php: ip2long returning negative val

Question

function ip_address_to_number($IPaddress) { 
     if(!$IPaddress) {
      return false;
     } else {
      $ips = split(\'\\.\',$IPaddress);
      return($ips[3] +          


        

Answer 1

You can use -

// IP Address to Number
function inet_aton($ip)
{
    $ip = trim($ip);
    if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) return 0;
    return sprintf("%u", ip2long($ip));  
}

// Number to IP Address
function inet_ntoa($num)
{
    $num = trim($num);
    if ($num == "0") return "0.0.0.0";
    return long2ip(-(4294967295 - ($num - 1))); 
}