- 冒险村物语
- 英雄无敌3塔防
- 驾考家园手游
php实战第八天
2015-05-27
今天是学习做后台页面布局，用得是bootcss。那么效果展示一下。
布局的代码
[html] %20<!DOCTYPE%20html>
<html%20lang="en">
<head>
%20<meta%20http-equiv="Content-Type"%20content="text/html;%20charset=utf-8"%20/>
%20<title>无标题文档</title>
%20<link%20rel="stylesheet"%20type="text/css"%20href="css/bootstrap.min.css"></head>
<body>
%20<div%20class="container-fluid">
%20<div%20class="row-fluid">
%20<div%20class="span4">
%20<h3>瀑布流留言板管理系统</h3>
%20</div>
%20</div>
%20<div%20class="row-fluid">
%20<div%20id="menu"%20class="span2">
%20<ul%20class="nav%20nav-list">
%20<li%20class="nav-header">留言管理</li>
%20<li%20class="active">
%20<a%20id="start"%20href="javascript:void(0);">所有留言</a>
%20</li>
%20<li%20class="nav-header">网站管理</li>
%20<li%20class="">
%20<a%20href="javascript:void(0);">基本设置</a>
%20</li>
%20</ul>
%20</div>
%20<div%20id="main"%20class="span10">
%20<div%20id="mainData"></div>
%20</div>
%20</div>
%20</div>
</body>
%20<script%20src="js/jquery-2.0.1.min.js"></script>
%20<script%20type="text/javascript"%20src="js/bootstrap.min.js"></script>
%20<script%20type="text/javascript"%20src="js/admin.js"></script>
</html>
<!DOCTYPE%20html>
<html%20lang="en">
<head>
%20<meta%20http-equiv="Content-Type"%20content="text/html;%20charset=utf-8"%20/>
%20<title>无标题文档</title>
%20<link%20rel="stylesheet"%20type="text/css"%20href="css/bootstrap.min.css"></head>
<body>
%20<div%20class="container-fluid">
%20<div%20class="row-fluid">
%20<div%20class="span4">
%20<h3>瀑布流留言板管理系统</h3>
%20</div>
%20</div>
%20<div%20class="row-fluid">
%20<div%20id="menu"%20class="span2">
%20<ul%20class="nav%20nav-list">
%20<li%20class="nav-header">留言管理</li>
%20<li%20class="active">
%20<a%20id="start"%20href="javascript:void(0);">所有留言</a>
%20</li>
%20<li%20class="nav-header">网站管理</li>
%20<li%20class="">
%20<a%20href="javascript:void(0);">基本设置</a>
%20</li>
%20</ul>
%20</div>
%20<div%20id="main"%20class="span10">
%20<div%20id="mainData"></div>
%20</div>
%20</div>
%20</div>
</body>
%20<script%20src="js/jquery-2.0.1.min.js"></script>
%20<script%20type="text/javascript"%20src="js/bootstrap.min.js"></script>
%20<script%20type="text/javascript"%20src="js/admin.js"></script>
</html>
从中学到javascript函数
str.substr(0,20)意思是从0个字符开始取20个字符
Math.random()取随机数
switch语句
这后台是ajax的噢。写了好久的分页呢。好吧，直接上代码。
[javascript] %20//%20JavaScript%20Document
$('body').off('.data-api');
$(document).ready(function(e)%20{
%20$("#menu%20a").click(function()%20{
%20switch%20($(this).text())%20{
%20case%20'所有留言':
%20admin_content(1);
%20break;
%20case%20'基本设置':
%20$("#main%20#mainData").load('admin_config.html?r='+Math.random());
%20break;
%20default:
%20break;
%20}
%20});
%20$("#start").click();
});
/**
*留言管理
*/
function%20admin_content(page)%20{
%20$.ajax({
%20url:%20'http://localhost/l/admin.php?m=admin&a=content&page='%20+%20page%20+%20'&rand='%20+%20Math.random(),
%20type:%20'get',
%20dataType:%20'json',
%20data:%20{},
%20complete:%20function(xhr,%20textStatus)%20{
%20//called%20when%20complete
