/**
* Converts Julian Day Count to Gregorian date.
*
* Shim implementation of \JDToGregorian()
*
* @link https://php.net/JDToGregorian
*
* @param int $julianday A Julian Day number
*
* @return string A string of the form "month/day/year"
*/
public static function jdToGregorian($julianday)
{
$gregorian = new GregorianCalendar();
$cal = $gregorian->calFromJd($julianday);
return $cal['date'];
}
/**
* Initializes the 100-year window that dates with 2-digit years are
* considered to fall within so that its start date is 80 years before the
* current time.
*
* @author Dominik del Bondio <*****@*****.**>
* @author The ICU Project
* @since 0.11.0
*/
private static function initializeSystemDefaultCentury()
{
// initialize systemDefaultCentury and systemDefaultCenturyYear based
// on the current time. They'll be set to 80 years before
// the current time.
// No point in locking as it should be idempotent.
if (self::$fgSystemDefaultCenturyStart == self::$fgSystemDefaultCentury) {
$calendar = new GregorianCalendar();
$calendar->setTime(AgaviCalendar::getNow());
$calendar->add(AgaviDateDefinitions::YEAR, -80);
$newStart = $calendar->getTime();
$newYear = $calendar->get(AgaviDateDefinitions::YEAR);
self::$fgSystemDefaultCenturyStart = $newStart;
self::$fgSystemDefaultCenturyStartYear = $newYear;
}
}