一个简易的php分页类（附带样式） 

  1 <?php
  2 // +----------------------------------------------------------------------
  3 // | Copyright (c) 2006~2017 http://baiyf.com All rights reserved.
  4 // +----------------------------------------------------------------------
  5 // | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
  6 // +----------------------------------------------------------------------
  7 // | Author: NickBai <1902822973@qq.com>
  8 // +----------------------------------------------------------------------
  9 class Page
 10 {
 11     private $total = 0;  //总数
 12     private $pageSize = 0;  //每页显示的条数
 13     private $page = 'page';  //接收的变量名
 14     private $pageNumber = 0;  //分的页数
 15     private $window = 5;  //默认显示的页码个数
 16     private $currentPage = 0;  //当前页
 17     //架构函数
 18     //初始化分页信息
 19     public function __construct( $total, $pageSize )
 20     {
 21         $this->total = $total;
 22         $this->pageSize = $pageSize;
 23         $this->pageNumber = ceil( $total / $pageSize );
 24         $this->currentPage = isset( $_GET[$this->page] ) ? $_GET[$this->page] : 1;  //get获取当前页
 25     }
 26     //渲染分页html
 27     public function show()
 28     {
 29         $slider = null; 
 30         $side = 3;
 31         $window = $side + 2;
 32         if ($this->pageNumber < $window) {
 33             $slider = $this->getUrlRange(1, $this->pageNumber);
 34         } elseif ($this->currentPage < $window) {
 35             $slider = $this->getUrlRange(1, $window);
 36         } elseif ($this->currentPage > ($this->pageNumber - $side)) {
 37             $slider = $this->getUrlRange($this->currentPage - 2, $this->pageNumber);
 38         } else {
 39             $slider = $this->getUrlRange($this->currentPage - 2, $this->currentPage + 2);
 40         }
 41         $html = '<ul class="pagination">';
 42         $html .= $this->getPreButton();
 43         if (is_array($slider)) {
 44             $html .= $this->getUrlLinks($slider);
 45         }
 46         $html .= $this->getNextButton();
 47         $html .= '</ul>';
 48         return $html;
 49     }
 50     //获取可点击的页码
 51     private function getPageLink( $url, $page )
 52     {
 53         if( $page == $this->currentPage ){
 54             return $this->getActivePage( $page );
 55         }
 56         return '<li><a href="' . htmlentities( $url ) . '">' . $page . '</a></li>';
 57     }
 58     //获取不可点击的页码
 59     private function getDisablePage( $text )
 60     {
 61         return '<li class="disabled"><span>' . $text . '</span></li>';
 62     }
 63     //获取选中的样式
 64     private function getActivePage( $text )
 65     {
 66         return '<li class="active"><span>' . $text . '</span></li>';
 67     }
 68     //创建一组分页链接
 69     private function getUrlRange( $start, $end )
 70     {
 71         $urls = [];
 72         for ($page = $start; $page <= $end; $page++) {
 73             $urls[$page] = $this->buildUrl($page);
 74         }
 75         return $urls;
 76     }
 77     //批量生成页码按钮.
 78     protected function getUrlLinks(array $urls)
 79     {
 80         $html = '';
 81         foreach ($urls as $page => $url) {
 82             $html .= $this->getCommonPage($url, $page);
 83         }
 84         return $html;
 85     }
 86     //组件url参数
 87     private function buildUrl($text)
 88     {
 89         return '?' . $this->page . '='.$text;
 90     }
 91     //获取普通的分页按钮
 92     private function getCommonPage( $url, $text )
 93     {
 94         return $this->getPageLink( $url, $text );
 95     }
 96     //获取上一页按钮
 97     private function getPreButton($text='上一页')
 98     {
 99         if( $this->currentPage <= 1 ){
100             
101             return $this->getDisablePage($text);
102         }
103         $url = $this->buildUrl( $this->currentPage - 1 );
104         return $this->getPageLink( $url, $text);    
105     }
106     //获取下一页按钮
107     private function getNextButton($text='下一页')
108     {
109         if( $this->currentPage == $this->pageNumber ){
110             
111             return $this->getDisablePage($text);
112         }
113         $url = $this->buildUrl( $this->currentPage + 1 );
114         return $this->getPageLink( $url, $text);    
115     }
116 }
117 ?>
118 
119 <!DOCTYPE html>
120 <html>
121 <head>
122     <title>分页码</title>
123     <meta charset="utf-8" />
124 </head>
125 <body>
126 <style>
127     
128 .pagination {
129     height: 40px;
130     margin: 0 auto;
131     width: 470px;
132 }
133 .pagination li {
134     border: 1px solid #d9d9d9;
135     float: left;
136     font-size: 14px;
137     height: 40px;
138     line-height: 40px;
139     margin-left: 5px;
140     padding: 0 18px;
141     list-style:none;
142 }
143 .pagination li a {
144     color: #2f2f2f;
145     text-decoration:none;
146 }
147 .active {
148     background: #2bb7ff none repeat scroll 0 0;
149     color: #fff;
150 }
151 </style>
152 <?php
153     $page = new Page(100, 10);
154     echo $page->show();
155 ?>
156 
157 </body>
158 </html>

 

posted @ 2016-08-23 14:51  NickBai  阅读(369)  评论(0)  编辑  收藏  举报