jgGird - php json example with userdata

php:

header("Content-type: application/json; charset=utf-8");

$response = new stdClass();
$response->page = $page;
$response->total = $total_pages;
$response->records = $count;

$l_row=0;
$l_totalamt=0;

    while ($row = sqlsrv_fetch_array($stmt)){        
        $response->rows[$l_row]['id']=$l_rowcount+1; //set id starting from 1 instead of 0, and it's up to your choice.
        $response->rows[$l_row]['cell']=array(
            $row['inv_id'],
            $row['descp'],
            $row['amt']
        );       
        $l_totalamt+=$row['amt'];
        $l_row++;
    }
    sqlsrv_free_stmt( $stmt);

$response->userdata['amt']=$l_totalamt;

echo json_encode($response);