lautfm-ping.php

<?php
header('Content-Type: text/plain');

function ping($addr){
    $starttime = microtime(true);
    $file      = fsockopen ($addr, 80, $errno, $errstr, 10);
    $stoptime  = microtime(true);
    $status    = 0;

    if (!$file) $status = -1;  // Site is down
    else {
        fclose($file);
        $status = ($stoptime - $starttime) * 1000;
        $status = floor($status);                         
    }
    return $status;
}

$addr = '31.7.184.137';
echo "lautfm_stream_ping{server=\"" . $_SERVER['SERVER_NAME'] . "\", addr=\"" . $addr . "\"} " . ping($addr) . "\n";

$addr = '81.95.11.211';
echo "lautfm_stream_ping{server=\"" . $_SERVER['SERVER_NAME'] . "\", addr=\"" . $addr . "\"} " . ping($addr) . "\n";

?>