// date to time
$time = strtotime($date);



// time to date
function time_to_date($add){
	$time =  $add;
	$date = getdate($time);
	$day = $date['mday'];
	$mon = $date['mon'];
	$year = $date['year'];
	$date = $year."-".$mon."-".$day;
	return $date;
}
echo time_to_date($time);
