Pinging sites

What is the most efficient way of pinging a large number of sites? I'm trying to gather data.

Thanks

 

I had made a script while back for a client that pinged about 200 websites every 10 minutes. This was the fastest solution that met up to ping those sites efficiently:

function ping($host) {
	$s = shell_exec("ping -c 1 -w 1 {$host}");
	$r = "/mdev = (.*)\/(.*)\/(.*)\/(.*) ms/";
	preg_match($r, $s, $m);
	return $m ? $m[1] : false;
}

PHP:

It also returns the ping time

** It most likely won't work on shared hosts though as most hosts disable the shell_exec call. In that case you can use cURL to ping the site or open a socket connection and time it.

 

thank you !

 

thanks, I'll take a look at those scripts

 

good script..

thanks,
and btw, you can use curl too,
like this :

 

All pinging will do is show you hop times and the like, not really gather data other than that. If you mean scraper, let me know the user agent you use so I can blacklist you for stealing content.