PHP 는 대상 을 대상 으로 봉 인 된 페이지 클래스 예 시 를 기반 으로 합 니 다

<?php
  class Page
  {
    protected $num;//      
    protected $total;//    
    protected $pageCount;//   
    protected $current;//    
    protected $offset;//   
    protected $limit;//    
    /**
     *     
     * @param int $total     
     * @param int $num        
     */
    public function __construct($total,$num=5)
    {
      //1.      
      $this->num = $num;
      //2.    
      $this->total = $total;
      //3.   
      $this->pageCount = ceil($total/$num);
      //4.   
      $this->offset = ($this->current-1)*$num;
      //5.    
      $this->limit = "{$this->offset},{$this->num}";
      //6.      
      $this->current();
    }
    /**
     *       
     */
    public function current(){
      $this->current = isset($_GET['page'])?$_GET['page']:'1';
      //         
      if ($this->current>$this->pageCount){
        $this->current = $this->pageCount;
      }
      //         
      if ($this->current<1){
        $this->current = 1;
      }
    }
    /**
     *           
     * @param string $key       
     * @return float|int|string           
     */
    public function __get($key){
      if ($key == "limit") {
        return $this->limit;
      }
      if ($key == "offset") {
        return $this->offset;
      }
      if ($key == "current") {
        return $this->current;
      }
    }
    /**
     *       
     * @return string         
     */
    public function show(){
      //      
      $_GET['page'] = isset($_GET['page'])?$_GET['page']:'1';
      // $_GET       
      $first = $end = $prev = $next = $_GET;
      // var_dump($prev);
      //   
      //       
      if ($this->current-1<1){
        $prev['page'] = 1;
      }else{
        $prev['page'] = $this->current-1;
      }
      //   
      //       
      if ($this->current+1>$this->pageCount) {
        $next["page"] = $this->pageCount;
      }else{
        $next['page'] = $this->current+1;
      }
      /*
        
      $first['page'] = 1; 
      //  
      $end['page'] = $this->pageCount;
      */
      //    
      $url = "http://".$_SERVER["SERVER_NAME"].$_SERVER["SCRIPT_NAME"];
      //    url     ?    
      //http://xxx/xxx/Page.class.php?page= 
      $prev = http_build_query($prev);
      $next = http_build_query($next);
      // $first = http_build_query($first);
      // $end = http_build_query($end);
      //      
      $prevpath = $url."?".$prev;
      $nextpath = $url."?".$next;
      // $firstpath = $url."?".$first;
      // $endpath = $url."?".$end;
      $str = "  {$this->total}      {$this->pageCount}  ";
      $str .= "<a href='{$url}?page=1'>  </a> ";
      $str .= "<a href='{$prevpath}'>   </a> ";
      $str .= "<a href='{$nextpath}'>   </a> ";
      $str .= "<a href='{$url}?page={$this->pageCount}'>  </a> ";
      return $str;
    }
  }
  //    
  $a = new Page(10);
  echo $a->show();
?>