php一个不错的分页

1.分页源码

  1 <?php
  2 class PageView{
  3     /**页码**/
  4     public $pageNo = 1;
  5     /**页大小**/
  6     public $pageSize = 20;
  7     /**共多少页**/
  8     public $pageCount = 0;
  9     /**总记录数**/
 10     public $totalNum = 0;
 11     /**偏移量,当前页起始行**/
 12     public $offSet = 0;
 13     /**每页数据**/
 14     public $pageData = array();
 15     
 16     /**是否有上一页**/
 17     public $hasPrePage = true;
 18     /**是否有下一页**/
 19     public $hasNextPage = true;
 20     
 21     public $pageNoList = array();
 22     
 23     public $jsFunction ='jsFunction';
 24     /**
 25      * 
 26      * @param unknown_type $count 总行数
 27      * @param unknown_type $size 分页大小
 28      * @param unknown_type $string
 29      */
 30     public function __construct($count=0, $size=20,$pageNo=1,$pageData =array(),$jsFunction='jsFunction'){
 31 
 32         $this->totalNum = $count;//总记录数
 33         $this->pageSize = $size;//每页大小
 34         $this->pageNo = $pageNo;
 35         //计算总页数
 36         $this->pageCount = ceil($this->totalNum/$this->pageSize);
 37         $this->pageCount = ($this->pageCount<=0)?1:$this->pageCount;
 38         //检查pageNo
 39         $this->pageNo = $this->pageNo == 0 ? 1 : $this->pageNo;
 40         $this->pageNo = $this->pageNo > $this->pageCount? $this->pageCount : $this->pageNo;
 41         
 42         //计算偏移
 43         $this->offset = ( $this->pageNo - 1 ) * $this->pageSize;
 44         //计算是否有上一页下一页
 45         $this->hasPrePage = $this->pageNo == 1 ?false:true; 
 46 
 47         $this->hasNextPage = $this->pageNo >= $this->pageCount ?false:true;
 48         
 49         $this->pageData = $pageData;
 50         $this->jsFunction = $jsFunction;
 51         
 52     }
 53     /**
 54      * 分页算法
 55      * @return
 56      */
 57     private function generatePageList(){
 58         $pageList = array();
 59         if($this->pageCount <= 9){
 60             for($i=0;$i<$this->pageCount;$i++){
 61                 array_push($pageList,$i+1);
 62             }
 63         }else{
 64             if($this->pageNo <= 4){
 65                 for($i=0;$i<5;$i++){
 66                     array_push($pageList,$i+1);
 67                 }
 68                 array_push($pageList,-1);
 69                 array_push($pageList,$this->pageCount);
 70 
 71             }else if($this->pageNo > $this->pageCount - 4){
 72                 array_push($pageList,1);
 73                 
 74                 array_push($pageList,-1);
 75                 for($i=5;$i>0;$i--){
 76                     array_push($pageList,$this->pageCount - $i+1);
 77                 }
 78             }else if($this->pageNo > 4 && $this->pageNo <= $this->pageCount - 4){
 79                 array_push($pageList,1);
 80                 array_push($pageList,-1);
 81                 
 82                 array_push($pageList,$this->pageNo -2);
 83                 array_push($pageList,$this->pageNo -1);
 84                 array_push($pageList,$this->pageNo);
 85                 array_push($pageList,$this->pageNo + 1);
 86                 array_push($pageList,$this->pageNo + 2);
 87                 
 88                 array_push($pageList,-1);
 89                 array_push($pageList,$this->pageCount);
 90                 
 91             }
 92         }
 93         return $pageList;
 94     }
 95 
 96     /***
 97      * 创建分页控件
 98     * @param
 99     * @return String
100     */
101     public function echoPageAsDiv(){
102         $pageList = $this->generatePageList();
103         
104         $pageString ="<div class='pagination'><div class='page-bottom'>";
105     
106         if(!empty($pageList)){
107             if($this->pageCount >1){
108                 if($this->hasPrePage){
109                     $pageString = $pageString ."<a class='page-next' href="javascript:" .$this->jsFunction . "(" . ($this->pageNo-1) . ")">上一页</a>";
110                 }
111                 foreach ($pageList as $k=>$p){
112                     if($this->pageNo == $p){
113                         $pageString = $pageString ."<span class='page-cur'>" . $this->pageNo . "</span>";
114                         continue;
115                     }
116                     if($p == -1){
117                         $pageString = $pageString ."<span class='page-break'>...</span>";
118                         continue;
119                     }
120                     $pageString = $pageString ."<a href="javascript:" .$this->jsFunction . "(" . $p . ")">" . $p . "</a>";
121                 }
122                 
123                 if($this->hasNextPage){
124                     $pageString = $pageString ."<a class='page-next' href="javascript:" .$this->jsFunction . "(" . ($this->pageNo+1) . ")">下一页</a>";
125                 }
126                 
127             }
128         }
129         $pageString = $pageString .("</div></div>");
130         return $pageString;
131     }
132 }
133 
134 ?>

2.php调用

 1 　　　$pageNo = $_GET['pageNo'];
 2         if(empty($pageNo)){
 3             $pageNo = 1;
 4         }
 5         //分页数据
 6         $pageData = News::getNewsPage($pageNo,$pageSize);
 7        //取得总行数
 8         $count = News::getNewsCount();
 9         //创建分页器
10         $p = new PageView($count['0']['TOTAL'],$pageSize,$pageNo,$pageData);
11 　　　　 //生成页码
12         $pageViewString = $p->echoPageAsDiv();

3.效果图：