break;
case "day":
$ret= ( mktime ( 0,0,0,$month2,$day2,$year2 ) -mktime ( 0,0,0,$month1,$day1,$year1 ) ) /
(
3600*24);
break;
case "hour":
$ret=
(
mktime
(
$hour2,0,0,$month2,$day2,$year2
)
-
mktime($hour1,0,0,$month1,$day1,$year1))/3600;
break;
case "min":
$ret=
(
mktime
(
$hour2,$min2,0,$month2,$day2,$year2
)
-
mktime($hour1,$min1,0,$month1,$day1,$year1))/60;
break;
case "sec":
$ret=$date2-$date1;
break;
default:
return $ret;
break;
}
return $ret;
}
}