PHP实例：推荐一款PHP+jQuery制作的列表分页的功能模块

<?php
class MyPageUrl{
  private $totalNum;
  private $perpageNum;    //每页显示条数  
  private $pageNow;      //当前页页码
  private $url;        //当前url
  
  //页码显示
  private $pageStyle; //页码样式,提供2种样式
  private $prePage;    //页码前偏移量
  private $floPage;    //页码后偏移量
  private $skipStyle;    //手动跳转,0为手动输入页码,1为下拉菜单选择页码
  private $page_act;    //翻页样式 0:url 1:ajax
  //页码文字
  //style2&style3
  private $firstFonts = "首页";
  private $lastFonts = "末页";
  private $nextFonts = "下一页 >";    
  private $preFonts = "< 上一页";
  //前n页,后n页
  private $page_n;
  private $pn = 10;
  private $pn_fonts = "前10页";
  private $fn = 10;
  private $fn_fonts = "后10页";
  //展现的页码
  private $pageShow;
  //构造函数
  function __construct($totalNum,$perpageNum,$prePage,$preFonts,$floPage,$nextFonts,$p,$skipStyle,$pageStyle,$page_n,$page_act){
  
    $this->totalNum = $totalNum;
    $this->perpageNum = $perpageNum;
    $this->prePage = $prePage;
    $this->floPage = $floPage;
    $this->skipStyle = $skipStyle;
    $this->pageStyle = $pageStyle;
    $this->page_n = $page_n;
    $this->page_act = $page_act;
    $this->getPageNow($p);
    $this->totalPage = $this->getTotalPage(); //总页数
    $this->pageShow = "";
    $this->getUrl();
  }
      
  /************定义__toString办法,把对象解析成字符串******/
  public function __toString(){
  
    return $this->pageShow;
  }
  /************获得当前页页码,$p用来接收$_GET['p']*******/
  public function getPageNow($p){
  
    if(!isset($p)){
      
      $this->pageNow = 1;
    }else if($p>0){
      
      $this->pageNow = $p;  
    }else{
    
      die("page number error");
    }
    return $this->pageNow;
  }
  /***********************设置当前页面链接***************/
  public function getUrl(){
    $url = "http://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
    
    //判断是否带参数
    if(strpos($url,"?") === false){ //不带参数
      return $this->url = $url."?";
    }else{ //带参数
    
      $url = explode("?",$url);
      //参数
      $param = $url[1];
      //判断是否有多个参数
      if(strpos($param,"&") === false){ //只有一个参数
  
        //判断参数是否为p
        if(strpos($param,"p=") === false){ //不含参数p
        
          //合并url
          $url = implode("?",$url);  
          return $this->url = $url."&";
        }else{
        
          //把参数p去掉
          $url = $url[0];
          return $this->url = $url."?";
        }
        
      }else{ //多个参数
      
        $param = explode("&",$param);
        //遍历参数数组
        foreach($param as $k=>$v){
          if(strpos($v,"p=") === false){
            
            continue;
          }else{
      
            //当含有参数p时,把它从数组中删除
            unset($param[$k]);
          }
        }
          //删除参数p之后组合数组
          $param = implode("&",$param);
          $url[1] = $param;
          $url = implode("?",$url);
          return $this->url = $url."&";
      }
    }
  }
  /************************前偏移量处理********************/
  public function preOffset($preFonts){
  
    //前偏移量的处理
    if($this->pageNow!=1 && ($this->pageNow - $this->prePage -1 <= 1)){
          
      //上一页
      $this->pageShow .= "<a id=\"per_page\" class=\"pagenum\" href=\"".$this->url."p=".($this->pageNow-1)."\">".($preFonts == ""?$this->preFonts:$preFonts)."</a>";
      
      //页码
      for($i=1;$i<=$this->pageNow-1;$i++){    
        //ajax方式不显示
        if($this->page_act != 1){
          $this->pageShow .= "<a class=\"pagenum\" href=\"".$this->url."p=".$i."\">".$i."</a>";  
        }
      }
    }else if($this->pageNow - $this->prePage -1 > 1){ //pageNow至少大于2时才会出现"1..."
      
