Tribe__Date_Utils::get_weekday_timestamp( int $day_of_week, int $week_in_month, int $month, int $year, int $week_direction = 1 )

Gets the timestamp of a day in week, month and year context.

Contents

Kudos to icedwater StackOverflow user in his answer.

Usage examples: "The second Wednesday of March 2015" – get_day_timestamp( 3, 2, 3, 2015, 1) "The last Friday of December 2015" – get_day_timestamp( 5, 1, 12, 2015, -1) "The first Monday of April 2016 – get_day_timestamp( 1, 1, 4, 2016, 1) "The penultimate Thursday of January 2012" – get_day_timestamp( 4, 2, 1, 2012, -1)

Parameters

$day_of_week

(int) (Required) The day representing the number in the week, Monday is 1, Tuesday is 2, Sunday is 7

$week_in_month

(int) (Required) The week number in the month; first week is 1, second week is 2; when direction is reverse then 1 is last week of the month, 2 is penultimate week of the month and so on.

$month

(int) (Required) The month number in the year, January is 1

$year

(int) (Required) The year number, e.g. "2015"

$week_direction

(int) (Optional) Either 1 or -1; the direction for the search referring to the week, defaults to 1 to specify weeks in natural order so: $week_direction 1 and $week_in_month 1 means "first week of the month" $week_direction 1 and $week_in_month 3 means "third week of the month" $week_direction -1 and $week_in_month 1 means "last week of the month" $week_direction -1 and $week_in_month 2 means "penultimmate week of the month"

Default value: 1

Top ↑

Return

(int) The day timestamp

Top ↑

Source

File: src/Tribe/Date_Utils.php 

		public static function get_weekday_timestamp( $day_of_week, $week_in_month, $month, $year, $week_direction = 1 ) {
			if (
				! (
					is_numeric( $day_of_week )
					&& is_numeric( $week_in_month )
					&& is_numeric( $month )
					&& is_numeric( $year )
					&& is_numeric( $week_direction )
					&& in_array( $week_direction, array( - 1, 1 ) )
				)
			) {
				return false;
			}

			if ( $week_direction > 0 ) {
				$startday = 1;
			} else {
				$startday = date( 't', mktime( 0, 0, 0, $month, 1, $year ) );
			}

			$start   = mktime( 0, 0, 0, $month, $startday, $year );
			$weekday = date( 'N', $start );

			if ( $week_direction * $day_of_week >= $week_direction * $weekday ) {
				$offset = - $week_direction * 7;
			} else {
				$offset = 0;
			}

			$offset += $week_direction * ( $week_in_month * 7 ) + ( $day_of_week - $weekday );

			return mktime( 0, 0, 0, $month, $startday + $offset, $year );
		}

Expand full source code Collapse full source code