<?php

class TimeUtils
{
	public static function iso2stamp($iso) {
		try {
			$time = new DateTime($iso);
		}
		catch (Exception $e) {
			$time = new DateTime('1970-01-01T00:00:00Z');
		}
		$stamp = $time->format('U.u');
		unset($time);
		return $stamp;
	}

	public static function stamp2iso($stamp) {
                                        $intStamp = floor($stamp);
                                        $intMilli = round(($stamp-$intStamp)*1000);
                                        $isoDate = new DateTime(date($intStamp));
                                        $isoDate.setTime(date('H',$intStam), date('i',$intStam), date('s',$intStam), $intMilli);
                                        error_log($isoDate);
		return  $isoDate;
	}
}

?>