PHP Port Checker
Platform: PHP
Published Nov 30, 2008
Updated May 02, 2010
This script can be added to a website to check if a port on a specified website/ip is open or not. my use for this was for checking with my uTorrent port.
In basic, if a socket is openned, it has connected. If it times out (2-3 seconds) it fails. You can edit the timeout in the fsockopen line, the last paramater is the timeout in seconds
Tested in Firefox. Report any bugs. Feel free to use wherever you need it.
Can now scan a range of ports!
Warning: A wide range of ports WILL take a long time to load the page.
Screenshot
This script has been featured on the following websites with thanks to the wonders of google.
http://pallz.net/port.php
http://www.dunton-green.co.uk/kentinternet/port.php
http://sgnews.totalh.com/portChecker.php
http://www.kmcnally.net/stuff/port.php
http://dm-gwi.co.cc/Parsers/RandomCrap.php
http://x10hosting.com/forums/scripts-3rd-party-apps/100490-php-portcheck.html <?php
/* Port Checking PHP Script
Created by Jonesy44
Released: 30 November, 2008 */
echo '<title>Port Availability Checker';
//Please leave the next line :)
echo ', Writen by Jonesy44';
echo '</title>';
$addr = $_SERVER["REMOTE_ADDR"];
$port = "80";
if ($_GET["addr"]) {
$addr = $_GET["addr"];
}
if ($_GET["port"]) {
$port = $_GET["port"];
}
if ($_GET["port2"]) {
$port2 = $_GET["port2"];
}
echo '<form action="' .$_SERVER["PHP_SELF"]. '" method="get">
<div style="width:300px;background:#f1f1f1;padding:10px;font-family:arial;">
<table width="100%" border="0" cellspacing="0" cellpadding="2">
<tr>
<td colspan="2" style="font-size:12px;">Please enter the Address/IP and port of the website or IP address you wish to test (enter the second IP if you want so scan to that port range)</td>
</tr>
<tr>
<td width="30%" style="font-size:12px;">Address/IP</td>
<td width="80%"><input type="text" name="addr" value="' .$addr. '"></td>
</tr>
<tr>
<td width="30%" style="font-size:12px;">Port</td>
<td width="80%"><input type="text" name="port" value="' .$port. '"></td>
</tr>
<tr>
<td width="30%" style="font-size:12px;">-</td>
<td width="80%"><input type="text" name="port2" value="' .$port2. '"></td>
</tr>
<td width="30%"> </td>
<td width="80%"><input type="submit" value="Check/Scan Port(s)"></td>
</tr>
</table>
</div>
</form>
';
if ($_GET["addr"]) {
if ($_GET["port"] && !$_GET["port2"]) {
$fp = @fsockopen($addr, $port, $errno, $errstr, 2);
$success = "#FF0000";
$success_msg = "is closed and cannot be used at this time";
if ($fp) {
$success = "#99FF66";
$success_msg = "is open and ready to be used";
}
@fclose($fp);
echo '<div style="width:300px;background:' .$success. ';padding:10px;font-family:arial;font-size:12px;">
The address <b>"' .$addr. ':' .$port. '"</b> ' .$success_msg. '
</div>';
}
else if ($_GET["port"] && $_GET["port2"]) {
$p1 = $_GET["port"];
$p2 = $_GET["port2"];
if ($p1 == $p2) {
$fp = @fsockopen($addr, $port, $errno, $errstr, 2);
$success = "#FF0000";
$success_msg = "is closed and cannot be used at this time";
if ($fp) {
$success = "#99FF66";
$success_msg = "is open and ready to be used";
}
@fclose($fp);
echo '<div style="width:300px;background:' .$success. ';padding:10px;font-family:arial;font-size:12px;">
The address <b>"' .$addr. ':' .$port. '"</b> ' .$success_msg. '
</div>';
}
else {
if ($p1 < $p2) {
$s = $p1;
$st = $p1;
$e = $p2;
}
else if ($p2 < $p1) {
$s = $p2;
$st = $p2;
$e = $p1;
}
while ($s <= $e) {
$fp = @fsockopen($addr, $s, $errno, $errstr, 1);
if ($fp) {
$p_open = $p_open. " " .$s;
$p_1 = 1;
}
@fclose($fp);
$s++;
}
if ($p_1) {
$c = "#99FF66";
$m = "On the address <b>" .$addr. "</b> and port range <b>" .$st. "-" .$e. "</b> the following ports were open: " .$p_open;
}
else {
$c = "#FF0000";
$m = "No ports on the address <b>" .$addr. "</b> and port range <b>" .$st. "-" .$e. "</b> were open";
}
echo '<div style="width:300px;background:' .$c. ';padding:10px;font-family:arial;font-size:12px;">' .$m. '</div>';
}
}
}
?>