%20},
%20success:%20function(json,%20textStatus,%20xhr)%20{
%20if%20(json['state']%20==%20'ok')%20{
%20var%20page_start%20=%20json['start'];//分页开始
%20var%20page_end%20=%20json['end'];//分页结束
%20var%20page_page%20=%20json['page'];//分页当前页面
%20var%20data%20=%20json['data'];//分页数据
/**
*%20生成%20表格内容
*/
%20var%20table_html%20=%20'<table%20class="table%20table-hover"><tr><th>操作</th><th>用户名</th><th>留言内容</th><th>发表时间</th></tr>';
%20for%20(i%20=%200;%20i%20<%20data.length;%20i++)%20{
%20var%20trClass%20=%20(i%20%%202%20==%200)%20?%20'class="info"'%20:%20'';
%20var%20tr_html%20=%20'<tr%20'%20+%20trClass%20+%20'><td%20width=100><a%20href="javascript:admin_content_del('+data[i].id+');">删除</a></td><td%20width=100>'%20+%20data[i].userName%20+%20'</td><td%20width=400%20><div%20style="max-width:400px;max-height:150px;overflow-y:auto;">'%20+%20data[i].content%20+%20'</div></td><td%20>'%20+%20getLocalTime(data[i].time)%20+%20'</td></tr>';
%20table_html%20=%20table_html%20+%20tr_html;
%20}
%20table_html%20=%20table_html%20+%20'</table>';
/**
*生成分页
*/
%20var%20page_html%20=%20'<div%20id="mainPage"><div%20class="pagination"><ul>';
%20if%20(page_end%20!==%200)%20{
%20if%20(page_page%20==%201)%20{
%20page_html%20=%20page_html%20+%20'<li%20class="disabled"><a%20href="JavaScript:void(0);">«</a></li>';
%20}%20else%20{
%20page_html%20=%20page_html%20+%20'<li><a%20href="JavaScript:void(0);">«</a></li>';
%20}
%20}
%20for%20(var%20i%20=%20page_start;%20i%20<=%20page_end;%20i++)%20{
%20if%20(page_page%20==%20i)%20{
%20page_html%20=%20page_html%20+%20'<li%20class="active"><a%20href="JavaScript:void(0);">'%20+%20i%20+%20'</a></li>';
%20}%20else%20{
%20page_html%20=%20page_html%20+%20'<li><a%20href="JavaScript:void(0);">'%20+%20i%20+%20'</a></li>';
%20}
%20}
%20if%20(page_end%20!==%200)%20{
%20if%20(page_page%20==%20page_end)%20{
%20page_html%20=%20page_html%20+%20'<li%20class="disabled"><a%20href="JavaScript:void(0);">»</a></li>';
%20}%20else%20{
%20page_html%20=%20page_html%20+%20'<li><a%20href="JavaScript:void(0);">»</a></li>';
%20}
%20}
%20page_html%20=%20page_html%20+%20'</ul></div></div>';
%20var%20mainData%20=%20$("#main%20#mainData");
%20mainData.html(table_html);
%20mainData.append(page_html);
%20admin_content_page(page_page,page_end);%20//挂接分页点击事件
%20}
%20//alert(json.data);
%20},
%20error:%20function(xhr,%20textStatus,%20errorThrown)%20{
%20//called%20when%20there%20is%20an%20error
%20}
%20});
}
/**
*%20挂机分页事件
*%20参数%20page_page%20当前分页
*%20参数%20page_end %20分页数量
*/
function%20admin_content_page(page_page,page_end)%20{
%20$("#mainPage%20a").click(function()%20{
%20var%20charStr%20=%20$(this).text();
%20var%20num%20=%20charStr;
%20if%20(charStr%20==%20"»")%20{
%20num%20=%20parseInt(page_page)%20+%201;
%20if%20(page_end%20<%20num)%20{
%20return;
%20}
%20}%20else%20if%20(charStr%20==%20"«")%20{
%20num%20=%20parseInt(page_page)%20-%201;
%20if%20(num%20<=%200)%20{
%20return;
%20}
%20}
%20admin_content(num);
%20});
}
function%20admin_content_del%20(id)%20{
