; Site description
site="CMS Demo"
; SQLite DSN
;db="sqlite:db/cms.db" <-- original line
db="mysql:host=localhost;port=3306;dbname=b" ;<-- new line.. stuck here.
$f3->set('DB', new DB\SQL('sqlite:/absolute/path/to/your/database.sqlite'));
$db=new DB\SQL(
'mysql:host=localhost;port=3306;dbname=mysqldb',
'admin',
'p455w0rD'
);