PHP calculates the number of years, months, days, and total days between two dates

1. Solve how to determine the number of days between two dates in PHP and convert them into months and years.

DiffDate("2021-01-06","2023-06-16");


// 计算两个日期相差 年 月 日 
function DiffDate($date1, $date2) { 
  if (strtotime($date1) > strtotime($date2)) { 
    $ymd = $date2; 
    $date2 = $date1; 
    $date1 = $ymd; 
  } 
  list($y1, $m1, $d1) = explode('-', $date1); 
  list($y2, $m2, $d2) = explode('-', $date2); 
  $y = $m = $d = $_m = 0; 
  $math = ($y2 - $y1) * 12 + $m2 - $m1; //相差总月数
  $y = round($math / 12);  //相差年数
  $m = intval($math % 12);  //相差月数
  $mm = $math; //相差总月数
  $d = (mktime(0, 0, 0, $m2, $d2, $y2) - mktime(0, 0, 0, $m2, $d1, $y2)) / 86400; 
  if ($d < 0) { 
    $m -= 1; 
    $d += date('j', mktime(0, 0, 0, $m2, 0, $y2)); 
  } 
  $m < 0 && $y -= 1; 
  return array($y, $m, $d,$mm); 
} 

2. Directly subtract the values ​​after using strtotime() to calculate the total difference in days, hours and seconds.

$one = strtotime('2011-12-08 07:02:40');//开始时间 时间戳
$tow = strtotime('2011-12-25 00:00:00');//结束时间 时间戳
$cle = $tow - $one; //得出时间戳差值

/* 这个只是提示
echo floor($cle/60); //得出一共多少分钟
echo floor($cle/3600); //得出一共多少小时
echo floor($cle/3600/24); //得出一共多少天
*/

/*Rming()函数，即舍去法取整*/
$d = floor($cle/3600/24);
$h = floor(($cle%(3600*24))/3600);  //%取余
$m = floor(($cle%(3600*24))%3600/60);
$s = floor(($cle%(3600*24))%60);
echo "两个时间相差 $d 天 $h 小时 $m 分 $s 秒"

3. Calculate the number of years, months, and days between two dates, using the PHP class library

/**

 * function：计算两个日期相隔多少年，多少月，多少天

 * param string $date1[格式如：2011-11-5]

 * param string $date2[格式如：2012-12-01]

 * return array array('年','月','日');

 */

function diffDate($date1,$date2)

{

    $datetime1 = new \DateTime($date1);

    $datetime2 = new \DateTime($date2);

    $interval = $datetime1->diff($datetime2);

    $time['y']         = $interval->format('%Y');

    $time['m']         = $interval->format('%m');

    $time['d']         = $interval->format('%d');

    $time['h']         = $interval->format('%H');

    $time['i']         = $interval->format('%i');

    $time['s']         = $interval->format('%s');

    $time['a']         = $interval->format('%a');    // 两个时间相差总天数

    return $time;

}

 

 

# 使用实例

$sss = diffDate('2020-01-21 12:30:30', '2023-06-18 15:00:00');

print_r($sss);

4.Method 3

  /**
       * 计算时间的年月日
       *
       */
      function diffDate($date1,$date2){ 
          $datestart= date('Y-m-d',strtotime($date1));
          if(strtotime($datestart)>strtotime($date2)){ 
              $tmp=$date2; 
              $date2=$datestart; 
             $datestart=$tmp; 
          } 
         list($Y1,$m1,$d1)=explode('-',$datestart); 
         list($Y2,$m2,$d2)=explode('-',$date2); 
         $Y=$Y2-$Y1; 
         $m=$m2-$m1; 
         $d=$d2-$d1; 
         if($d<0){ 
             $d+=(int)date('t',strtotime("-1 month $date2")); 
             $m--; 
         } 
         if($m<0){ 
             $m+=12; 
             $y--; 
         } 
         if($Y == 0){
             return $m.'个月'.$d.'天';
         }elseif($Y == 0 && $m == 0){
             return $d.'天';
         }else{
             return $Y.'年'.$m.'个月'.$d.'天';
         }
     } 
 
 $catdata="2002-09-28"; //计算时间
 echo diffDate($catdata,date('Y-m-d',time()));