cal_days_in_month
(PHP 4 >= 4.0.7, PHP 5)
cal_days_in_month — Return the number of days in a month for a given year and calendar
说明
int cal_days_in_month
( int $calendar
, int $month
, int $year
)
This function will return the number of days in the month of year for the specified calendar .
参数
- calendar
-
Calendar to use for calculation
- month
-
Month in the selected calendar
- year
-
Year in the selected calendar
返回值
The length in days of the selected month in the given calendar
范例
Example#1 cal_days_in_month() example
<?php
$num = cal_days_in_month(CAL_GREGORIAN, 8, 2003); // 31
echo "There was $num days in August 2003";
?>
CDN