%20alert(id);
}
function%20getLocalTime(nS)%20{
%20return%20new%20Date(parseInt(nS)%20*%201000).toLocaleString().replace(/:/d{1,2}$/,%20'%20');
}
//%20JavaScript%20Document
$('body').off('.data-api');
$(document).ready(function(e)%20{
$("#menu%20a").click(function()%20{
switch%20($(this).text())%20{
case%20'所有留言':
admin_content(1);
break;
case%20'基本设置':
$("#main%20#mainData").load('admin_config.html?r='+Math.random());
break;
default:
break;
}
});
$("#start").click();
});
/**
*留言管理
*/
function%20admin_content(page)%20{
$.ajax({
url:%20'http://localhost/l/admin.php?m=admin&a=content&page='%20+%20page%20+%20'&rand='%20+%20Math.random(),
type:%20'get',
dataType:%20'json',
data:%20{},
complete:%20function(xhr,%20textStatus)%20{
//called%20when%20complete
},
success:%20function(json,%20textStatus,%20xhr)%20{
if%20(json['state']%20==%20'ok')%20{
var%20page_start%20=%20json['start'];//分页开始
var%20page_end%20=%20json['end'];//分页结束
var%20page_page%20=%20json['page'];//分页当前页面
var%20data%20=%20json['data'];//分页数据
/**
*%20生成%20表格内容
*/
var%20table_html%20=%20'<table%20class="table%20table-hover"><tr><th>操作</th><th>用户名</th><th>留言内容</th><th>发表时间</th></tr>';
for%20(i%20=%200;%20i%20<%20data.length;%20i++)%20{
var%20trClass%20=%20(i%20%%202%20==%200)%20?%20'class="info"'%20:%20'';
var%20tr_html%20=%20'<tr%20'%20+%20trClass%20+%20'><td%20width=100><a%20href="javascript:admin_content_del('+data[i].id+');">删除</a></td><td%20width=100>'%20+%20data[i].userName%20+%20'</td><td%20width=400%20><div%20style="max-width:400px;max-height:150px;overflow-y:auto;">'%20+%20data[i].content%20+%20'</div></td><td%20>'%20+%20getLocalTime(data[i].time)%20+%20'</td></tr>';
table_html%20=%20table_html%20+%20tr_html;
}
table_html%20=%20table_html%20+%20'</table>';
/**
*生成分页
*/
var%20page_html%20=%20'<div%20id="mainPage"><div%20class="pagination"><ul>';
if%20(page_end%20!==%200)%20{
if%20(page_page%20==%201)%20{
page_html%20=%20page_html%20+%20'<li%20class="disabled"><a%20href="JavaScript:void(0);">«</a></li>';
}%20else%20{
page_html%20=%20page_html%20+%20'<li><a%20href="JavaScript:void(0);">«</a></li>';
}
}
for%20(var%20i%20=%20page_start;%20i%20<=%20page_end;%20i++)%20{
if%20(page_page%20==%20i)%20{
page_html%20=%20page_html%20+%20'<li%20class="active"><a%20href="JavaScript:void(0);">'%20+%20i%20+%20'</a></li>';
}%20else%20{
page_html%20=%20page_html%20+%20'<li><a%20href="JavaScript:void(0);">'%20+%20i%20+%20'</a></li>';
}
}
if%20(page_end%20!==%200)%20{
if%20(page_page%20==%20page_end)%20{
page_html%20=%20page_html%20+%20'<li%20class="disabled"><a%20href="JavaScript:void(0);">»</a></li>';
}%20else%20{
page_html%20=%20page_html%20+%20'<li><a%20href="JavaScript:void(0);">»</a></li>';
}
}
page_html%20=%20page_html%20+%20'</ul></div></div>';
var%20mainData%20=%20$("#main%20#mainData");
mainData.html(table_html);
mainData.append(page_html);
admin_content_page(page_page,page_end);%20//挂接分页点击事件
}
//alert(json.data);
},
