``` public function time_cha() { $s_date ="2015-12-12 16:00:00"; $e_date ="2016-12-13 18:00:00"; $cha = strtotime($e_date)-strtotime($s_date); //年 $year = floor((strtotime($e_date)-strtotime($s_date)) / (31536000)); echo "1、相差年數：".$year." 年<br/><br/>"; //月 $month = floor(($cha - $year * 31536000) / (2592000)); $month_total = floor($cha / 2592000); echo "2、相差月數：".$month." 月<br/><br/>";//除去年 echo "3、相差月數：".$month_total." 月<br/><br/>";//總月數 //日 $day_total = floor((strtotime($e_date)-strtotime($s_date))/86400); echo "4、相差總天數：".$day_total." 天<br/><br/>"; //時 $hour = floor((strtotime($e_date)-strtotime($s_date))%86400/3600); $hour_total = floor((strtotime($e_date)-strtotime($s_date)));//總相差N小時 echo "5、相差小時數：".$hour." 小時<br/><br/>"; echo "6、相差總小時數：".$hour_total." 小時<br/><br/>"; //分 $minute = floor((strtotime($e_date)-strtotime($s_date))%86400/60); $minute_total = floor((strtotime($e_date)-strtotime($s_date))/60); echo "7、相差分鐘數：".$minute."分鐘<br/><br/>"; echo "8、相差總分鐘數：".$minute_total."分鐘<br/><br/>"; //秒 $second = floor((strtotime($e_date)-strtotime($s_date))%86400%60); $second_total = floor((strtotime($e_date)-strtotime($s_date))); echo "9、相差秒數：".$second." 秒<br/><br/>"; echo "10、相差總秒數：".$second_total." 秒<br/><br/>"; } ```