PHP implements simple and practical paging class code, simple and practical paging

The example in this article describes the implementation of simple and practical paging class in PHP. Share it with everyone for your reference, the details are as follows:

<&#63;php
  class Page {
     private $total;   //總記錄
     private $pagesize;  //每頁顯示多少條
     private $limit;     //limit
     private $page;      //當(dāng)前頁碼
     private $pagenum;   //總頁碼
     private $url;      //地址
     private $bothnum;   //兩邊保持數(shù)字分頁的量
   //構(gòu)造方法初始化
   public function __construct($_total, $_pagesize) {
     $this->total = $_total &#63; $_total : 1;
     $this->pagesize = $_pagesize;
     $this->pagenum = ceil($this->total / $this->pagesize);
     $this->page = $this->setPage();
     $this->limit = "LIMIT ".($this->page-1)*$this->pagesize.",$this->pagesize";
     $this->url = $this->setUrl();
     $this->bothnum = 2;
   }
   //攔截器
   private function __get($_key) {
     return $this->$_key;
   }
   //獲取當(dāng)前頁碼
   private function setPage() {
     if (!empty($_GET['page'])) {
        if ($_GET['page'] > 0) {
          if ($_GET['page'] > $this->pagenum) {
             return $this->pagenum;
          } else {
             return $_GET['page'];
          }
        } else {
          return 1;
        }
     } else {
        return 1;
     }
   }
   //獲取地址
   private function setUrl() {
     $_url = $_SERVER["REQUEST_URI"];
     $_par = parse_url($_url);
     if (isset($_par['query'])) {
        parse_str($_par['query'],$_query);
        unset($_query['page']);
        $_url = $_par['path'].'&#63;'.http_build_query($_query);
     }
     return $_url;
   }   //數(shù)字目錄
   private function pageList() {
     for ($i=$this->bothnum;$i>=1;$i--) {
      $_page = $this->page-$i;
      if ($_page < 1) continue;
        $_pagelist .= ' <a href="'.$this->url.'&page='.$_page.'">'.$_page.'</a> ';
     }
     $_pagelist .= ' <span class="me">'.$this->page.'</span> ';
     for ($i=1;$i<=$this->bothnum;$i++) {
      $_page = $this->page+$i;
        if ($_page > $this->pagenum) break;
        $_pagelist .= ' <a href="'.$this->url.'&page='.$_page.'">'.$_page.'</a> ';
     }
     return $_pagelist;
   }
   //首頁
   private function first() {
     if ($this->page > $this->bothnum+1) {
        return ' <a href="'.$this->url.'">1</a> ...';
     }
   }
   //上一頁
   private function prev() {
     if ($this->page == 1) {
        return '<span class="disabled">上一頁</span>';
     }
     return ' <a href="'.$this->url.'&page='.($this->page-1).'">上一頁</a> ';
   }
   //下一頁
   private function next() {
     if ($this->page == $this->pagenum) {
        return '<span class="disabled">下一頁</span>';
     }
     return ' <a href="'.$this->url.'&page='.($this->page+1).'">下一頁</a> ';
   }
   //尾頁
   private function last() {
     if ($this->pagenum - $this->page > $this->bothnum) {
        return ' ...<a href="'.$this->url.'&page='.$this->pagenum.'">'.$this->pagenum.'</a> ';
     }
   }
   //分頁信息
   public function showpage() {
     $_page .= $this->first();
     $_page .= $this->pageList();
     $_page .= $this->last();
     $_page .= $this->prev();
     $_page .= $this->next();
     return $_page;
   }
 }
&#63;>

The pagination style is as shown below:

Instructions for use:

<&#63;php
  $_page = new Page($_total,$_pagesize);
  //其中 $_total 是數(shù)據(jù)集的總條數(shù),$_pagesize 是每頁顯示的數(shù)量.
&#63;>

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I hope this article will be helpful to everyone in PHP programming.

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