How to get ids from session in codeIgniter

I want to know is there any way to get all qids without using foreach loop.

PHP Code:

$data=array( 
             'position' =>$row->pos,
             'qid' =>$row->id
        );
                    
$items=$this->session->userdata('mcqs');                  

$items[]=$data;

$mcqs=$this->session->set_userdata('mcqs', $items); 


PHP Code:

Array
(
   [0] => Array
       (
           [position] => 5
           [qid] => 3
       )
   [1] => Array
       (
           [position] => 6
           [qid] => 4
       )

   [2] => Array
       (
           [position] => 2
           [qid] => 5
       )

   [3] => Array
       (
           [position] => 4
           [qid] => 1
       )
) 


 please help  me .

PHP Code:

$qids = array_column($array,'qid'); 


For more information:
http://php.net/manual/en/function.array-column.php

@Wouter60

It is exactly what i am looking for.

Thanks