PHP cal_days_in_month() Function

The PHP cal_days_in_month() function returns the number of days in the month of year for the specified calendar.

Syntax

cal_days_in_month(calendar, month, year)

Parameters

`calendar`	`Required.` Specify the calendar to use for calculation.
`month`	`Required.` Specify the month in the selected calendar.
`year`	`Required.` Specify the year in the selected calendar.

Return Value

Returns the length in days of the selected month in the given calendar.

Exceptions

NA.

Example:

The example below shows the usage of cal_days_in_month() function.

<?php
$days = cal_days_in_month(CAL_GREGORIAN, 8, 2015); 
echo "There were $days days in August 2015. \n";

$days = cal_days_in_month(CAL_JULIAN, 2, 2015); 
echo "There were $days days in February 2015. \n";

$days = cal_days_in_month(CAL_JEWISH, 2, 2016); 
echo "There were $days days in February 2016. \n";
?>

The output of the above code will be:

There were 31 days in August 2015. 
There were 28 days in February 2015. 
There were 29 days in February 2016.

❮ PHP Calendar Reference