mm2000

function toDuration($start_datetime, $end_datetime) {				echo $start_datetime . "\n";		echo $end_datetime . "\n";				$start_datetime = explode(' ', $start_datetime);		$end_datetime  = explode(' ', $end_datetime);				$date['start'] = explode('-', $start_datetime[0]);		$date['end']   = explode('-', $end_datetime[0]);		$time['start'] = explode(':', $start_datetime[1]);		$time['end']   = explode(':', $end_datetime[1]);		echo date("H:i:s", mktime($time['end'][0], $time['end'][1], $time['end'][2], $date['end'][1], $date['end'][0], $date['end'][2]) - mktime($time['start'][0], $time['start'][1], $time['start'][2], $date['start'][1], $date['start'][0], $date['start'][2]));// 		print_r($date);// 		print_r($time);		return 19;	}