Codeigniter: Severity notice Message Array to String conversion [duplicate]

I am new to this and failed to understand why this is happening. I am getting result from database they are:

ArrayArray ( [0] => stdClass Object ( [id] => 1 [box] => draggable1 [xorder] => 1 [descp] => Y ) [1] => stdClass Object ( [id] => 2 [box] => draggable2 [xorder] => 2 [descp] => Z ) [2] => stdClass Object ( [id] => 3 [box] => draggable3 [xorder] => 3 [descp] => X ) ) 

I am trying to print single value such as printing only id value 1 or box value draggable1 from list of array. But problem is when i apply

echo $result1['data'];

gives error:

Severity: Notice
Message Array to String conversion 

similarly while further trying by doing:

echo $result1['data']['id']; //id is field name

gives me error:

undefined index : id

and lastly when i got tired did this:

print_r($result1['data'][0]);

and printed the result

stdClass Object ( [id] => 1 [box] => draggable1 [xorder] => 1 [descp] => Y ) 

but when i do so:

print_r($result1['data'][0]['id']);

gives error:

Fatal error: Cannot use object of type stdClass as array

i follow this post which is related to me but i dont know why i am unable to do so Codeigniter : displaying query result in controller

Here is my function:

public function index()
    {
        $id=$this->input->post('name');
        $result1['data']=$this->drag_model->getcoordinates();
        $result2['data']=$this->drag_model->getva($id);

        echo $result1['data']['id'];
        print_r($result1['data'][0]['id']);
    //  array('id'=>);
        //  $this->load->view('drag/drag_view');
        $this->load->view('drag/dragswap',$result1);

    //  $this->load->view('LoginN/login_view');

    }