public static function extractVarType($comments = '')
    {
        $type = 'string';
        preg_match('/@var\ (.*) (.*)\n/i', $comments, $varType);
        if (count($varType)) {
            $aux = trim($varType[1]);
            $type = str_replace(' ', '', strlen($aux) > 0 ? $varType[1] : $varType[2]);
        }

        return $type;
    }