public static function jewishToJd($month, $day, $year)
    {
        if ($year <= 0) {
            return 0;
        } else {
            return self::$jewish_calendar->ymdToJd($year, $month, $day);
        }
    }
public static function jewishToJd($month, $day, $year)
    {
        if ($year <= 0) {
            return 0;
        } else {
            return self::$jewish_calendar->ymdToJd($year, $month, $day);
        }
    }
public static function jewishToJd ( $ month , $ day , $ year ) { if ( $ year <= 0 ) { return 0 ; } else { return self :: $ jewish_calendar -> ymdToJd ( $ year , $ month , $ day ) ; } }
Converts a date in the Jewish Calendar to Julian Day Count.

Shim implementation of JewishToJD()

@link https://php.net/JewishToJD

@param int $month
@param int $day
@param int $year

@return int
Converts a date in the Jewish Calendar to Julian Day Count .