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PHP Pagination Class_PHP Tutorial

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2016-07-13 10:59:05769browse

// 禁止直接访问该页面
if (basename($HTTP_SERVER_VARS['PHP_SELF']) == "pager.class.php") {
   header("HTTP/1.0 404 Not Found");
}

class Pager
{
   /**Total number of messages*/
   var $infoCount;
   /**Total pages*/
   var $pageCount;
   /**Number of items displayed per page*/
   var $items;
   /**Current page number*/
   var $pageNo;
   /**The starting position of the query*/
   var $startPos;
   var $nextPageNo;
   var $prevPageNo;
 
   function Pager($infoCount, $items, $pageNo)
   {
     $this->infoCount = $infoCount;
     $this->items   = $items;
     $this->pageNo  = $pageNo;
     $this->pageCount = $this->GetPageCount();
     $this->AdjustPageNo();
     $this->startPos = $this->GetStartPos();
   }
   function AdjustPageNo()
   {
     if($this->pageNo == '' || $this->pageNo < 1)
       $this->pageNo = 1;
     if ($this->pageNo > $this->pageCount)
       $this->pageNo = $this->pageCount;
   }
   /**
*Next page
​*/
   function GoToNextPage()
   {
     $nextPageNo = $this->pageNo 1;
     if ($nextPageNo > $this->pageCount)
     {
       $this->nextPageNo = $this->pageCount;
       return false;
     }
     $this->nextPageNo = $nextPageNo;
     return true;
   }
   /**
* Previous page
​*/
   function GotoPrevPage()
   {
     $prevPageNo = $this->pageNo - 1;
     if ($prevPageNo < 1)
     {
       $this->prevPageNo = 1;
       return false;
     }
     $this->prevPageNo = $prevPageNo;
     return true;
   }
   function GetPageCount()
   {
     return ceil($this->infoCount / $this->items);
   }
   function GetStartPos()
   {
     return ($this->pageNo - 1) * $this->items;
   }
}
?>

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/631959.htmlTechArticle?php // 禁止直接访问该页面 if (basename($HTTP_SERVER_VARS['PHP_SELF']) == pager.class.php) { header(HTTP/1.0 404 Not Found); } class Pager { /**Total number of messages*/ var $infoC...
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