db->where('id_wali_santri', $id); $exist = $this->db->get('fcm_tokens')->row(); if ($exist) { $this->db->where('id_wali_santri', $id); $this->db->update('fcm_tokens', ['token' => $token]); } else { $this->db->insert('fcm_tokens', [ 'id_wali_santri' => $id, 'token' => $token ]); } echo json_encode(['status' => true, 'message' => 'Token berhasil disimpan']); } }