error:%20function(xhr,%20textStatus,%20errorThrown)%20{
//called%20when%20there%20is%20an%20error
}
});
}
/**
*%20挂机分页事件
*%20参数%20page_page%20当前分页
*%20参数%20page_end %20分页数量
*/
function%20admin_content_page(page_page,page_end)%20{
$("#mainPage%20a").click(function()%20{
var%20charStr%20=%20$(this).text();
var%20num%20=%20charStr;
if%20(charStr%20==%20"»")%20{
num%20=%20parseInt(page_page)%20+%201;
if%20(page_end%20<%20num)%20{
return;
}
}%20else%20if%20(charStr%20==%20"«")%20{
num%20=%20parseInt(page_page)%20-%201;
if%20(num%20<=%200)%20{
return;
}
}
admin_content(num);
});
}
function%20admin_content_del%20(id)%20{
alert(id);
}
function%20getLocalTime(nS)%20{
return%20new%20Date(parseInt(nS)%20*%201000).toLocaleString().replace(/:/d{1,2}$/,%20'%20');
}这是分页请求的服务端代码
[php] %20public%20function%20content()
{
%20//引入分页类
%20include%20"page.class.php";
%20//得到data表的数据数量
%20$rows%20=%20$this->db->count('select%20*%20from%20data');
%20//创建分页对象
%20$page%20=%20new%20Page($rows,%205,%20"");
%20$list=$this->db
%20->order('id%20DESC')
%20->table('data')
%20->limit($page->getLimit())
%20->select();
%20/*
%20echo%20"<pre>";
%20var_dump($list);
%20echo%20"</pre>";
%20*/
%20$json['state']='ok';
%20$json['start']=$page->getStart();
%20$json['end']=$page->getEnd();
%20$json['page']=$page->getPage();
%20$json['data']=$list;
%20echo%20json_encode($json);
%20//exit();
}
public%20function%20content()
{
//引入分页类
include%20"page.class.php";
//得到data表的数据数量
$rows%20=%20$this->db->count('select%20*%20from%20data');
//创建分页对象
$page%20=%20new%20Page($rows,%205,%20"");
$list=$this->db
%20->order('id%20DESC')
%20->table('data')
%20 %20->limit($page->getLimit())
%20 %20->select();
/*
echo%20"<pre>";
var_dump($list);
echo%20"</pre>";
*/
$json['state']='ok';
$json['start']=$page->getStart();
$json['end']=$page->getEnd();
$json['page']=$page->getPage();
$json['data']=$list;
echo%20json_encode($json);
//exit();
}
做这分页的时候由于是ajax，html代码生成都在客户端。经过我观察这分页类存在问题。实际上许多代码都没必要存在。有时间我去把他干掉。
附上代码%20page.class.php
[php] %20<?php
%20/**
%20file:%20page.class.php
%20完美分页类%20Page
%20@微凉%20QQ496928838
%20*/
%20class%20Page%20{
%20private%20$total; %20//数据表中总记录数
%20private%20$listRows; %20//每页显示行数
%20private%20$limit; %20//SQL语句使用limit从句,限制获取记录个数
%20private%20$uri; %20//自动获取url的请求地址
%20private%20$pageNum; %20//总页数
%20private%20$page; %20//当前页
%20private%20$config%20=%20array(
%20'head'%20=>%20"条记录",
%20'prev'%20=>%20"上一页",
%20'next'%20=>%20"下一页",
%20'first'=>%20"首页",
%20'last'%20=>%20"末页"
%20); %20//在分页信息中显示内容，可以自己通过set()方法设置
%20private%20$listNum%20=%2010; %20//默认分页列表显示的个数
%20/**
%20构造方法，可以设置分页类的属性
%20@param %20int%20$total %20计算分页的总记录数
%20@param %20int%20$listRows %20可选的，设置每页需要显示的记录数，默认为25条
%20@param %20mixed %20$query %20可选的，为向目标页面传递参数,可以是数组，也可以是查询字符串格式
%20@param %20bool %20$ord %20可选的，默认值为true,%20页面从第一页开始显示，false则为最后一页
%20*/
%20public%20function%20__construct($total,%20$listRows=25,%20$query="",%20$ord=true){
%20$this->total%20=%20$total;
%20$this->listRows%20=%20$listRows;
