public static function orderBy(array $tokens, array $content) {
        if (empty($tokens['ORDER'])) return $content;

        $sortingRules = array_map(function($token) use ($content) {
            return [
                end($token['no_quotes']['parts']),
                $token['direction']
            ];
        }, $tokens['ORDER']);

        $reducedSortingRules = array_reduce($sortingRules, 'array_merge', []);
        $sortArgs            = array_map(function($value) use ($content) {
            if ($value === 'ASC')  return SORT_ASC;
            if ($value === 'DESC') return SORT_DESC;

            $contents = [];
            foreach ($content as $c) array_push($contents, $c[$value]);
            return $contents;
        }, $reducedSortingRules);

        $sortArgs[] = &$content;
        call_user_func_array('array_multisort', $sortArgs);

        return end($sortArgs);
    }