Simple Port Scanner

<?php

error_reporting(0);
set_time_limit(0);
ini_set('error_log',NULL);
ini_set('max_execution_time',0);
ini_set('log_errors',0);

?>

<html>
<center>
<title>0b0xed PORT SCANNER</title>
<h1>Simple Port Scanner</h1>

<table border=1>
<form method=post>
<tr>
<td>Target IP (without range):</td>
<td><input type=text value='127.0.0.' name=ip></td>
</tr>
<tr>
<td>First Range : </td>
<td><input type=number min=1 max=255 name=rangefirst></td>
</tr>
<tr>
<td>Last Range : </td>
<td><input type=number min=1 max=255 name=rangeakhir></td>
<tr>
<td>List PORT : </td>
<td>
<!--PORT 80--!>
<input type=radio name=port value=80>PORT :80</br>
<!--PORT 32--!>
<input type=radio name=port value=32>PORT :32</br>
<!--PORT 8080--!>
<input type=radio name=port value=8080>PORT :8080</br>
<!--PORT 3306--!>
<input type=radio name=port value=3306>PORT :3306</br>
<!--PORT 21--!>
<input type=radio name=port value=21>PORT :21</br>
</td>
<tr>
<td colspan=2 align=center><input type=submit value=Scan></td>
</tr>
</form>
</table>
<p>.php?tuto=rial for tutorial</p>
<?php

/*
Don't Be A Skiddies
Change The Code And Claim Self !!
Simple Port Scanner
Can Setup The Range
Because some site cant support if scan ip range 1-255
Greets : Shahril :)
Contact Me : https://www.facebook.com/0b0xed
*/

if ( !empty($_POST['ip']) ) {

  $rangefirst = $_POST['rangefirst'];
  $rangeakhir = $_POST['rangeakhir'];
  $inputport = $_POST['port'];
  $lastrange = $rangeakhir + 1; // kadang2 tersilap,die akan tertolak 1 :)
  $ip = $_POST['ip'];
  echo "Scanning Port $rangefirst - $rangeakhir : </br>";
  echo " <br> ";
  for ( $i = $rangefirst; $i < $lastrange; $i++ ) {

  if ($fp = @fsockopen($ip.$i, $inputport,$errCode,$errStr, 1)) {

  ?>
  <center>
  <table border=1>
  <tr>
  <td>OK : </td>
  <td><? echo $ip.$i; ?></td>
  </tr>
  </table>
  <marquee><font color=green>--OK--</font></marquee>
  </center>


  <?

  }

  fclose($fp);

  }

  }

//tutorial
if(isset($_REQUEST['tuto'])) {

switch ($_REQUEST['tuto']) {
case 'rial';

echo "
<center>
<h1>Welcome To Tutorial</h1>
</center>
<br>
<br>
<br>
<p>1.Choose Your Target IP</p>
<p>2.Put At Target With Your IP Without RANGE.</p>
<p>Example : 127.0.0.1 , Put At Target IP = 127.0.0. (with dot)</p>
<p>3.Choose Your Range</p>
<p>4.Scan And Save Your Result</p>
<p>Greets : /.Shahril</p>
";
 }
}

?>