php实现ping

// see some other good php3 scripts

// goto http://www.dtheatre.com/scripts echo "Pinging

";

$to_ping = "dtheatre.com";

$count = 3;

$psize = 65;

echo " Please be patient, this can take a few moments...n

";

flush(); while (1) {

?>

 
exec("ping -c $count -s $psize $to_ping", $list); 
for ($i=0;$i < count($list);$i++) { 
print $list[$i]."n"; 
} 
?> 

flush();

sleep(3);

}

?> （出处：Viphot）