public static function addServer($host, $path = "", $weight = 1, $timeout = 1)
{
$weight = $weight * 10;
for ($i = 1; $i <= $weight; $i++) {
$serverid = self::hash($host . ":" . $path . ":" . $i);
self::$_servers[] = array("host" => $host, "path" => $path, "weight" => $weight, "id" => $serverid, "timeout" => $timeout);
}
usort(self::$_servers, "self::_sort");
self::$_serverCt = count(self::$_servers);
}