%20$this->uri%20=%20$this->getUri($query);
%20$this->pageNum%20=%20ceil($this->total%20/%20$this->listRows);
%20/*以下判断用来设置当前面*/
%20if(!empty($_GET["page"]))%20{
%20$page%20=%20$_GET["page"];
%20}else{
%20if($ord)
%20$page%20=%201;
%20else
%20$page%20=%20$this->pageNum;
%20}
%20if($total%20>%200)%20{
%20if(preg_match('//D/',%20$page)%20){
%20$this->page%20=%201;
%20}else{
%20$this->page%20=%20$page;
%20}
%20}else{
%20$this->page%20=%200;
%20}
%20$this->limit%20=%20"LIMIT%20".$this->getLimit();
%20}
%20/**
%20用于设置显示分页的信息，可以进行连贯操作
%20@param %20string %20$param %20是成员属性数组config的下标
%20@param %20string %20$value %20用于设置config下标对应的元素值
%20@return%20object %20返回本对象自己$this，%20用于连惯操作
%20*/
%20function%20set($param,%20$value){
%20if(array_key_exists($param,%20$this->config)){
%20$this->config[$param]%20=%20$value;
%20}
%20return%20$this;
%20}
%20/*%20不是直接去调用，通过该方法，可以使用在对象外部直接获取私有成员属性limit和page的值%20*/
%20function%20__get($args){
%20if($args%20==%20"limit"%20||%20$args%20==%20"page")
%20return%20$this->$args;
%20else
%20return%20null;
%20}
%20/**
%20按指定的格式输出分页
%20@param %20int%200-7的数字分别作为参数，用于自定义输出分页结构和调整结构的顺序，默认输出全部结构
%20@return%20string %20分页信息内容
%20*/
%20function%20fpage(){
%20$arr%20=%20func_get_args();
%20$html[0]%20=%20"%20共<b>%20{$this->total}%20</b>{$this->config["head"]}%20";
%20$html[1]%20=%20"%20本页%20<b>".$this->disnum()."</b>%20条%20";
%20$html[2]%20=%20"%20本页从%20<b>{$this->start()}-{$this->end()}</b>%20条%20";
%20$html[3]%20=%20"%20<b>{$this->page}/{$this->pageNum}</b>页%20";
%20$html[4]%20=%20$this->firstprev();
%20$html[5]%20=%20$this->pageList();
%20$html[6]%20=%20$this->nextlast();
%20$html[7]%20=%20$this->goPage();
%20$fpage%20=%20'<div%20style="font:12px%20/'/5B8B/4F53/',san-serif;">';
%20if(count($arr)%20<%201)
%20$arr%20=%20array(0,%201,2,3,4,5,6,7);
%20for($i%20=%200;%20$i%20<%20count($arr);%20$i++)
%20$fpage%20.=%20$html[$arr[$i]];
%20$fpage%20.=%20'</div>';
%20return%20$fpage;
%20}
%20/*%20格式为%201,5，*/
%20function%20getLimit(){
%20if($this->page%20>%200)
%20return%20($this->page-1)*$this->listRows.",{$this->listRows}";
%20else
%20return%200;
%20}
%20//当前的页面
%20function%20getPage(){
%20return%20$this->page;
%20}
%20//分页的开始
%20function%20getStart(){
%20$num1=$this->page-4;
%20return%20$num1>0?$num1:1;
%20}
%20//分页的结束
%20function%20getEnd(){
%20$num1=$this->pageNum;
%20$num2=$this->page+5;
%20return%20$num1<$num2?$num1:$num2;
%20}
%20/*%20在对象内部使用的私有方法，用于自动获取访问的当前URL%20*/
%20private%20function%20getUri($query){
%20$request_uri%20=%20$_SERVER["REQUEST_URI"];
%20$url%20=%20strstr($request_uri,'?')%20?%20$request_uri%20: %20$request_uri.'?';
%20if(is_array($query))
%20$url%20.=%20http_build_query($query);
%20else%20if($query%20!=%20"")
%20$url%20.=%20"&".trim($query,%20"?&");
%20$arr%20=%20parse_url($url);
%20if(isset($arr["query"])){
%20parse_str($arr["query"],%20$arrs);
%20unset($arrs["page"]);
%20$url%20=%20$arr["path"].'?'.http_build_query($arrs);
%20}
%20if(strstr($url,%20'?'))%20{
%20if(substr($url,%20-1)!='?')
