<?php

function ping($host)
{
    exec(sprintf('ping -c 1 -W 5 %s', escapeshellarg($host)), $res, $rval);
    return $rval === 0;
}
// random host ip example
$host = '192.168.0.2';
$online = ping($host);

// if site is online, send them to the site.
if ($online) { echo "online"; } else { echo "offiline"; } ;


function ping($host)
{
    exec(sprintf('ping -c 1 -W 5 %s', escapeshellarg($host)), $res, $rval);
    return $rval === 0;
}
// random host ip example
$host = '192.168.0.1';
$online = ping($host);

// if site is online, send them to the site.
if ($online) { echo "online"; } else { echo "offiline"; } ;



?>