之前我写过一篇文章，介绍了CI如何分页，请猛击~ 那么考虑到一个项目要分页的地方比较多，所以后来我们写了一个单独的分页类，这样一个项目的效率会大大提升。 1、首先，我们在  application / libraries /下面创建page.php（扩展分页类）文件，代码如下：

<?php

class Page
{ 
	protected $url;
	protected $total;
	protected $size;
	protected $segment;
	protected $CI;

	function __construct($value){

        $this->url=$value['url'];
        $this->size=$value['size'];
        $this->total=$value['total'];
        //$this->segment=$value['uri'];

        $this->CI=& get_instance();

        $this->CI->load->library('pagination');

	}

	function fy(){

        return $this->page();

	}

	protected function page(){

        $config['base_url']=base_url($this->url);
        $config['total_rows']=$this->total;
        $config['per_page']=$this->size;
        //$config['uri_segment']=$this->segment;
        //GET分页 传参
        $config['page_query_string'] = TRUE;

        $config['num_links']=3;
        $config['first_link']='首页';
        $config['last_link']='末页';
        $config['prev_link']='上一页';
        $config['next_link']='下一页';
        $config['cur_tag_open'] = ' <a class="current">'; // 当前页开始样式  
        $config['cur_tag_close'] = '</a>'; // 当前页结束样式  

//      $this->CI->load->library('pagination', $config);

        $this->CI->pagination->initialize($config);

        return $this->CI->pagination->create_links();

	}

}

?>

2、那分页类写好了，如何使用呢？在控制器里面 controllers / feadmin.php文件（此处要结合你自己的项目，feadmin.php是我的控制器文件名）。下面是我们文章列表的示例代码：

function postsList() {
        $data['posts'] = $this->fe_model->page('posts', 'feadmin/postsList?',  @$_GET['per_page'], 2, 'id desc','category','posts.category = category.cid ');
        //print_r($data['posts']);
        $data['category'] = $this->fe_model->selectCate();
        //$data['category1'] = $this->fe_model->selectFormWhere('category',);
        //print_r($data['category1']);
        $data['title_for_layout'] = '文章列表';

        $this->load->view('admin/postsView', $data);
    }

此处我使用的是CI** GET分页**方法，具体需要看你的项目是否需要，此处可参考手册开启GET翻页功能。 fe_model是我项目的模型文件，那么要实现翻页，还需要在模型中写下面的方法：

//分页
	function page($form, $url, $offset, $size, $order, $join, $joinArray){

        $fy['url'] = $url;
        $fy['total'] = $data['total'] = $this->fy_n($form);
        $fy['size'] = $data['size'] = $info['size'] = $size;
        //$fy['uri'] = $offset;
        $this->load->library('page', $fy);
        $data['fy'] = $this->page->fy();
        //print_r($data['fy']);
        //$info['start'] = $data['start'] = $this->uri->segment($offset, 0);
        $info['start'] = $data['start'] = $offset;
        $info['order'] = $order;
        $data['admin'] = $this->fy_info($form, $info, $join, $joinArray);

        return $data;

	}

	function fy_n($form){

        return $this->db->get($form)->num_rows();

	}

	function fy_info($form,$value,$join,$joinArray){

        $this->db->order_by($value['order']);
        $this->db->limit($value['size'],$value['start']);
        if($join != ""){
            $this->db->join($join,$joinArray);
        }
        return $this->db->get($form)->result();

	}

	function pageWhere($form, $url, $offset, $size, $where, $order, $join, $joinArray){

            $fy['url'] = $url;
            $fy['total'] = $data['total'] = $this->p_numWhere($form, $where);
            $fy['size'] = $data['size'] =$info['size'] = $size;
            //$fy['uri'] = $offset;
            $this->load->library('page', $fy);
            $data['fy'] = $this->page->fy();
            //print_r($data['fy']);
            //$info['start'] = $data['start'] = $this->uri->segment(offset, 0);
            $info['start'] = $data['start'] = $data['start'] = $offset;
            $info['order'] = $order;
            $data['admin'] = $this->fy_infoWhere($form, $where, $info, $join, $joinArray);

            return $data;

	}
	function p_numWhere($form, $where){

        if(isset($where['where'])){
            $this->db->where($where['where']);
        }
        if(isset($where['like'])){
            $this->db->like($where['like'])	;
        }

        return $this->db->get($form)->num_rows();

	}

	function fy_infoWhere($form, $where, $value, $join, $joinArray){

        if(isset($where['where'])){
            $this->db->where($where['where']);
        }
        if(isset($where['like'])){
            $this->db->like($where['like']);
        }

        $this->db->order_by($value['order']);
        $this->db->limit($value['size'],$value['start']);
        if($join != ""){
            $this->db->join($join,$joinArray);
        }

        return $this->db->get($form)->result();

	}

3、下面的视图文件的代码：

<tbody>
	<?php foreach ($posts['admin'] as $post):
        ?>
	<tr>
        <td>
          <input type="checkbox" name="checkbox[]" value="<?php echo $post->id; ?>" />
        </td>
        <td><a href="feadmin/posts/<?php echo $post->id;?>" title="修改文章"><?php echo $post->title;?></a></td>
        <td><a href="feadmin/postsSearch/?category=<?php echo $post->category;?>" title="查询“<?php echo $post->name;?>”分类"><?php echo $post->name;?></a></td>
        <!-- <td><?php //echo date('Y-m-d', strtotime($post->addtime));?></td> -->
        <td><?php echo $post->addtime;?></td>
        <td>
            <a href="feadmin/posts/<?php echo $post->id;?>" title="修改"><img src="resources/images/icons/pencil.png" alt="修改" /></a> 
            <?php if($post->type != 1){?>
                <a href="feadmin/postsDelete/<?php echo $post->id;?>" title="删除" onclick="return(confirm('确定删除?'))"><img src="resources/images/icons/cross.png" alt="删除" /></a> 
                <!-- <a href="#" title="Edit Meta"><img src="resources/images/icons/hammer_screwdriver.png" alt="Edit Meta" /></a> -->
            <?php }?>
        </td>
	</tr>
  <?php 
  endforeach;?>
</tbody>

翻页的按钮代码如下：

<div class="pagination">
	<?php echo $this->pagination->create_links(); ?>
</div>

此处值得注意的是   完整项目代码请参考这里~