Simple paging class implemented in PHP and usage examples_php skills

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->page<1) { $this->page = 1; } //查询总记录数 $rowcountsql = preg_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($this->page<$this->pagecount) { $nextpage = "pagestr.($this->page+1)."\">下一页"; } //如果没到尾页则显示尾页连接 if($this->page<$this->pagecount) { $lastpage = "pagestr.$this->pagecount."\">尾页"; } //所有页码列表 for($counter=1;$counter<=$this->pagecount;$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']."
"; } echo $page->getPageList(); //输出分页列表 ?>