PHP method to get the maximum number of days (last day) of a certain month, the last day of the month_PHP tutorial

How to get the maximum number of days (last day) of a certain month in PHP, the last day of the month

The example in this article describes the method of getting the maximum number of days (last day) of a certain month in PHP. Share it with everyone for your reference. The details are as follows:

//获取 某个月的最大天数（最后一天）
function getMonthLastDay($month, $year) {
 switch ($month) {
  case 4 :
  case 6 :
  case 9 :
  case 11 :
   $days = 30;
   break;
  case 2 :
   if ($year % 4 == 0) {
    if ($year % 100 == 0) {
     $days = $year % 400 == 0 ? 29 : 28;
    } else {
     $days = 29;
    }
   } else {
    $days = 28;
   }
   break;
  default :
   $days = 31;
   break;
 }
 return $days;
}

I hope this article will be helpful to everyone’s PHP programming design.

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