代码如下:
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 $lastday;
}
/**
* 日期-是否是闰年
* @return int
*/
public function is_leapyear($year) {
return date('L',$year);
}
原文链接：https://www.f2er.com/php/22734.html