%20$url%20=%20$url.'&';
%20}else{
%20$url%20=%20$url.'?';
%20}
%20return%20$url;
%20}
%20/*%20在对象内部使用的私有方法，用于获取当前页开始的记录数%20*/
%20private%20function%20start(){
%20if($this->total%20==%200)
%20return%200;
%20else
%20return%20($this->page-1)%20*%20$this->listRows+1;
%20}
%20/*%20在对象内部使用的私有方法，用于获取当前页结束的记录数%20*/
%20private%20function%20end(){
%20return%20min($this->page%20*%20$this->listRows,%20$this->total);
%20}
%20/*%20在对象内部使用的私有方法，用于获取上一页和首页的操作信息%20*/
%20private%20function%20firstprev(){
%20if($this->page%20>%201)%20{
%20$str%20=%20"%20<a%20href='{$this->uri}page=1'>{$this->config["first"]}</a>%20";
%20$str%20.=%20"<a%20href='{$this->uri}page=".($this->page-1)."'>{$this->config["prev"]}</a>%20";
%20return%20$str;
%20}
%20}
%20/*%20在对象内部使用的私有方法，用于获取页数列表信息%20*/
%20private%20function%20pageList(){
%20$linkPage%20=%20"%20<b>";
%20$inum%20=%20floor($this->listNum/2);
%20/*当前页前面的列表%20*/
%20for($i%20=%20$inum;%20$i%20>=%201;%20$i--){
%20$page%20=%20$this->page-$i;
%20if($page%20>=%201)
%20$linkPage%20.=%20"<a%20href='{$this->uri}page={$page}'>{$page}</a>%20";
%20}
%20/*当前页的信息%20*/
%20if($this->pageNum%20>%201)
%20$linkPage%20.=%20"<span%20style='padding:1px%202px;background:#BBB;color:white'>{$this->page}</span>%20";
%20/*当前页后面的列表%20*/
%20for($i=1;%20$i%20<=%20$inum;%20$i++){
%20$page%20=%20$this->page+$i;
%20if($page%20<=%20$this->pageNum)
%20$linkPage%20.=%20"<a%20href='{$this->uri}page={$page}'>{$page}</a>%20";
%20else
%20break;
%20}
%20$linkPage%20.=%20'</b>';
%20return%20$linkPage;
%20}
%20/*%20在对象内部使用的私有方法，获取下一页和尾页的操作信息%20*/
%20private%20function%20nextlast(){
%20if($this->page%20!=%20$this->pageNum)%20{
%20$str%20=%20"%20<a%20href='{$this->uri}page=".($this->page+1)."'>{$this->config["next"]}</a>%20";
%20$str%20.=%20"%20<a%20href='{$this->uri}page=".($this->pageNum)."'>{$this->config["last"]}</a>%20";
%20return%20$str;
%20}
%20}
%20/*%20在对象内部使用的私有方法，用于显示和处理表单跳转页面%20*/
%20private%20function%20goPage(){
%20if($this->pageNum%20>%201)%20{
%20return%20'%20<input%20style="width:20px;height:17px%20!important;height:18px;border:1px%20solid%20#CCCCCC;"%20type="text"%20onkeydown="javascript:if(event.keyCode==13){var%20page=(this.value>'.$this->pageNum.')?'.$this->pageNum.':this.value;location=/''.$this->uri.'page=/'+page+/'/'}"%20value="'.$this->page.'"><input%20style="cursor:pointer;width:25px;height:18px;border:1px%20solid%20#CCCCCC;"%20type="button"%20value="GO"%20onclick="javascript:var%20page=(this.previousSibling.value>'.$this->pageNum.')?'.$this->pageNum.':this.previousSibling.value;location=/''.$this->uri.'page=/'+page+/'/'">%20';
%20}
%20}
%20/*%20在对象内部使用的私有方法，用于获取本页显示的记录条数%20*/
%20private%20function%20disnum(){
%20if($this->total%20>%200){
%20return%20$this->end()-$this->start()+1;
%20}else{
%20return%200;
%20}
%20}
%20}
<?php
/**
file:%20page.class.php
完美分页类%20Page
@微凉%20QQ496928838
*/
class%20Page%20{
private%20$total; %20 %20 //数据表中总记录数
private%20$listRows;%20 //每页显示行数
private%20$limit; %20 %20 //SQL语句使用limit从句,限制获取记录个数
private%20$uri; %20 %20 //自动获取url的请求地址
private%20$pageNum;%20 %20 //总页数
private%20$page; //当前页
private%20$config%20=%20array(
'head'%20=>%20"条记录",
'prev'%20=>%20"上一页",
