php日期，php_PHP教程

php 日期，php

 1     /**
 2      *    日期-获取当月最后一天
 3      *  @return int
 4      */
 5     public function get_lastday() {
 6         if($this->month==2) {
 7             $lastday = $this->is_leapyear($this->year) ? 29 : 28;
 8         } elseif($this->month==4 || $this->month==6 || $this->month==9 || $this->month==11) {
 9             $lastday = 30;
10         } else {
11             $lastday = 31;
12         }
13         return $lastday;
14     }
15     
16 
17     
18     /**
19      *    日期-是否是闰年
20      *  @return int
21      */
22     public function is_leapyear($year) {
23         return date('L', $year);
24     }

http://www.bkjia.com/PHPjc/951421.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/951421.htmlTechArticlephp 日期，php 1 /* * 2 * 日期-获取当月最后一天 3 * @return int 4 */ 5 public function get_lastday() { 6 if ( $this -month==2 ) { 7 $lastday = $this -is_leapyear( $this...