-
- /**
- * 日期-获取当月最后一天
- * @return int
- */
- public function get_lastday() {
- if($this->month==2) {
- $lastday = $this->is_leapyear($this->year) ? 29 : 28;
- } elseif($this->month==4 || $this->month==6 || $this->month==9 || $this->month==11) {
- $lastday = 30;
- } else {
- $lastday = 31;
- }
- return $lastday;
- }
-
- /**
- * php日期-是否是闰年
- * @return int
- */
- public function is_leapyear($year) {
- return date('L', $year);
- }
复制代码
例子,php 日期函数之计算2个日期的差值
-
- /**
- * php日期-计算2个日期的差值
- * @return int
- */
- public function get_difference($date, $new_date) {
- $date = strtotime($date);
- $new_date = strtotime($new_date);
- return abs(ceil(($date - $new_date)/86400));
- }
复制代码
|