//毫秒轉日期
function getMsecToMescdate($msectime)
{
$msectime = $msectime * 0.001;
if (strstr($msectime, '.')) {
sprintf("%01.3f", $msectime);
list($usec, $sec) = explode(".", $msectime);
$sec = str_pad($sec, 3, "0", STR_PAD_RIGHT);
} else {
$usec = $msectime;
}
$date = date("Y-m-d H:i:s", $usec);
return $date;
}