'next'%20=>%20"下一页",
'first'=>%20"首页",
'last'%20=>%20"末页"
);%20 //在分页信息中显示内容，可以自己通过set()方法设置
private%20$listNum%20=%2010;%20 //默认分页列表显示的个数
/**
构造方法，可以设置分页类的属性
@param int $total 计算分页的总记录数
@param int $listRows 可选的，设置每页需要显示的记录数，默认为25条
@param mixed $query 可选的，为向目标页面传递参数,可以是数组，也可以是查询字符串格式
@param%20 bool $ord 可选的，默认值为true,%20页面从第一页开始显示，false则为最后一页
%20*/
public%20function%20__construct($total,%20$listRows=25,%20$query="",%20$ord=true){
$this->total%20=%20$total;
$this->listRows%20=%20$listRows;
$this->uri%20=%20$this->getUri($query);
$this->pageNum%20=%20ceil($this->total%20/%20$this->listRows);
/*以下判断用来设置当前面*/
if(!empty($_GET["page"]))%20{
$page%20=%20$_GET["page"];
}else{
if($ord)
$page%20=%201;
else
$page%20=%20$this->pageNum;
}
if($total%20>%200)%20{
if(preg_match('//D/',%20$page)%20){
$this->page%20=%201;
}else{
$this->page%20=%20$page;
}
}else{
$this->page%20=%200;
}
$this->limit%20=%20"LIMIT%20".$this->getLimit();
}
/**
用于设置显示分页的信息，可以进行连贯操作
@param string $param 是成员属性数组config的下标
@param string $value 用于设置config下标对应的元素值
@return object 返回本对象自己$this，%20用于连惯操作
%20*/
function%20set($param,%20$value){
if(array_key_exists($param,%20$this->config)){
$this->config[$param]%20=%20$value;
}
return%20$this;
}
/*%20不是直接去调用，通过该方法，可以使用在对象外部直接获取私有成员属性limit和page的值%20*/
function%20__get($args){
if($args%20==%20"limit"%20||%20$args%20==%20"page")
return%20$this->$args;
else
return%20null;
}
/**
按指定的格式输出分页
@param int 0-7的数字分别作为参数，用于自定义输出分页结构和调整结构的顺序，默认输出全部结构
@return string 分页信息内容
%20*/
function%20fpage(){
$arr%20=%20func_get_args();
$html[0]%20=%20"%20共<b>%20{$this->total}%20</b>{$this->config["head"]}%20";
$html[1]%20=%20"%20本页%20<b>".$this->disnum()."</b>%20条%20";
$html[2]%20=%20"%20本页从%20<b>{$this->start()}-{$this->end()}</b>%20条%20";
$html[3]%20=%20"%20<b>{$this->page}/{$this->pageNum}</b>页%20";
$html[4]%20=%20$this->firstprev();
$html[5]%20=%20$this->pageList();
$html[6]%20=%20$this->nextlast();
$html[7]%20=%20$this->goPage();
$fpage%20=%20'<div%20style="font:12px%20/'/5B8B/4F53/',san-serif;">';
if(count($arr)%20<%201)
$arr%20=%20array(0,%201,2,3,4,5,6,7);
for($i%20=%200;%20$i%20<%20count($arr);%20$i++)
$fpage%20.=%20$html[$arr[$i]];
$fpage%20.=%20'</div>';
return%20$fpage;
}
/*%20格式为%201,5，*/
function%20getLimit(){
if($this->page%20>%200)
return%20($this->page-1)*$this->listRows.",{$this->listRows}";
else
return%200;
}
//当前的页面
function%20getPage(){
return%20$this->page;
}
//分页的开始
function%20getStart(){
$num1=$this->page-4;
return%20$num1>0?$num1:1;
}
//分页的结束
function%20getEnd(){
$num1=$this->pageNum;
$num2=$this->page+5;
return%20$num1<$num2?$num1:$num2;
}
/*%20在对象内部使用的私有方法，用于自动获取访问的当前URL%20*/
private%20function%20getUri($query){
$request_uri%20=%20$_SERVER["REQUEST_URI"];
$url%20=%20strstr($request_uri,'?')%20?%20$request_uri%20: %20$request_uri.'?';
if(is_array($query))
$url%20.=%20http_build_query($query);
else%20if($query%20!=%20"")
$url%20.=%20"&".trim($query,%20"?&");
$arr%20=%20parse_url($url);
if(isset($arr["query"])){
parse_str($arr["query"],%20$arrs);
unset($arrs["page"]);
$url%20=%20$arr["path"].'?'.http_build_query($arrs);
}
if(strstr($url,%20'?'))%20{
if(substr($url,%20-1)!='?')
