php 分页类(源码+实例)
发布时间：2016-11-18 编辑：jiaochengji.com
分享一个php分页类，写的不错，提供了二个该分页类的调用实例，供大家学习参考。
1，php分页类代码
<?php
/**
* php分页类
* by www.jbxue.com
*/
//定义错误级别
error_reporting(E_ALL);
//分页类
class pagination{
public $Start; // 开始mysql查询
public $End; // 结束mysql查询
private $Number; //分布数据的数量
public $Pages; // 页数
private $N_p_p; //每页要显示的内容数量
private $Page_number; //当前页数
private $Buttons; //最大显示的按钮数，即每页面中显示出的页数
function __construct($number,$n_p_p=10,$page_number=1,$buttons=5)
{
//page start from 1
$page_number = ($page_number<1) ? 1 : $page_number ;
$this-> Number = $number;
$this-> N_p_p = $n_p_p;
$this-> Pages = ceil ( $this-> Number / $this-> N_p_p ) ;
$this-> Buttons = $buttons ;
$page_number= ($page_number>$this->Pages) ? $this->Pages : $page_number ;
$this-> Page_number = $page_number ;
$this-> Ret() ;
}
public function Show_Pagination($link,$get='page',$div_class_name='pagination')
{
//if pages == 1 , no need to print pagination
if($this->Pages==1)return;
//$link is the addres of current page
//$get is name of get method
//echo pagination's div
echo'<div class="'.$div_class_name.'">';
//echo pre button
if($this->Page_number>1)echo '<a href="'.$link.'&'.$get.'='.($this->Page_number -1 ).'">Per</a> ';
else echo '<a >Per</a> ';
//print button
$this->Buttons=(int)$this->Buttons;
$start_counter = $this->Page_number-floor($this->Buttons/2);//for normal mode
$end_conter = $this->Page_number+floor($this->Buttons/2);//for normal mode
//try to buttons exactly equal to $Buttons
if($start_counter<1) $end_conter=$end_conter+abs($start_counter);
if($end_conter>$this->Pages) $start_counter=$start_counter-($end_conter-$this->Pages);
if(($this->Page_number-floor($this->Buttons/2))<1)$end_conter ++;
for ($i=$start_counter;$i<=$end_conter;$i++)
{
if($i>$this->Pages || $i<1)continue; //no print less than 1 value or grater than totall page
if($i==$this->Page_number)echo ' <a class="cur">'.$i.'</a> '; // change current page' class
else echo ' <a href="'.$link.'&'.$get.'='.$i.'">'.$i.'</a> '; // normal pages
}
//echo next button
if($this->Page_number<$this->Pages)echo '<a href="'.$link.'&'.$get.'='. ($this->Page_number +1 ) .'">Nex</a> ';
else echo '<a >Nex</a> ';
//close div tag
echo'</div>';
}
//give the page number and return start and end of selection
private function Ret()
{
$this->Start=(($this->Page_number-1)*$this->N_p_p);
$this->End= $this->N_p_p ;
}
}
2，分页类的示例一
<html>
<head>
<style type="text/css">
/* style for show*/
.pagination{direction:ltr}
.pagination a{border-radius:3px;background-color:#eee;color:#555;border:1px solid #aaaaaa;padding-top:2px;padding-bottom:2px;
padding-right:5px;padding-left:5px;text-decoration:none;}
.pagination a:hover ,.pagination .cur{border-color:#0C52CE;color:#0C52CE;background-color:#fff;}
</style>
<title>php分页类示例---www.jbxue.com</title>
</head>
<?php
//include class:
require_once"pagination.php";
//get the numbet of current page
//note! you should safe it
if(isset($_GET['page'])){
$page=$_GET['page'];
}
else $page=1;
//connect to db ...
mysql_connect("localhost","root","");//use your host,username and password to connect to the db
mysql_select_db("dbname");//select your database
//run query to get number of all records
$query=mysql_query("select count(id) from table"); //raplace table with your table name
$totall=mysql_result($query,0);
//creat new object
$pagination=new pagination($totall,3 /*number of content per page*/,$page,5 /*number of button to show*/);
//get records of current page
$SecondQuery=mysql_query("select id from table order by id desc limit $pagination->Start , $pagination->End");
//echo your result
while($row=mysql_fetch_assoc($SecondQuery))
{
echo 'id='.$row['id'].'<br>';
}
//show pagination:
$pagination->Show_Pagination("ExampleMysql.php?param1=value1",'page','pagination');
?>
3，分页类的调用示例二
<html>
<head>
<style type="text/css">
/* style for show*/
.pagination{direction:ltr}
.pagination a{border-radius:3px;background-color:#eee;color:#555;border:1px solid #aaaaaa;padding-top:2px;padding-bottom:2px;
|padding-right:5px;padding-left:5px;text-decoration:none;}
.pagination a:hover ,.pagination .cur{border-color:#0C52CE;color:#0C52CE;background-color:#fff;}
</style>
<title>php分页类的调用示例-www.jbxue.com</title>
</head>
<?php
//include分页类文件
require_once "pagination.php";
//param of url to specify page_number
$get_param='page';
//get current page from url
$current_page=(isset($_GET[$get_param]) && is_numeric($_GET[$get_param]))?$_GET[$get_param]:1;
//notice: when get param , youe should SAFE it
//get totall available content
// for example you can get number of news from news table in database ( mysql_num_rows or count())
$totall_content=120; // for example
//creat new cat object
$cat=new pagination($totall_content,10 /*number of content per page*/,$current_page,5 /*number of button*/);
//when you want to load content of page: for example in db queris :
// select * from table where conditions order by key limit $cat->Start , $cat->End
//for show :
$cat->Show_Pagination("example.php?",'page','pagination');
?>
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