Echarts ajax动态加载json数据

后台php写的，给前台准备好json格式数据

 public function actionGetOffline(){
      $userid = Yii::$app->user->identity->user_id;
      $connection = Yii::$app->db;
      $command = $connection->createCommand("SELECT proc_phase_id from tb_pro where user_id like '%$userid%';");
      $data = $command->queryAll();
        // var_dump($data);
        // die();
      $count = array(0,0,0,0,0,0,0);
    foreach ($data as $value) {
      foreach ($value as $value1) {
      switch ($value1){
        case 0:
            $count[0]=$count[0]+1;
            break;
        case 1:
            $count[1]=$count[1]+1;
            break;
        case 3:
            $count[2]=$count[2]+1;
            break;
        case 6:
            $count[3]=$count[3]+1;
            break;
        case 10:
            $count[4]=$count[4]+1;
            break;
        case 12:
            $count[5]=$count[5]+1;
            break;
        case 16:
            $count[6]=$count[6]+1;
            break;
        }
      }
    }
      $res = array('countData'=>$count);
      // var_dump($res);
      // die();
      return json_encode($res);
    } public function ac