浅谈js控制li标签排序问题 js调用php函数的方法

<span style="font-size:14px;"><ul class="list-group">    <? if ($categorys): ?>           <? foreach ($categorys as $category):?>     <li class="list-group-item" data-id="<? echo $category->id ?>">       <? echo $category->name?>         <a href="<? echo site_url('group/category/delete?id=' . $category->id) ?>" onclick="<?echo lang('confirm')?>">             <span class="glyphicon glyphicon-remove"></span></a>         </li>       <? endforeach;?>            <? else: ?>   <div class="alert alert-danger">暂时没有设置</div>    <? endif; ?> </ul></span> 

<span style="font-size:14px;">   <script>       require(["jquery","jqueryui"],function($) {         var d = window.top.dialog({           content: '配置已更新'         });         $(function() {           $( ".list-group").sortable({             stop: function( event, ui ) {               data = '';               $('li.list-group-item').each(function (){                 data += ',' + $(this).attr('data-id');               });               $.post('/group/category/listorder',{data:data});               d.show();               setTimeout(function () {                 d.close();               }, 1000);             }           }).disableSelection();         });       });     </script></span> 

<span style="font-size:14px;">public function listorder() {     $data = explode(',', $this->input->post('data'));     $i = 1;     foreach ($data as $id) {       if (!$id)         continue;       $this->category_model->save($id, array(         'listorder' => $i,       ));       $i++;     }   }    public function delete() {     $id = $this->input->get('id');     $this->category_model->delete($id);     messagebox(lang('success'), 'referer');   }</span>