/**
* Converts a Gregorian date to Julian Day Count.
*
* Shim implementation of \GregorianToJD()
*
* @link https://php.net/GregorianToJD
*
* @param int $month
* @param int $day
* @param int $year
*
* @return int
*/
public static function gregorianToJd($month, $day, $year)
{
if ($year == 0) {
return 0;
} else {
$gregorian = new GregorianCalendar();
return $gregorian->ymdToJd($year, $month, $day);
}
}
