Accessind data in an array and view relate columns

Question

Hello, I read some topic, in particular this, without solution for my work.

So, I've create a PHP Function (NAME: server_side_array) with this code:

$table = 'xijhd_cf_product_data-2';

// Table's primary key
$primaryKey = 'cf_id';


$columns = array(
    array( 'db' => 'cf_id','dt' => 'arr_cf_id' ),
    array( 'db' => 'p_description','dt' => 'arr_p_description' ),
    array( 'db' => 'p_lotto', 'dt' => 'arr_p_lotto' ),
    array( 'db' => 'g_tag',   'dt' => 'arr_g_tag' ),
    array( 'db' => 'created','dt' =>'arr_created',
        'formatter' => function( $d, $row ) {
            return date( 'd-m-Y', strtotime($d));
        }
    )
);


// SQL server connection information
$sql_details = array(
    'user' => 'root',
    'pass' => '*********',
    'db'   => 'generaphoto',
    'host' => 'localhost'
);
 
 
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * If you just want to use the basic configuration for DataTables with PHP
 * server-side, there is no need to edit below this line.
 */
 
require( 'vendor/DataTables/server-side/scripts/ssp.class.php' );
 
 /*
echo json_encode(
    SSP::simple( $_GET, $sql_details, $table, $primaryKey, $columns )
);
*/
$jdata1 = SSP::simple( $_GET, $sql_details, $table, $primaryKey, $columns );

$jdata = json_encode($jdata1);

$this->set("data_joined", $jdata);

echo $jdata;

The output is

{"draw":0,"recordsTotal":386,"recordsFiltered":386,"data":[{[mark]"arr_cf_id":"233","arr_p_description":"2020-01-01_1021","arr_p_lotto":"YZJ30EM","arr_g_tag":"sub1","arr_created":"03-02-2020"[/mark]},{"arr_cf_id":"232","arr_p_description":"2020-01-01_1021","arr_p_lotto":"YZJ30EM","arr_g_tag":"sub1","arr_created":"03-02-2020"},{"arr_cf_id":"231","arr_p_description":"2020-01-01_1021","arr_p_lotto":"YZJ30EM","arr_g_tag":"sub1","arr_created":"03-02-2020"},{"arr_cf_id":"230","arr_p_description":"2020-01-01_1021","arr_p_lotto":"YZJ30EM","arr_g_tag":"sub1","arr_created":"01-01-2020"},......

Then in TABLE (Name articles_list) VIEW I add this DATA PROVIDER: {var.jsonde:data_joined}

The INDEX EVENT is this:

{fn:server_side_array}
{view:articles_list}

My questions is:

Is correct till now my work?
what code I need to add in COLUMN LIST of TABLE VIEW to view arr_cf_id / arr_p_description / arr_p_lotto fields?

Thank you for your reply