``` 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($s_date)) / (31536000)); echo "1、相差年数：".$year." 年<br/><br/>"; //月 $month = floor(($cha - $year * 31536000) / (2592000)); $month_total = floor($cha / 2592000); echo "2、相差月数：".$month." 月<br/><br/>";//除去年 echo "3、相差月数：".$month_total." 月<br/><br/>";//总月数 //日 $day_total = floor((strtotime($e_date)-strtotime($s_date))/86400); echo "4、相差总天数：".$day_total." 天<br/><br/>"; //时 $hour = floor((strtotime($e_date)-strtotime($s_date))%86400/3600); $hour_total = floor((strtotime($e_date)-strtotime($s_date)));//总相差N小时 echo "5、相差小时数：".$hour." 小时<br/><br/>"; echo "6、相差总小时数：".$hour_total." 小时<br/><br/>"; //分 $minute = floor((strtotime($e_date)-strtotime($s_date))%86400/60); $minute_total = floor((strtotime($e_date)-strtotime($s_date))/60); echo "7、相差分钟数：".$minute."分钟<br/><br/>"; echo "8、相差总分钟数：".$minute_total."分钟<br/><br/>"; //秒 $second = floor((strtotime($e_date)-strtotime($s_date))%86400%60); $second_total = floor((strtotime($e_date)-strtotime($s_date))); echo "9、相差秒数：".$second." 秒<br/><br/>"; echo "10、相差总秒数：".$second_total." 秒<br/><br/>"; } ```