cal_days_in_month() • How To Get the Number of Days in any Month of any Year?

The cal_days_in_month() function returns the number of days in a specific month of a year. This is the predefined function of PHP.

cal_days_in_month() function syntax

cal_days_in_month(calendar_name,month,year);

Example : -

<?php

$days = cal_days_in_month(CAL_GREGORIAN,2,2020);

echo $days;

?>

Know all the number of days in any year

<?php

$days = 0;

for($i=1;$i<=12;$i++)
{
	$days += cal_days_in_month(CAL_GREGORIAN,$i,2020);
}
	echo $days;

?>

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