Online PHP editor | refs for hm5e1

<?php function get_list_ip($ip_addr_cidr){ $ip_arr = explode("/", $ip_addr_cidr); $bin = ""; for($i=1;$i<=32;$i++) { $bin .= $ip_arr[1] >= $i ? '1' : '0'; } $ip_arr[1] = bindec($bin); $ip = ip2long($ip_arr[0]); $nm = $ip_arr[1]; $nw = ($ip & $nm); $bc = $nw | ~$nm; $bc_long = ip2long(long2ip($bc)); echo "Number of Hosts: " . ($bc_long - $nw - 1) . "<br/>"; echo "Host Range: " . long2ip($nw + 1) . " -> " . long2ip($bc - 1) . "<br/>". "<br/>"; for($zm=1;($nw + $zm)<=($bc_long - 1);$zm++) { echo long2ip($nw + $zm). "<br/>"; } } get_list_ip('192.168.1.101/22');