计算格式为YYYY-MM-DD HH:ii:ss的两个时间，相差多少年、多少月、多少日、多少小时、多少分钟、多少秒？

柔光的暖阳◎ 2022-06-08 07:24 303阅读 0赞

<?php
        function diffDateTime($datetime1,$datetime2){
            $preg = "/^\d{4}\-\d{2}\-\d{2}(\s)+\d{2}:\d{2}:\d{2}$/";//验证时间格式是否为YYYY-MM-DD HH:ii:ss
            if(!preg_match($preg, $datetime1) || !preg_match($preg, $datetime2)) exit('Format Error');
            if(strtotime($datetime1) > strtotime($datetime2)){  
                $tmp = $datetime2;  
                $datetime2 = $datetime1;  
                $datetime1 = $tmp;  
            }
            list($date1,$time1) = explode(' ',$datetime1);  
            list($date2,$time2) = explode(' ',$datetime2);
            list($year1,$month1,$day1) = explode('-',$date1);
            list($year2,$month2,$day2) = explode('-',$date2);
            if(!checkdate($month1,$day1,$year1) || !checkdate($month2,$day2,$year2)) exit('Invalid Date');
            $diff_year = $year2 - $year1;
            $diff_month = $month2 - $month1;  
            $diff_day = $day2 - $day1;
            if($diff_day < 0){  
                $diff_day += (int)date('t',strtotime("-1 month $date2"));  
                $diff_month--;  
            }  
            if($diff_month < 0){  
                $diff_month += 12;  
                $diff_year--;  
            }  
            //计算时间差
            $timediff = abs(strtotime($time2) - strtotime($time1));
            //计算小时数
            $diff_hour = intval($timediff / 3600);
            //计算分钟数
            $remain = $timediff % 3600;
            $diff_minute = intval($remain / 60);
            //计算秒数
            $diff_second = $remain % 60;
            return array(
                'diff_year' => $diff_year,
                'diff_month' => $diff_month,
                'diff_day' => $diff_day,
                'diff_hour' => $diff_hour,
                'diff_minute' => $diff_minute,
                'diff_second' => $diff_second
            );  
        }
    
        var_dump(diffDateTime('2019-02-27 12:20:15','2017-02-02 12:19:55'));

输出：

array (size=6)  
  'diff\_year' => int 2  
  'diff\_month' => int 0  
  'diff\_day' => int 25  
  'diff\_hour' => int 0  
  'diff\_minute' => int 0  
  'diff\_second' => int 20