/**
* @param int $nDays
*
* @return static
*/
public static function fromInteger($nDays)
{
$i = MiscHelpers::binarySearch($nDays, static::$fiveLeapYearsToInt);
/** @var static $upper upper-bound*/
$upper = new static(static::$fiveLeapYears[$i], 12, 30);
/** @var int $delta2 the difference between upper-bound ($upper) and the input ($nDays) in days*/
$delta2 = $upper->toInteger() - $nDays;
if (!$delta2) {
return $upper;
}
if ($delta2 <= 365) {
$year = $upper->getYear();
/** @var static $lower lower-bound */
$lower = new static($year - 1, 12, 29);
/** @var int $delta1 the difference between the input ($nDays) and lower-bound ($lower) in days */
$delta1 = $nDays - $lower->toInteger();
$month = MiscHelpers::binarySearch($delta1, static::$cumulativeDaysInMonth);
$day = $delta1 - static::$cumulativeDaysInMonth[$month - 1];
return new static($year, $month, $day);
}
if ($delta2 <= 5 * 365) {
$lower = new static($upper->getYear() - 5, 12, 30);
$delta1 = $nDays - $lower->toInteger();
$year = $lower->getYear() + ceil($delta1 / 365);
$lower = new static($year, 1, 1);
$delta1 = $nDays - $lower->toInteger() + 1;
$month = MiscHelpers::binarySearch($delta1, static::$cumulativeDaysInMonth);
$day = $delta1 - static::$cumulativeDaysInMonth[$month - 1];
return new static($year, $month, $day);
}
/** @var static $lower last 5-leap year*/
$lower = new static(static::$fiveLeapYears[$i - 1] + 1, 1, 1);
$delta1 = $nDays - $lower->toInteger() + 1;
/** @var static $lower last leap year*/
$lower = new static($lower->getYear() + 4 * (int) ($delta1 / (4 * 365 + 1)), 1, 1);
$delta1 = $nDays - $lower->toInteger() + 1;
$year = $lower->getYear() - 1 + ceil($delta1 / 365);
$lower = new static($year, 1, 1);
$delta1 = $nDays - $lower->toInteger() + 1;
$month = MiscHelpers::binarySearch($delta1, static::$cumulativeDaysInMonth);
$day = $delta1 - static::$cumulativeDaysInMonth[$month - 1];
return new static($year, $month, $day);
}
/**
* Make and return a new ExpressiveDate instance with defined year, month, day, hour, minute, and second.
*
* @param int $year
* @param int $month
* @param int $day
* @param int $hour
* @param int $minute
* @param int $second
* @param string|DateTimeZone $timezone
* @return ExpressiveDate
*/
public static function makeFromDateTime($year = null, $month = null, $day = null, $hour = null, $minute = null, $second = null, $timezone = null)
{
$date = new static(null, $timezone);
$date->setDate($year ?: $date->getYear(), $month ?: $date->getMonth(), $day ?: $date->getDay());
// If no hour was given then we'll default the minute and second to the current
// minute and second. If a date was given and minute or second are null then
// we'll set them to 0, mimicking PHPs behaviour.
if (is_null($hour)) {
$minute = $minute ?: $date->getMinute();
$second = $second ?: $date->getSecond();
} else {
$minute = $minute ?: 0;
$second = $second ?: 0;
}
$date->setTime($hour ?: $date->getHour(), $minute, $second);
return $date;
}
