This article mainly introduces the methods of PHP process control and mathematical operations. Interested friends can refer to it. I hope it will be helpful to everyone.
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; }
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