 32 - $ip_netmask);
                $this->networkDecimal = $this->decIP($this->networkBinair);

                // Broadcast address
                $this->broadcastBinair = substr($binair, 0, $ip_netmask) . str_repeat('1', 32 - $ip_netmask);
                $this->broadcastDecimal = $this->decIP($this->broadcastBinair);

                // HostMin address
                $this->hostminBinair = substr($binair, 0, $ip_netmask) . str_repeat('0', 31 - $ip_netmask) . '1';
                $this->hostminDecimal = $this->decIP($this->hostminBinair);

                // HostMax address
                $this->hostmaxBinair = substr($binair, 0, $ip_netmask) . str_repeat('1', 31 - $ip_netmask) . '0';
                $this->hostmaxDecimal = $this->decIP($this->hostmaxBinair);

                // Numbers of hosts
                $this->numberHosts = bindec(substr($this->broadcastBinair, $ip_netmask)) - bindec(substr($this->networkBinair, $ip_netmask)) - 1;
        }

        function binIP($address) {
                $address_array = explode('.', $address);
                $address_binair = '';

                for ($i = 0; $i < 4; $i++) {
                        // Create binair value
                        $binair = decbin($address_array[$i]);

                        // Trim value to the length
                        $binair = trim($binair, 8);

                        // Add zeros at the left to fit to $size
                        $binair = str_repeat('0', 8 - strlen($binair)) . $binair;

                        $address_binair .= $binair;
                }

                return $address_binair;
        }

        function decIP($binair) {
                $address_array = array();

                for ($i = 0; $i < 4; $i++) {
                        $block = substr($binair, $i * 8, 8) . '<br/>';
                        $address_array[] = bindec(intval($block));
                }

                return implode('.', $address_array);
        }

        function inNetwork($ip_address) {
                return false;
        }
}

$ip = '172.16.0.245';
$network = new Network($ip, 30);
echo    '
        Address: ' . $ip . ' / ' . Network::binIP($ip) . '<br/>
        Netmask: ' . $network->netmaskDecimal . ' / ' . $network->netmaskBinair . '<br/>
        Wildcard: ' . $network->wildcardDecimal . ' / ' . $network->wildcardBinair . '<br/>
        Network: ' . $network->networkDecimal . ' / ' . $network->networkBinair . '<br/>
        Broadcast: ' . $network->broadcastDecimal . ' / ' . $network->broadcastBinair . '<br/>
        HostMin: ' . $network->hostminDecimal . ' / ' . $network->hostminBinair . '<br/>
        HostMax: ' . $network->hostmaxDecimal . ' / ' . $network->hostmaxBinair . '<br/>
        Hosts/Net: ' . $network->numberHosts . '<br/>';
?>