/**
* Determines the number of days at a specified month/year.
*
* @param int The month
* @param int The year
* @return int Number of days
*
* @author Former03 GmbH :: Florian Lippert <*****@*****.**>
*/
function getDaysForMonth($month, $year)
{
if ((int) $month > 12) {
$year += (int) ($month / 12);
$month = $month % 12;
}
if ((int) $month == 0) {
$month = 12;
}
$months = array(1 => 31, 2 => 28, 3 => 31, 4 => 30, 5 => 31, 6 => 30, 7 => 31, 8 => 31, 9 => 30, 10 => 31, 11 => 30, 12 => 31);
if (getDaysForYear($month, $year) == 366) {
$months[2] = '29';
}
return $months[intval($month)];
}
/**
* Due to the weirdness in our calendar we need a special
* method for gathering the number days in an interval.
*
* @param int Length of interval
* @param string Type of interval, might be 'd' for day,'m' for month or 'y' for year
* @param array Date when service began, in array form: array( 'd' => int, 'm' => int, 'y' => int )
*
* @return int Number of days in the interval
*
* @author Former03 GmbH :: Florian Lippert <*****@*****.**>
*/
public function getDaysForInterval($interval_length, $interval_type, $service_date_begin_array)
{
$returnval = 0;
switch ($interval_type) {
case 'y':
for ($i = 1; $i <= $interval_length; ++$i) {
$returnval += getDaysForYear((int) $service_date_begin_array['m'], (int) $service_date_begin_array['y'] + ($i - 1));
}
break;
case 'm':
for ($i = 1; $i <= $interval_length; ++$i) {
$returnval += getDaysForMonth((int) $service_date_begin_array['m'] + ($i - 1), (int) $service_date_begin_array['y']);
}
break;
case 'd':
default:
$returnval = $interval_length;
break;
}
return $returnval;
}