public static function getDaysOfWeek(): array
    {
        return [
            self::WEEK_DAY_MONDAY,
            self::WEEK_DAY_TUESDAY,
            self::WEEK_DAY_WEDNESDAY,
            self::WEEK_DAY_THURSDAY,
            self::WEEK_DAY_FRIDAY,
            self::WEEK_DAY_SATURDAY,
            self::WEEK_DAY_SUNDAY,
        ];
    }
public static function getDaysOfWeek(): array
    {
        return [
            self::WEEK_DAY_MONDAY,
            self::WEEK_DAY_TUESDAY,
            self::WEEK_DAY_WEDNESDAY,
            self::WEEK_DAY_THURSDAY,
            self::WEEK_DAY_FRIDAY,
            self::WEEK_DAY_SATURDAY,
            self::WEEK_DAY_SUNDAY,
        ];
    }
public static function getDaysOfWeek ( ) : array { return [ self :: WEEK_DAY_MONDAY , self :: WEEK_DAY_TUESDAY , self :: WEEK_DAY_WEDNESDAY , self :: WEEK_DAY_THURSDAY , self :: WEEK_DAY_FRIDAY , self :: WEEK_DAY_SATURDAY , self :: WEEK_DAY_SUNDAY , ] ; }
Get the days of week.

@return integer[]
Get the days of week .