private void dailyCheckin(final ProgressDialog pDialog) {
    //first getting the values
    final String reg_user_id=String.valueOf(SharedPref.getInstance(getApplicationContext()).getUserID());
    //Call our volley library
    StringRequest stringRequest = new StringRequest(Request.Method.POST, Constant.DAILYCHECKIN,
            new Response.Listener<String>() {
                @Override
                public void onResponse(String response) {
                    try {
                        JSONObject obj = new JSONObject(response);
                        if (obj.getBoolean("error")) {
                            pDialog.hide();
                            Toast.makeText(getApplicationContext(),
                                    getString(R.string.newdailyreward)
                                            +" "+obj.getString("hours")+" "+
                                            getString(R.string.hours)
                                            +" "+obj.getString("minutes")+" "+
                                            getString(R.string.minutes), Toast.LENGTH_SHORT).show();
                        } else {
                            pDialog.hide();
                            Toast.makeText(getApplicationContext(),
                                    getString(R.string.rewardsuccess)
                                            +" "+obj.getString("message")+" "+
                                            getString(R.string.rewardpoints)
                                    , Toast.LENGTH_SHORT).show();

                        }
                    } catch (JSONException e) {
                        pDialog.hide();
                        e.printStackTrace();
                    }
                }
            },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    pDialog.hide();
                    error.printStackTrace();
                }
            }) {
        @Override
        protected Map<String, String> getParams() throws AuthFailureError {
            Map<String, String> params = new HashMap<>();
            params.put("user_id", reg_user_id);

            return params;
        }
    };
    VolleySingleton.getInstance(FreePointsActivity.this).addToRequestQueue(stringRequest);
}//dailyCheckin

elseif (isset($_GET['dailycheckin'])) {
    $id=intval($_POST['user_id']);


        $daily="Daily Checkin";





        $sql='select * from rewardpoints_points where user_id='.$id.' AND app_name="'.$daily.'"  ORDER BY date_operation DESC;';
        $res=$cnx->query($sql);
        $data=$res->fetchAll(PDO::FETCH_OBJ)[0];


if (empty($data)) {

                $s='select daily_chekin_points from rewardpoints_settings';
                $r=$cnx->query($s);
                $d=$r->fetchAll(PDO::FETCH_OBJ)[0];
                $points=$d->daily_chekin_points;
                $sql="insert into rewardpoints_points values(NULL,'".$id."',0,'".$daily."','".$points."',NOW(),0)";
                if($cnx->exec($sql)){
                    $response['error'] = false;
                    $response['message'] = $points;
                }


    }
    else{

        $newreward= strtotime( $data->date_operation ) + 24 * 3600;
        if ($newreward<=time()) {
            //echo "you can get";
                $s='select daily_chekin_points from rewardpoints_settings';
                $r=$cnx->query($s);
                $d=$r->fetchAll(PDO::FETCH_OBJ)[0];
                $points=$d->daily_chekin_points;
                $sql="insert into rewardpoints_points values(NULL,'".$id."',0,'".$daily."','".$points."',NOW(),0)";
                if($cnx->exec($sql)){
                    $response['error'] = false;
                    $response['message'] = $points;
                }

        }//$newreward<=time()
        else{
            //echo "you can not";
        $response['error'] = true;
        $time=time()-$newreward;
        $m = floor($time / 60)*-1;
        $hours = floor($m / 60);
        $minutes = ($m % 60);
        $response['hours'] = $hours;
        $response['minutes'] = $minutes;
        }

    }
    }//dailycheckin