CI AJAX 模型怎么写

1987760631

public function  getLabelData(){  //生成josn
   $pageNum = I('pageNum');
    $totalItem = M('label')->count();
    $pageSize = 6;
    $totalPage = ceil($totalItem/$pageSize);

    $startItem = ($pageNum-1) * $pageSize;
    $arr['totalItem'] = $totalItem;
    $arr['pageSize'] = $pageSize;
    $arr['totalPage'] = $totalPage;

    $labels = M('label')->limit($startItem,$pageSize)->select();

    foreach($labels as $lab) {
        $arr['data_content'][] = $lab;
    }

    echo json_encode($arr);
  
}

weiki1998

这是thinkphp 的写法吧