php一个不错的分页

1.分页源码

 <?php
 class PageView{
     /**页码**/
     public $pageNo = 1;
     /**页大小**/
     public $pageSize = 20;
     /**共多少页**/
     public $pageCount = 0;
     /**总记录数**/
     public $totalNum = 0;
     /**偏移量,当前页起始行**/
     public $offSet = 0;
     /**每页数据**/
     public $pageData = array();

     /**是否有上一页**/
     public $hasPrePage = true;
     /**是否有下一页**/
     public $hasNextPage = true;

     public $pageNoList = array();

     public $jsFunction ='jsFunction';
     /**
      *
      * @param unknown_type $count 总行数
      * @param unknown_type $size 分页大小
      * @param unknown_type $string
      */
     public function __construct($count=0, $size=20,$pageNo=1,$pageData =array(),$jsFunction='jsFunction'){

         $this->totalNum = $count;//总记录数
         $this->pageSize = $size;//每页大小
         $this->pageNo = $pageNo;
         //计算总页数
         $this->pageCount = ceil($this->totalNum/$this->pageSize);
         $this->pageCount = ($this->pageCount<=0)?1:$this->pageCount;
         //检查pageNo
         $this->pageNo = $this->pageNo == 0 ? 1 : $this->pageNo;
         $this->pageNo = $this->pageNo > $this->pageCount? $this->pageCount : $this->pageNo;

         //计算偏移
         $this->offset = ( $this->pageNo - 1 ) * $this->pageSize;
         //计算是否有上一页下一页
         $this->hasPrePage = $this->pageNo == 1 ?false:true; 

         $this->hasNextPage = $this->pageNo >= $this->pageCount ?false:true;

         $this->pageData = $pageData;
         $this->jsFunction = $jsFunction;

     }
     /**
      * 分页算法
      * @return
      */
     private function generatePageList(){
         $pageList = array();
         if($this->pageCount <= 9){
             for($i=0;$i<$this->pageCount;$i++){
                 array_push($pageList,$i+1);
             }
         }else{
             if($this->pageNo <= 4){
                 for($i=0;$i<5;$i++){
                     array_push($pageList,$i+1);
                 }
                 array_push($pageList,-1);
                 array_push($pageList,$this->pageCount);

             }else if($this->pageNo > $this->pageCount - 4){
                 array_push($pageList,1);

                 array_push($pageList,-1);
                 for($i=5;$i>0;$i--){
                     array_push($pageList,$this->pageCount - $i+1);
                 }
             }else if($this->pageNo > 4 && $this->pageNo <= $this->pageCount - 4){
                 array_push($pageList,1);
                 array_push($pageList,-1);

                 array_push($pageList,$this->pageNo -2);
                 array_push($pageList,$this->pageNo -1);
                 array_push($pageList,$this->pageNo);
                 array_push($pageList,$this->pageNo + 1);
                 array_push($pageList,$this->pageNo + 2);

                 array_push($pageList,-1);
                 array_push($pageList,$this->pageCount);

             }
         }
         return $pageList;
     }

     /***
      * 创建分页控件
     * @param
     * @return String
     */
     public function echoPageAsDiv(){
         $pageList = $this->generatePageList();

         $pageString ="<div class='pagination'><div class='page-bottom'>";

         if(!empty($pageList)){
             if($this->pageCount >1){
                 if($this->hasPrePage){
                     $pageString = $pageString ."<a class='page-next' href=\"javascript:" .$this->jsFunction . "(" . ($this->pageNo-1) . ")\">上一页</a>";
                 }
                 foreach ($pageList as $k=>$p){
                     if($this->pageNo == $p){
                         $pageString = $pageString ."<span class='page-cur'>" . $this->pageNo . "</span>";
                         continue;
                     }
                     if($p == -1){
                         $pageString = $pageString ."<span class='page-break'>...</span>";
                         continue;
                     }
                     $pageString = $pageString ."<a href=\"javascript:" .$this->jsFunction . "(" . $p . ")\">" . $p . "</a>";
                 }

                 if($this->hasNextPage){
                     $pageString = $pageString ."<a class='page-next' href=\"javascript:" .$this->jsFunction . "(" . ($this->pageNo+1) . ")\">下一页</a>";
                 }

             }
         }
         $pageString = $pageString .("</div></div>");
         return $pageString;
     }
 }

 ?>

2.php调用

 　　　$pageNo = $_GET['pageNo'];
         if(empty($pageNo)){
             $pageNo = 1;
         }
         //分页数据
         $pageData = News::getNewsPage($pageNo,$pageSize);
        //取得总行数
         $count = News::getNewsCount();
         //创建分页器
         $p = new PageView($count['0']['TOTAL'],$pageSize,$pageNo,$pageData);
 　　　　 //生成页码
         $pageViewString = $p->echoPageAsDiv();

3.效果图：