$url%20=%20$url.'&';
}else{
$url%20=%20$url.'?';
}
return%20$url;
}
/*%20在对象内部使用的私有方法，用于获取当前页开始的记录数%20*/
private%20function%20start(){
if($this->total%20==%200)
return%200;
else
return%20($this->page-1)%20*%20$this->listRows+1;
}
/*%20在对象内部使用的私有方法，用于获取当前页结束的记录数%20*/
private%20function%20end(){
return%20min($this->page%20*%20$this->listRows,%20$this->total);
}
/*%20在对象内部使用的私有方法，用于获取上一页和首页的操作信息%20*/
private%20function%20firstprev(){
if($this->page%20>%201)%20{
$str%20=%20"%20<a%20href='{$this->uri}page=1'>{$this->config["first"]}</a>%20";
$str%20.=%20"<a%20href='{$this->uri}page=".($this->page-1)."'>{$this->config["prev"]}</a>%20";
return%20$str;
}
}
/*%20在对象内部使用的私有方法，用于获取页数列表信息%20*/
private%20function%20pageList(){
$linkPage%20=%20"%20<b>";
$inum%20=%20floor($this->listNum/2);
/*当前页前面的列表%20*/
for($i%20=%20$inum;%20$i%20>=%201;%20$i--){
$page%20=%20$this->page-$i;
if($page%20>=%201)
$linkPage%20.=%20"<a%20href='{$this->uri}page={$page}'>{$page}</a>%20";
}
/*当前页的信息%20*/
if($this->pageNum%20>%201)
$linkPage%20.=%20"<span%20style='padding:1px%202px;background:#BBB;color:white'>{$this->page}</span>%20";
/*当前页后面的列表%20*/
for($i=1;%20$i%20<=%20$inum;%20$i++){
$page%20=%20$this->page+$i;
if($page%20<=%20$this->pageNum)
$linkPage%20.=%20"<a%20href='{$this->uri}page={$page}'>{$page}</a>%20";
else
break;
}
$linkPage%20.=%20'</b>';
return%20$linkPage;
}
/*%20在对象内部使用的私有方法，获取下一页和尾页的操作信息%20*/
private%20function%20nextlast(){
if($this->page%20!=%20$this->pageNum)%20{
$str%20=%20"%20<a%20href='{$this->uri}page=".($this->page+1)."'>{$this->config["next"]}</a>%20";
$str%20.=%20"%20<a%20href='{$this->uri}page=".($this->pageNum)."'>{$this->config["last"]}</a>%20";
return%20$str;
}
}
/*%20在对象内部使用的私有方法，用于显示和处理表单跳转页面%20*/
private%20function%20goPage(){
%20 if($this->pageNum%20>%201)%20{
return%20'%20<input%20style="width:20px;height:17px%20!important;height:18px;border:1px%20solid%20#CCCCCC;"%20type="text"%20onkeydown="javascript:if(event.keyCode==13){var%20page=(this.value>'.$this->pageNum.')?'.$this->pageNum.':this.value;location=/''.$this->uri.'page=/'+page+/'/'}"%20value="'.$this->page.'"><input%20style="cursor:pointer;width:25px;height:18px;border:1px%20solid%20#CCCCCC;"%20type="button"%20value="GO"%20onclick="javascript:var%20page=(this.previousSibling.value>'.$this->pageNum.')?'.$this->pageNum.':this.previousSibling.value;location=/''.$this->uri.'page=/'+page+/'/'">%20';
}
}
/*%20在对象内部使用的私有方法，用于获取本页显示的记录条数%20*/
private%20function%20disnum(){
if($this->total%20>%200){
return%20$this->end()-$this->start()+1;
}else{
return%200;
}
}
}
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