$conn = new PDO($dsn);
$GetAllData = $conn->prepare("SELECT a.plot_sub_usage, b.code_desc, c.code_desc, COUNT(*) as count
FROM dc_plot a
        inner join t_setup_code b on a.plot_sub_usage = b.code_id
        inner join t_setup_code c on c.code_id = b.code_1
GROUP BY a.plot_sub_usage, b.code_desc, c.code_desc
ORDER BY a.plot_sub_usage");
    $GetAllData->execute();
    $allRecords = [];
    if($GetAllData->rowCount() > 0){
          while($AllData = $GetAllData->fetch(PDO::FETCH_ASSOC)){
             $allRecords[] = ($AllData);

<tbody>
      <?php
      foreach($allRecords as $v){?>
      <tr>
        <td><?php echo $v['b.code_desc'];?></td>
        <td><?php echo $v['c.code_desc'];?></td>
        <td><?php echo $v['count'];?></td>
      </tr>
   <?php }?>
    </tbody>