function date_repeat_set_month_day in Date 7.2

Same name and namespace in other branches

1. 5.2 date_repeat/date_repeat_calc.inc \date_repeat_set_month_day()
2. 6.2 date_repeat/date_repeat_calc.inc \date_repeat_set_month_day()
3. 6 date_repeat/date_repeat_calc.inc \date_repeat_set_month_day()
4. 7.3 date_repeat/date_repeat_calc.inc \date_repeat_set_month_day()
5. 7 date_repeat/date_repeat_calc.inc \date_repeat_set_month_day()

Set a date object to a specific day of the month.

Example, date_set_month_day($date, 'Sunday', 2, '-') will reset $date to the second to last Sunday in the month. If $day is empty, will set to the number of days from the beginning or end of the month.

1 call to date_repeat_set_month_day()

_date_repeat_calc in date_repeat/date_repeat_calc.inc

Private implementation of date_repeat_calc().

File

date_repeat/date_repeat_calc.inc, line 520

Code to compute the dates that match an iCal RRULE.

Code

function date_repeat_set_month_day($date_in, $day, $count = 1, $direction = '+', $timezone = 'UTC', $modify_time = '') {
  if (is_object($date_in)) {
    $current_month = date_format($date_in, 'n');

    // Reset to the start of the month. We should be able to do this with
    // date_date_set(), but for some reason the date occasionally gets confused
    // if run through this function multiple times. It seems to work reliably
    // if we create a new object each time.
    $datetime = date_format($date_in, DATE_FORMAT_DATETIME);
    $datetime = substr_replace($datetime, '01', 8, 2);
    $date = new DateObject($datetime, $timezone);
    if ($direction == '-') {

      // For negative search, start from the end of the month.
      date_modify($date, '+1 month' . $modify_time);
    }
    else {

      // For positive search, back up one day to get outside the current month,
      // so we can catch the first of the month.
      date_modify($date, '-1 day' . $modify_time);
    }
    if (empty($day)) {
      date_modify($date, $direction . $count . ' days' . $modify_time);
    }
    else {

      // Use the English text for order, like First Sunday instead of +1 Sunday
      // to overcome PHP5 bug, (see #369020).
      $order = date_order();
      $step = $count <= 5 ? $order[$direction . $count] : $count;
      date_modify($date, $step . ' ' . $day . $modify_time);
    }

    // If that takes us outside the current month, don't go there.
    if (date_format($date, 'n') == $current_month) {
      return $date;
    }
  }
  return $date_in;
}