function date_calc_begin_of_week in Date 6.2

Same name and namespace in other branches

1. 5.2 date_php4/date_php4_calc.inc \date_calc_begin_of_week()
2. 6 date_php4/date_php4_calc.inc \date_calc_begin_of_week()

Find the month day of the beginning of week for given date, using variable_get('date_first_day', 1). Can return weekday of prev month.

Parameters

int $day: The day of the month.

int $month: The month.

int $year: The 4 digit year. Do not add leading 0's for years prior to 1000.

string $format: The string indicating how to format the output.

Return value

string The date in the desired format.

3 calls to date_calc_begin_of_week()

date_calc_begin_of_next_week in date_php4/date_php4_calc.inc

Find the month day of the beginning of week after given date, using variable_get('date_first_day', 1). Can return weekday of next month.

date_calc_begin_of_prev_week in date_php4/date_php4_calc.inc

Find the month day of the beginning of week before given date, using variable_get('date_first_day', 1). Can return weekday of prev month.

date_calc_get_calendar_week in date_php4/date_php4_calc.inc

Return an array with days in week.

File

date_php4/date_php4_calc.inc, line 1075

Code

function date_calc_begin_of_week($day = 0, $month = 0, $year = 0, $format = DATE_CALC_FORMAT) {
  if (empty($year)) {
    $year = date_calc_get_year();
  }
  if (empty($month)) {
    $month = date_calc_get_month();
  }
  if (empty($day)) {
    $day = date_calc_get_day();
  }
  $this_weekday = date_dow($day, $month, $year);
  $interval = (7 - variable_get('date_first_day', 1) + $this_weekday) % 7;
  return date_calc_days_to_date(date_calc_date_to_days($day, $month, $year) - $interval, $format);
}