IP SCANNER

<?php
error_reporting(0);
/**
*
*/
class Ipscanner
{
    var $timeout;
    function banner(){
        echo "------------------------------------\r\n";
        echo "--        SIMPLE IP SCANNER       --\r\n";
        echo "------------------------------------\r\n";
        echo "[Scan] ".$this->ip."\r\n\n";
    }
    function pesan($pesan){
        echo "[".date("H:i:s")."] ".$pesan."\r\n";
    }
    function scan($ip)
    {
        $this->ip = $ip;
        $ip     = explode("-", $ip);
        $start  = explode(".", $ip[0]);
        $this->banner();

        for ($i=0; $i <3; $i++) {
            $ips .= $start[$i].".";
        }
        echo $this->timeout;
        for ($i=$start[3]; $i <$ip[1]+1; $i++) {
            $ch = curl_init($ips.$i);
            curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT ,0);
            curl_setopt ($ch, CURLOPT_TIMEOUT, 2);
            curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
            $data = curl_exec($ch);
            $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
            curl_close($ch);
            if($httpcode>=200 && $httpcode<300){
                $this->pesan($ips.$i." -> Live");
                $live[] = $ips.$i;
            } else {
                $this->pesan($ips.$i." -> Die");
                $die[] = $ips.$i;
            }
        }
        echo "---- [ IP LIVE ] ----\r\n";
        foreach ($live as $key => $ip) {
            echo " > ".$ip."\r\n";
        }
        }

}

$ipscanner = new Ipscanner;
$ipscanner->scan("192.168.1.1-255");
?>