Calculating the number of Saturdays and Sundays

Question

How can I calculate the number of Saturdays and Sundays between two dates in php?

Is there any inbuilt function for that purpose?

Answer 1

You can calculate it mathematically like this - Based on Roland's Answer

private function getNumberOfWeekendDays(\DateTimeInterface $startDate, \DateTimeInterface $endDate): int
{
    $startNumber = (int) $startDate->format('N');
    $endNumber = (int) $endDate->format('N');
    $daysBetweenStartAndEnd = $endDate->diff($startDate)->d;

    $weekendDays = (int) (2 * ($daysBetweenStartAndEnd + $startNumber) / 7);
    $weekendDays = $weekendDays - ($startNumber == 7 ? 1 : 0) - ($endNumber == 7 ?  1 :  0);

    return $weekendDays;
}