<?php
class page{
private $dbadd; //数据库地址
private $dbuser; //数据库用户名
private $dbpwd; //数据库密码
private $dbname; //数据库名
private $tablename; //数据表名
private $num; //每页显示的行数
private $total; //表中数据总数
private $totalpage; //总页数
private $page; //当前页数
private $limit; //查询数
private $arrs; //查询后返回的数据
private $col; //总列数
private $nostart; //当前页开始的记录数
private $noend; //当前页结束的记录数
private $head; //首页
private $end; //尾页
private $last; //上一页
private $nexts; //下一页
function __construct($dbadd, $dbuser, $dbpwd, $dbname, $tablename, $num){
$this->dbadd=$dbadd;
$this->dbuser=$dbuser;
$this->dbpwd=$dbpwd;
$this->dbname=$dbname;
$this->tablename=$tablename;
$this->num=$num;
$this->total=$this->gettotal(); //得到总条数
$this->totalpage=ceil($this->total/$this->num); //获取总页数
$this->page=$this->getpage(); //得到当前页数
$this->limit=$this->setlimit(); //得到查询的数据
$this->arrs=$this->getarrs(); //得到查询的结果
$this->col=$this->getcol(); //获取总列数
$this->nostart=($this->page-1)*$num+1;
$this->noend=$this->page==$this->totalpage ? $this->total : $this->page*$num;
$this->head=$this->page==1 ? "首页" : "<a href='?page=1'>首页</a>";
$this->end=$this->page==$this->totalpage ? "尾页" : "<a href='?page={$this->totalpage}'>尾页</a>";
$this->last=$this->page==1 ? "上一页" : "<a href='?page=".($this->page-1)."'>上一页</a>";
$this->nexts=$this->page==$this->totalpage ? "下一页" : "<a href='?page=".($this->page+1)."'>下一页</a>";
}
private function getcol(){
$linkss=mysql_connect($this->dbadd, $this->dbuser, $this->dbpwd);
mysql_select_db($this->dbname, $linkss);
$result=mysql_query("select * from {$this->tablename}", $linkss);
$col=mysql_num_fields($result);
mysql_close($linkss);
return $col;
}
private function getarrs(){ //根据条件再次查询并返回结果
$sql="select * from {$this->tablename} limit {$this->limit}, {$this->num}";
$links=mysql_connect($this->dbadd, $this->dbuser, $this->dbpwd);
mysql_select_db($this->dbname, $links);
$result=mysql_query($sql, $links);
while($arr=mysql_fetch_assoc($result)){
$arrs[]=$arr;
}
return $arrs;
mysql_close($links);
}
private function setlimit(){
return ($this->page-1)*$this->num;
}
private function getpage(){
$page=isset($_GET["page"]) ? $_GET["page"] : 1;
$page=$page>$this->totalpage ? $this->totalpage : $page;
$page=$page<1 ? 1 : $page;
return $page;
}
private function gettotal(){ //得到表中所有记录的总数
$link=mysql_connect($this->dbadd, $this->dbuser, $this->dbpwd);
mysql_select_db($this->dbname, $link);
$result=mysql_query("select * from {$this->tablename}", $link);
$total=mysql_num_rows($result);
mysql_close($link);
return $total;
}
function __get($args){
switch($args){
case "arrs": //根据条件查询出的结果,是二维数组
return $this->arrs;
break;
case "totalpage": //总页数
return $this->totalpage;
break;
case "col": //总列数
return $this->col;
break;
case "page": //当前页
return $this->page;
break;
case "nostart": //当前页显示的记录的起始条数
return $this->nostart;
break;
case "noend": //当前页显示的记录的结束条数
return $this->noend;
break;
case "head": //首页按钮
return $this->head;
break;
case "end": //尾页按钮
return $this->end;
break;
case "last": //上一页按钮
return $this->last;
break;
case "nexts": //下一页按钮
return $this->nexts;
break;
}
}
}
?>
这个类没有公有的方法,像上一页、下一页、首页、末页、当前页数、总页数、当前显示条数、总条数这些值,分别赋给了成员属性,调用时只需要输出相应的成员属性即可,非常方便。
在实例化传值的时候,只需要传数据库地址、帐号、密码、库名、表名、每页显示的数目即可!
这个类很好用 故在这里唐山长城网络给大家给大家推荐一下
http://