scan.php

<?php

$subnet = "192.168.3.";        

$ports = [
    21, 22, 23, 25, 53, 80, 110, 111,
    135, 139, 143, 389, 443, 445, 587,
    631, 636, 8000, 8080, 8443, 3306,
    3389, 5357, 5900, 8009
];

$timeout = 0.3;

$total = 254 * count($ports);
$current = 0;

function progress($current, $total) {
    $p = round(($current / $total) * 100, 2);
    echo "\r[ $p% ] scanning...";
}

for ($h = 1; $h <= 254; $h++) {
    $host = $subnet . $h;

    foreach ($ports as $port) {
        $current++;
        progress($current, $total);

        $fp = @fsockopen($host, $port, $errno, $errstr, $timeout);

        if ($fp) {
            stream_set_timeout($fp, 1);
            $banner = @fread($fp, 2048);
            fclose($fp);

            echo "\nOPEN  $host:$port";

            if ($banner && strlen(trim($banner)) > 0) {
                $banner = trim($banner);
                echo " | Banner: " . substr($banner, 0, 200);
            }

            echo "\n";
        }
    }
}

echo "\nDone.\n";