CI框架分页类代码

model层
 public function get_content($start,$num){
      
      $sql   = "SELECT * FROM content limit  $start,$num";//$start=>每一页第一条数据所对应的索引;$num=>对应的每一页固定显示的条数
      
      $query = $this->db->query($sql);
      
      return $query->result();
      
      }

controllers层
 public function index()
  {      
      $num = 2;
    $page = $this->uri->segment(3);
    if(empty($page)){
        $start = 0;
     }else{
        $start = $page;
      }
    $data['results'] = $this->voice_model->get_content($start, $num);//根据$start(每一页索引的开始值)和$num(每一页要显示的数目)去数据库取
    $total = $this->db->count_all('content');//计算数据库中的表news的数据总条数
    $config['base_url'] = base_url().'index.php/content_control/index';//配置url
    $config['total_rows'] = $total;//总条数
    $config['per_page'] = $num;  //第一页显示的数目
    $this->pagination->initialize($config); //调用ci自带的initialize函数
    $this->load->view('content.html',$data);//将数组$data的内容传递给视图页knowledge.php
     
  }

views层
  <?php echo $this->pagination->create_links();?>