How can I ping a server port with PHP

0 votes

I want a PHP script which allows you to ping an IP address and a port number (ip:port). Here is the script but it works only for websites, not ip:port.

<?php

function ping($host, $port, $timeout) 
{ 
  $tB = microtime(true); 
  $fP = fSockOpen($host, $port, $errno, $errstr, $timeout); 
  if (!$fP) { return "down"; } 
  $tA = microtime(true); 
  return round((($tA - $tB) * 1000), 0)." ms"; 
}

//Echoing it will display the ping if the host is up, if not it'll say "down".
echo ping("www.google.com", 80, 10);

?>

I want this for a game server.

The idea is that I can type in the IP address and port number, and I get the ping response.

Nov 19, 2020 in PHP by kartik
• 37,520 points
671 views

1 answer to this question.

0 votes

Hello @kartik,

Test different ports:

$wait = 1; // wait Timeout In Seconds
$host = 'example.com';
$ports = [
    'http'  => 80,
    'https' => 443,
    'ftp'   => 21,
];

foreach ($ports as $key => $port) {
    $fp = @fsockopen($host, $port, $errCode, $errStr, $wait);
    echo "Ping $host:$port ($key) ==> ";
    if ($fp) {
        echo 'SUCCESS';
        fclose($fp);
    } else {
        echo "ERROR: $errCode - $errStr";
    }
    echo PHP_EOL;
}


// Ping example.com:80 (http) ==> SUCCESS
// Ping example.com:443 (https) ==> SUCCESS
// Ping example.com:21 (ftp) ==> ERROR: 110 - Connection timed out
answered Nov 19, 2020 by Niroj
• 82,760 points

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