PHP array_change_key_case() Function
Example
Get the number of days in a month based on the specified year and calendar:
<?php $d=cal_days_in_month(CAL_GREGORIAN,2,2016); echo "There are $d days in February 2016."; ?>
Definition and Usage
The cal_days_in_month() function returns the number of days in a month for the specified year and calendar.
Syntax
cal_days_in_month(calendar,month,year);
| Parameters | Description |
|---|---|
| calendar | Required. Specifies the calendar to be used. See PHP Calendar Constants. |
| month | Required. Specifies the month in the selected calendar. |
| year | Required. Specifies the year in the selected calendar. |
Technical Details
| Return Value: | Returns the number of days in the specified month of the given year and calendar. |
|---|---|
| PHP Version: | 4.1+ |
