/**
* @internal
* @param LocalDate $date
* @return bool|int
*/
public static function getWeek(LocalDate $date)
{
$dow0 = $date->getDayOfWeek()->getValue() - 1;
$doy0 = $date->getDayOfYear() - 1;
$doyThu0 = $doy0 + (3 - $dow0);
// adjust to mid-week Thursday (which is 3 indexed from zero)
$alignedWeek = Math::div($doyThu0, 7);
$firstThuDoy0 = $doyThu0 - $alignedWeek * 7;
$firstMonDoy0 = $firstThuDoy0 - 3;
if ($firstMonDoy0 < -3) {
$firstMonDoy0 += 7;
}
if ($doy0 < $firstMonDoy0) {
return self::getWeekRange($date->withDayOfYear(180)->minusYears(1))->getMaximum();
}
$week = Math::div($doy0 - $firstMonDoy0, 7) + 1;
if ($week == 53) {
if (($firstMonDoy0 == -3 || $firstMonDoy0 == -2 && $date->isLeapYear()) == false) {
$week = 1;
}
}
return $week;
}
/**
* Returns a copy of this {@code LocalDateTime} with the day-of-year altered.
* <p>
* If the resulting date-time is invalid, an exception is thrown.
* <p>
* This instance is immutable and unaffected by this method call.
*
* @param int $dayOfYear the day-of-year to set in the result, from 1 to 365-366
* @return LocalDateTime a {@code LocalDateTime} based on this date with the requested day, not null
* @throws DateTimeException if the day-of-year value is invalid,
* or if the day-of-year is invalid for the year
*/
public function withDayOfYear($dayOfYear)
{
return $this->_with($this->date->withDayOfYear($dayOfYear), $this->time);
}
