PHP cal_days_in_month() 函数

定义和用法

cal_days_in_month() 函数针对指定的年份和日历，返回一个月中的天数。

语法

cal_days_in_month(calendar,month,year)

例子

<?php
$d=cal_days_in_month(CAL_GREGORIAN,10,2005);
echo("There was $d days in October 2005");
?>

输出：

There was 31 days in October 2005