function weekdays_days_in_date_range in Weekdays field 7

Computes dates corresponding to the weekdays in a given date range.

Parameters

DateObject $start:

DateObject $end:

array $weekdays array of weekdays in iCal format.:

array $include dates to include, in DATE_FORMAT_DATE format.:

array $exclude dates to exclude, in DATE_FORMAT_DATE format.:

Return value

array array of dates in DATE_FORMAT_DATE format.

1 call to weekdays_days_in_date_range()

weekdays_date_restrictions_allowed_values_page_callback in modules/weekdays_date_restrictions/weekdays_date_restrictions.module

Implements allowed_values_page_callback callback.

File

./weekdays.module, line 263

Code

function weekdays_days_in_date_range(DateObject $start, DateObject $end, array $weekdays, array $include = array(), array $exclude = array()) {

  // It may happen that week day of $start is not part of $weekdays.
  // In that case we need to increase $start until it matches a weekday.
  // This is a workaround to https://drupal.org/node/1365516
  $dow = array_keys(date_repeat_dow_day_options(TRUE));
  $wday = $dow[date_day_of_week($start)];
  while (!in_array($wday, $weekdays) && $start < $end) {
    $start
      ->modify('+1 day');
    $wday = $dow[date_day_of_week($start)];
  }
  if (!empty($weekdays)) {
    $rrule = 'RRULE:FREQ=WEEKLY;INTERVAL=1;BYDAY=' . implode(',', $weekdays) . ';';
    $dates = date_repeat_calc($rrule, (string) $start, (string) $end);
  }
  else {
    $dates = array();
  }

  // Strip hours from dates.
  foreach ($dates as $date) {
    $date = substr($date, 0, 10);
    if (!in_array($date, $exclude)) {
      $include[] = $date;
    }
  }
  return $include;
}