create csv/excel IPv6 subnet

Reference: http://colinrrobinson.com/technology/programming/php/ipv6-subnet-calculator/

1. download source
2. modify calculator_tools.php, add following function

   function print_csv( $network )
   {
           if (substr_count($network->position, '.') == 1){
           	echo $network->position.',56,';
   	}else{
           	echo $network->position.',64,';
   	}
   
           if ( count($network->subnets) )
                   echo '';
   
           echo hex_to_human($network->ip) . '/' . $network->prefix . "\n";
   
           foreach( $network->subnets as $subnet )
                   $network_array['subnets'][] = print_csv($subnet); 
   }

    

3. add create_csv.php

   <?php
   require_once 'calculator_tools.php';
   require_once 'Network.php';
   
   $address = '2001:b000:0015::';
   $prefix  = '48';
   $levels  = array('256','256');
   
   $ip = human_to_hex( $address );
   $network = new Network($ip, $prefix, $levels);
   print_csv($network);
   
   ?>