/**
* @param integer $dayOfMonth The day-of-month to check, validated as an integer.
* @param integer|null $monthOfYear An optional month-of-year to check against, fully validated.
* @param integer|null $year An optional year to check against, fully validated.
*
* @return void
*
* @throws DateTimeException If the day-of-month is not valid.
*/
public static function check($dayOfMonth, $monthOfYear = null, $year = null)
{
if ($dayOfMonth < 1 || $dayOfMonth > 31) {
throw DateTimeException::fieldNotInRange(self::NAME, $dayOfMonth, 1, 31);
}
if ($monthOfYear === null) {
return;
}
$monthLength = MonthOfYear::getLength($monthOfYear, $year);
if ($dayOfMonth > $monthLength) {
if ($dayOfMonth === 29) {
throw new DateTimeException("Invalid date February 29 as {$year} is not a leap year");
} else {
$monthName = MonthOfYear::getName($monthOfYear);
throw new DateTimeException("Invalid date {$monthName} {$dayOfMonth}");
}
}
}