Online PHP editor | refs for 9LoFN

<?php function ipv4Breakout ($ip_address, $ip_nmask) { $hosts = array(); //convert ip addresses to long form $ip_address_long = ip2long($ip_address); $ip_nmask_long = ip2long($ip_nmask); //caculate network address $ip_net = $ip_address_long & $ip_nmask_long; //caculate first usable address $ip_host_first = ((~$ip_nmask_long) & $ip_address_long); $ip_first = ($ip_address_long ^ $ip_host_first) + 1; //caculate last usable address $ip_broadcast_invert = ~$ip_nmask_long; $ip_last = ($ip_address_long | $ip_broadcast_invert) - 1; //caculate broadcast address $ip_broadcast = $ip_address_long | $ip_broadcast_invert; foreach (range($ip_first, $ip_last) as $ip) { array_push($hosts, $ip); } $block_info = array(array("network" => "$ip_net"), array("first_host" => "$ip_first"), array("last_host" => "$ip_last"), array("broadcast" => "$ip_broadcast"), $hosts); return $block_info; } print_r(ipv4Breakout ('96.4.3.0', '255.255.255.0'));