protected function getSections(): array
    {
        $sections = explode($this->getDivider(), $this->getNotation());
        foreach ($sections as $index => $section) {
            $sections[$index] = explode($this->getSeparator(), $section);
        }

        return $sections;
    }
protected function getSections(): array
    {
        $sections = explode($this->getDivider(), $this->getNotation());
        foreach ($sections as $index => $section) {
            $sections[$index] = explode($this->getSeparator(), $section);
        }

        return $sections;
    }
protected function getSections ( ) : array { $ sections = explode ( $ this -> getDivider ( ) , $ this -> getNotation ( ) ) ; foreach ( $ sections as $ index => $ section ) { $ sections [ $ index ] = explode ( $ this -> getSeparator ( ) , $ section ) ; } return $ sections ; }
Get exploded notation string.

@return array
Get exploded notation string .