PHP实现的简单分页类及用法示例_php技巧

page; * * 获得总页数 * $page->pageCount; * * 获得总记录数 * $page->rowCount; * * 获得本页记录数 * $page->listSize; * * 获得记录集 * $page->list; * 记录集是一个2维数组,例:list[0]['id']访问第一条记录的id字段值. * * 获得页码列表 * $page->getPageList(); */class Page{  //基础数据  var $sql;  var $page;  var $pageSize;  var $pageStr;  //统计数据  var $pageCount; //页数  var $rowCount; //记录数  //结果数据  var $list = array(); //结果行数组  var $listSize ;  //构造函数  function Page($conn,$sql_in,$page_in,$pageSize_in,$pageStr_in)  {    $this->sql = $sql_in;    $this->page = intval($page_in);    $this->pageSize = $pageSize_in;    $this->pageStr = $pageStr_in;    //页码为空或小于1的处理    if(!$this->page||$this->pagepage = 1;    }    //查询总记录数    $rowCountSql = pre<span>！本文来源gaodai#ma#com搞*!代#%^码网5</span><pre>搞gaodaima代码

g_replace(“/([\w\W]*?select)([\w\W]*?)(from[\w\W]*?)/i”,”$1 count(0) $3″,$this->sql); if(!$conn) $rs = mysql_query($rowCountSql) or die(“bnc.page: error on getting rowCount.”); else $rs = mysql_query($rowCountSql,$conn) or die(“bnc.page: error on getting rowCount.”); $rowCountRow = mysql_fetch_row($rs); $this->rowCount=$rowCountRow[0]; //计算总页数 if($this->rowCount%$this->pageSize==0) $this->pageCount = intval($this->rowCount/$this->pageSize); else $this->pageCount = intval($this->rowCount/$this->pageSize)+1; //SQL偏移量 $offset = ($this->page-1)*$this->pageSize; if(!$conn) $rs = mysql_query($this->sql.” limit $offset,”.$this->pageSize) or die(“bnc.page: error on listing.”); else $rs = mysql_query($this->sql.” limit $offset,”.$this->pageSize,$conn) or die(“bnc.page: error on listing.”); while($row=mysql_fetch_array($rs)) { $this->list[]=$row; } $this->listSize = count($this->list); } /* * getPageList方法生成一个较简单的页码列表 * 如果需要定制页码列表,可以修改这里的代码,或者使用总页数/总记录数等信息进行计算生成. */ function getPageList() { $firstPage; $previousPage; $pageList; $nextPage; $lastPage; $currentPage; //如果页码>1则显示首页连接 if($this->page>1) { $firstPage = “pageStr.”1\”>首页”; } //如果页码>1则显示上一页连接 if($this->page>1) { $previousPage = “pageStr.($this->page-1).”\”>上一页”; } //如果没到尾页则显示下一页连接 if($this->pagepageCount) { $nextPage = “pageStr.($this->page+1).”\”>下一页”; } //如果没到尾页则显示尾页连接 if($this->pagepageCount) { $lastPage = “pageStr.$this->pageCount.”\”>尾页”; } //所有页码列表 for($counter=1;$counterpageCount;$counter++) { if($this->page == $counter) { $currentPage = ““.$counter.”“; } else { $currentPage = ” “.”pageStr.$counter.”\”>”.$counter.””.” “; } $pageList .= $currentPage; } return $firstPage.” “.$previousPage.” “.$pageList.” “.$nextPage.” “.$lastPage.” “; }}?>

list;foreach($rows as $row){  echo $row['UserName']."<br>";}echo $page->getPageList(); //输出分页列表?>