Question

我尝试从数据库表中检索数据并在DataTable中显示，但我收到的错误

DataTables警告：table id = example - 无效的JSON响应。有关此错误的详细信息，请参阅http://datatables.net/tn/1

您能否在这段代码中看到我的错误？

PHP

$displayBoxList = $this->category_m->getCategoryDisplayboxList(null, $type, $page);
$boxList = array();

foreach($displayBoxList as $key => $val)
{
    $status = ($val['isActive'] == 1) ? 'Active' : 'De-active';

    // $boxList[] = array($val['ID'],$val['heading'],$val['displayOrder'],$status);

    $boxList[$key]['ID'] = $val['ID'];
    $boxList[$key]['heading'] = $val['heading'];
    $boxList[$key]['displayOrder'] = $val['displayOrder'];
    $boxList[$key]['status'] = ($val['isActive'] == 1) ? 'Active' : 'De-active';
}

$json = json_encode($boxList);
echo $json;

AJAX

<script> 
$(document).ready(function(){
   var table = $('#example').DataTable({  

        "processing": true,
        "serverSide": true,
        "ajax": '<?=site_url()?>category/getDatatableData/<?=$activetab?>',
        "createdRow": function(row, data, dataIndex){
         $(row).attr('id', 'row-' + dataIndex);
        }

   });

   table.rowReordering();   
});
</script>

HTML

<table id="example" class="display" cellspacing="0" width="100%">
   <thead>
      <tr>
         <th>ID</th>
         <th>heading</th>
         <th>displayOrder</th>
         <th>status</th>
      </tr>
   </thead>
   <tfoot>
      <tr>
          <th>ID</th>
         <th>heading</th>
         <th>displayOrder</th>
         <th>status</th>
      </tr>
   </tfoot>
</table>

Answer 1

它显示invalid JSON response错误，因为您只将数据部分返回到datatable ajax。 Php文件应以下列格式返回数据：

$jsonData = array(
      "draw" => intval($_REQUEST['draw']),
      "recordsTotal" => 10,            // you have to get this thorugh count(*) query 
      "recordsFiltered" => 8,          // recordsFiltered will get count of records when search input is filled,
       "data" => $boxList             // This is your data in array
);

echo json_encode($jsonData);

当数据以echo格式显示时，您将不会遇到invalid Json response错误。 jQuery数据表接受json数组中draw，recordsTotal，recordsFiltered，data的json响应。

DataTable rowReordering问题PHP

1 个答案: