/** * Gets a given occurence on a given day-of-week. * * @param int $curdate The current timestamp of an occurence. * @param int $day_of_week The index of a given day-of-week. * @param int $week_of_month The index of a given week-of-month. * * @return int The timestamp of the requested occurrence. */ private function getNthDayOfWeek($curdate, $day_of_week, $week_of_month) { if ($week_of_month == -1) { // LAST WEEK $nextdate = Tribe__Date_Utils::get_last_day_of_week_in_month($curdate, $day_of_week); // If the date returned above is the same as the date we're starting from // move on to the next month by interval to consider. if ($curdate == $nextdate) { $curdate = mktime(0, 0, 0, date('n', $curdate) + $this->months_between, 1, date('Y', $curdate)); $nextdate = Tribe__Date_Utils::get_last_day_of_week_in_month($curdate, $day_of_week); } return $nextdate; } else { // get the first occurrence of the requested day of the week from the requested $curdate's month $first_occurring_day_of_week = Tribe__Date_Utils::get_first_day_of_week_in_month($curdate, $day_of_week); // get that day of the week in the requested nth week $maybe_date = strtotime(date(Tribe__Events__Pro__Date_Series_Rules__Rules_Interface::DATE_FORMAT, $first_occurring_day_of_week) . ' + ' . ($week_of_month - 1) . ' weeks'); // if $maybe_date equals or is before the $curdate, then try next month // (this should only be true if $week_of_month is 1) if (date(Tribe__Events__Pro__Date_Series_Rules__Rules_Interface::DATE_ONLY_FORMAT, $maybe_date) <= date(Tribe__Events__Pro__Date_Series_Rules__Rules_Interface::DATE_ONLY_FORMAT, $curdate)) { // get the first day of the next month according to $this->months_between $next_month = mktime(0, 0, 0, date('n', $curdate) + $this->months_between, 1, date('Y', $curdate)); // Get the first occurrence of the requested day of the week from $next_month's month $first_occurring_day_of_week = Tribe__Date_Utils::get_first_day_of_week_in_month($next_month, $day_of_week); // Get that day of the week in the requested nth week $maybe_date = strtotime(date(Tribe__Events__Pro__Date_Series_Rules__Rules_Interface::DATE_FORMAT, $first_occurring_day_of_week) . ' + ' . ($week_of_month - 1) . ' weeks'); } // if $maybe_date doesn't have the same month as $first_occurring_day_of_week, keep incrementing by $this->months_between // until they do, but don't infinitely loop past the 'recurrenceMaxMonthsAfter' setting $i = 0; while (date('n', $maybe_date) != date('n', $first_occurring_day_of_week) && $i <= tribe_get_option('recurrenceMaxMonthsAfter', 24)) { $next_month = mktime(0, 0, 0, date('n', $first_occurring_day_of_week) + $this->months_between, 1, date('Y', $first_occurring_day_of_week)); $first_occurring_day_of_week = Tribe__Date_Utils::get_first_day_of_week_in_month($next_month, $day_of_week); $maybe_date = strtotime(date(Tribe__Events__Pro__Date_Series_Rules__Rules_Interface::DATE_FORMAT, $first_occurring_day_of_week) . ' + ' . ($week_of_month - 1) . ' weeks'); $i += $this->months_between; } return $maybe_date; } }
/** * Get the timestamp of the next upcoming Nth day of month. * * @param int $curdate The current occurrence's timestamp * @param int|array $days_of_week Index(-es) of the possible day(s)-of-week the next instance may land on * @param int|array $weeks_of_month Index(-es) of the possible week(s) of the month the next instance may land on * @param int|array $months_of_year Index(-es) of the possible month(s) of the year the next instance may land on * * @return int|false The timestamp of the next occurrence on the nth day of the month or false */ private function getNthDayOfMonth($curdate, $days_of_week, $weeks_of_month, $months_of_year) { // Cast to arrays for consistency $days_of_week = (array) $days_of_week; $weeks_of_month = (array) $weeks_of_month; $months_of_year = (array) $months_of_year; // Obtain the hour, minute and second of $curdate for later comparison $cur_hour = (int) date('G', $curdate); $cur_minute = (int) date('i', $curdate); $cur_second = (int) date('s', $curdate); // Sort and rotate the arrays to give us a sensible starting point $this->sort_and_rotate_int_array($days_of_week, (int) date('N', $curdate)); $this->sort_and_rotate_int_array($months_of_year, (int) date('n', $curdate)); sort($weeks_of_month); $weeks_of_month = array_map('intval', $weeks_of_month); // The next occurence must take place this year or the next applicable year $year = (int) date('Y', $curdate); $years = array($year, $year + $this->years_between); // Examine each possible year and month foreach ($years as $year) { foreach ($months_of_year as $month) { // If we are behind $curdate's month and year then keep advancing if ($year <= date('Y', $curdate) && $month < date('n', $curdate)) { continue; } foreach ($weeks_of_month as $nth_week) { foreach ($days_of_week as $day) { // Determine the date of the first of these days (ie, the date of the first Tuesday this month) $start_of_month = mktime(0, 0, 0, $month, 1, $year); $first_date = Tribe__Date_Utils::get_first_day_of_week_in_month($start_of_month, $day); $day_of_month = (int) date('j', $first_date); // Add the relevant number of weeks $week = $nth_week > 0 ? $nth_week : abs($nth_week); $direction = $nth_week > 0 ? 1 : -1; $day_of_month = date('j', Tribe__Date_Utils::get_weekday_timestamp($day, $week, $month, $year, $direction)); // Form a timestamp representing this day of the week in the appropriate week of the month $timestamp = mktime($cur_hour, $cur_minute, $cur_second, $month, $day_of_month, $year); // If we got a valid timestamp that is ahead of $curdate, we have a winner if ($timestamp && $timestamp > $curdate) { return $timestamp; } } } } } // No match? return false; }