<?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);
                                        // c'est moche mais setTime de php ne prends pas en compte les ms 
                                        $strMilli = str_pad(strval($intMilli),3, '0', STR_PAD_LEFT);
                                        $dateIso = date("Y-m-d\TH:i:s",$intStamp).'.'.$strMilli;
		return $dateIso;
	}
}

?>