That was the same way I was thinking. But even google.com goes down. Is there a "reliable" way of doing it?
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Check connection to internet
I have a script in PHP which I use to check the status of a couple sites I have. This runs as a cron job every couple minutes. One problem I have is that it is located on a home server, which can possibly lose Internet due to the ISP connection.
Is there a reliable way to check for the internet being available?
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Answers
<?php
function pingDomain($domain){
$starttime = microtime(true);
$file = fsockopen ($domain, 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;
}
?>
see it working at
http://www.f1astronomie.eu
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by: pbonneauPosted on 2007-01-29 at 23:25:08ID: 18425781
You could always check before and after your two sites for a site that's likely to be 'always up' like www.google.com
If that fails then most probably it's your connection, not your sites which are down.