contoh ambil jumlah

//contoh pertama
public function jumlahUser(){
        return $this->db
                ->select('count(distinct(idUser)) as user')
                ->group_by('idUser')
                ->get('tableNya')->row()->user;
    }

//contoh kedua
public function jumlahUser(){
        return $this->db
                ->select('count(idUser) as user')
                ->group_by('idUser')
                ->get('tableNya')->row()->user;
    }


//view nya saya gunakan ini:
$totalUser=$this->modelnya->jumlahUSer();

echo $totalUser;