public static function line()
{
$mem = memory_get_usage();
$diffmem = memory_get_usage() - self::$lastmem;
self::$lastmem = $mem;
$args = func_get_args();
echo implode(" ", $args) . " [" . number_format($mem / 1024, 2) . "KB / " . number_format($diffmem / 1024, 2) . "KB]\n";
}