Controller notification

public function saveNotif()
    {
        $token = $this->input->post('token') ? $this->input->post("token") : null;
        if ($token) {
            $data['notification_title'] = isset($_POST['notification_title']) && filter_var($_POST['notification_title']) == true ? $this->input->post('notification_title') : null;
            $data['notification_content'] = preg_replace("/\r|\n/", "", str_replace(" ", ' ', $_POST['notification_content']));
            $data['create_by'] = $this->session->userdata('username');
            $data['notification_send_time'] = isset($_POST['notification_send_time']) && filter_var($_POST['notification_send_time']) == true ? $this->input->post('notification_send_time') : null;
            $data['notification_all'] = isset($_POST['notification_all']) && filter_var($_POST['notification_all']) == true ? $this->input->post('notification_all') : null;
            $data['module'] = isset($_POST['module']) && filter_var($_POST['module']) == true ? $this->input->post('module') : null;
            $data['id'] = isset($_POST['id']) && filter_var($_POST['id']) == true ? $this->input->post('id') : null;

            $user = explode(',', $this->input->post('recipient'));
            $player = [];
            foreach ($user as $us) {
                $player_id = getJsonManagement('getUser?type=1&search=' . $us);
                if ($player_id) {
                    foreach ($player_id->data as $play) {
                        $player[] = $play->player_id;
                    }
                }
            }

            $data['player_id'] = $player;
            $data['recipient'] = $user;

            $result = postJsonManagement('sendNotif?type=1', $data);
            if (empty($result)) {
                $return['status'] = 'fail';
                $return['note'] = 'Failed to push notification';
            } else {
                if ($result->meta->code == 200) {
                    if (empty($result->data)) {
                        $return['status'] = 'fail';
                        $return['note'] = 'Failed to push notification';
                    } else {
                        $return['status'] = 'success';
                        $return['note'] = $result->data->result->id;
                    }
                } else {
                    $return['status'] = 'fail';
                    $return['note'] = 'Something went wrong';
                }
            }
        } else {
            $return['status'] = 'fail';
            $return['note'] = 'Token is not provided';
        }

        $response['payload']     = CryptoJsAes::Encrypt($return, CRYPTOCODE_AES);
        echo json_encode($response);
    }