<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Mymodel extends CI_Model
{
    public function myFunction()
    {
        $data = [
            'element1' => 'Test',
            'element2' => '123'
        ];
        
        return $data;
    }
}<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Mycontroller extends CI_Controller
{
    public function index()
    {
        $this->load->model('mymodel');
        
        $data = $this->mymodel->myFunction();
        
        $this->load->view('my_view', [
            'data' => $data,
        ]);
    }
}