PHP gets the number of days in a specified month, php gets the number of days in the month_PHP tutorial

PHP gets the number of days in the specified month, php gets the number of days in the month

A very practical php function that I suddenly discovered when I was writing an interface recently. Share it here:

cal_days_in_month(calender,$month,$year);

calender: calendar, constant, such as CAL_GREGORIAN (Gregorian calendar);

$month: specified month;

$year: specified year;

Return: Number of days

For example:

$monthday = cal_days_in_month(CAL_GREGORIAN,3,2016);

echo $monthday;

Output: 31