php 한글 메뉴얼 도움말 검색 사이트 Return the number of days in a month for a given year and calendar [function.cal-days-in-month]

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.

The length in days of the selected month in the given calendar

Example #1 cal_days_in_month() example


<?php
$number = cal_days_in_month(CAL_GREGORIAN, 8, 2003); // 31
echo "There were {$number} days in August 2003";
?>