Return array with all ip addreses from ip addresses subnet - PHP Subnet mask calculator

php_subnet_function.php

<?php

$range  = "194.8.42.0/24";
function ipListFromRange($range){
    $parts = explode('/',$range);
    $exponent = 32-$parts[1].'-';
    $count = pow(2,$exponent);
    $start = ip2long($parts[0]);
    $end = $start+$count;
    return array_map('long2ip', range($start, $end) );
}