分页类

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2014 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: 麦当苗儿 <zuojiazi@vip.qq.com> <http://www.zjzit.cn>
// +----------------------------------------------------------------------
namespace Suppliers\Model;
 
class JsonPage{
    public $firstRow; // 起始行数
    public $listRows; // 列表每页显示行数
    public $parameter; // 分页跳转时要带的参数
    public $totalRows; // 总行数
    public $totalPages; // 分页总页面数
    public $rollPage   = 5;// 分页栏每页显示的页数
    public $lastSuffix = true; // 最后一页是否显示总页数
 
    private $page       = 'page'; //分页参数名
    private $nowPage = 1;
 
    // 分页显示定制
    private $config  = array(
        'header' => '%TOTAL_ROW%',
        'prev'   => '<<',
        'next'   => '>>',
        'first'  => '1...',
        'last'   => '...%TOTAL_PAGE%',
        'theme'  => '%FIRST% %UP_PAGE% %LINK_PAGE% %DOWN_PAGE% %END%',
    );
 
    /**
     * 架构函数
     * @param array $totalRows  总的记录数
     * @param array $listRows  每页显示记录数
     * @param array $parameter  分页跳转的参数
     */
    public function __construct($totalRows, $listRows=20, $parameter = array()) {
        /* 基础设置 */
        $this->totalRows  = $totalRows; //设置总记录数
        $this->listRows   = $listRows;  //设置每页显示行数
        $pa=I($this->page);
        $this->nowPage    = empty($pa)?1:intval($pa);
        $this->nowPage    = $this->nowPage>0 ? $this->nowPage : 1;
        $this->firstRow   = $this->listRows * ($this->nowPage - 1);
    }
 
    /**
     * 组装分页链接
     * @return string
     */
    public function show() {
        if(0 == $this->totalRows) return '';
 
        /* 计算分页信息 */
        $this->totalPages = ceil($this->totalRows / $this->listRows); //总页数
        if(!empty($this->totalPages) && $this->nowPage > $this->totalPages) {
            $this->nowPage = $this->totalPages;
        }
 
        /* 计算分页零时变量 */
        $now_cool_page      = $this->rollPage/2;
        $now_cool_page_ceil = ceil($now_cool_page);
        $this->lastSuffix = $this->totalPages;
 
        //上一页
        $data=array();
        $data['Prev']  = $this->nowPage - 1;
        if($data['Prev']<=0){
            $data['Prev']=1;
        }
         
        //当前页
        $data['Current']=$this->nowPage;
         
        //总行数
        $data['TotalRows']=$this->totalRows;
         
        //总页数
        $data['TotalPages']=$this->totalPages;
 
        //下一页
        $data['Next']  = $this->nowPage + 1;
 
        //第一页
        $the_first = '';
        if($this->totalPages > $this->rollPage && ($this->nowPage - $now_cool_page) >= 1){
            $data['First']=1;
        }
 
        //最后一页
        $the_end = '';
        if($this->totalPages > $this->rollPage && ($this->nowPage + $now_cool_page) < $this->totalPages){
            $data['Last']=$this->totalPages;
        }
 
        //数字连接
        if($this->totalPages<$this->rollPage){
            $this->rollPage=$this->totalPages;
        }
        $link_page = "";
        for($i = 1; $i <= $this->rollPage; $i++){
            if(($this->nowPage - $now_cool_page) <= 0 ){
                    $page = $i;
            }elseif(($this->nowPage + $now_cool_page - 1) >= $this->totalPages){
                    $page = $this->totalPages - $this->rollPage + $i;
            }else{
                    $page = $this->nowPage - $now_cool_page_ceil + $i;
            }
            $data['PageSection'][]=$page;
        }
 
        //替换分页内容
        return $data;
    }
}
 
 
//调用
       $Smartcg_dh=M('smartcg_dh');
        $count = $Smartcg_dh->field('id')->where($wheres)->count();
         
        $Page = new \Suppliers\Model\JsonPage($count,10);// 实例化分页类 传入总记录数和每页显示的记录数(25)
        $show = $Page->show();// 分页显示输出
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