      //样式1.加上'首页'
      if($this->pageStyle == 2 || $this->page_act == 1){
        
        //首页
        $this->pageShow .= "<a id=\"first_page\" class=\"pagenum\" href=\"".$this->url."p=1\">".$this->firstFonts."</a>";
        //style2.前n页
        if($this->page_n == 1 && $this->page_act != 1){
        
          if($this->pageNow>$this->pn){
          
            $this->pageShow .= "<a id=\"pre_n_page\" class=\"pagenum\" href=\"".$this->url."p=".($this->pageNow-$this->pn)."\">".$this->pn_fonts."</a>";
          }
        }
      }
      
      
      //上一页
      $this->pageShow .= "<a id=\"pre_page\" class=\"pagenum\" href=\"".$this->url."p=".($this->pageNow-1)."\">".($preFonts == ""?$this->preFonts:$preFonts)."</a>";
      
      //样式1.加上第一页'1'、'...'
      if($this->pageStyle == 1){
        $this->pageShow .= "<a class=\"pagenum\" href=\"".$this->url."\">1</a><a id=\"pre_page_2\" class=\"pagenum\" href=\"".$this->url."p=".($this->pageNow-$this->prePage-1)." \" title=\"第".($this->pageNow-$this->prePage-1)."页\">…</a>";
      }
      for($i=$this->prePage;$i>=1;$i--){    
        //当前页和'...'之间的页码,ajax方式不显示
        if($this->page_act != 1){
          $this->pageShow .= "<a class=\"pagenum\" href=\"".$this->url."p=".($this->pageNow-$i)."\">".($this->pageNow-$i)."</a>";  
        }
      }
    }
  }
  /**********************页码和后偏移量处理***************************/
  public function floOffset($nextFonts){
  
    if($this->totalPage > $this->floPage){ //总页数大于后偏移量时
    
      for($i=0;$i<=$this->floPage;$i++){
      
        $page = $this->pageNow+$i;
        
        if($page<=$this->totalPage){
          //页码,ajax方式不显示
          if($this->page_act != 1){
            $this->pageShow .= "<a class=\"pagenum\" href=\"".$this->url."p=".$page."\">".$page."</a>";
          }
        }
      }
      if($this->pageNow < $this->totalPage){
        
        //当前页+后偏移量+1小于总页数时出现"..."
        if(($this->pageNow+$this->floPage+1)<$this->totalPage){
      
          //样式1.显示'...'
          if($this->pageStyle == 1){
            $this->pageShow .= "<a id=\"flo_page_2\" class=\"pagenum\" href=\"".$this->url."p=".($page+1)."\" title=\"第".($page+1)."页\">…</a>";
          }
        }
        
        
        //当前页+后偏移量+1小于等于总页数时出现最后一页的快捷标签
        if(($this->pageNow+$this->floPage+1)<=$this->totalPage){
        
          //最后一页
          //样式1.始终出现'最后一页页码'
          if($this->pageStyle == 1){
            $this->pageShow .= "<a class=\"pagenum\" href=\"".$this->url."p=".$this->totalPage."\" title=\"总共".$this->totalPage."页\">".$this->totalPage."</a>";
          }
        }            
        $this->pageShow .= "<a id=\"flo_page\" class=\"pagenum\" href=\"".$this->url."p=".($this->pageNow+1)."\">".($nextFonts == ""?$this->nextFonts:$nextFonts)."</a>"; //当实例化对象时用户传递的文字为空时则调用类预设的"下一页",否则输出用户传递的值
        //style2.加上后n页
        if($this->pageStyle == 2 && $this->page_n == 1 && $this->page_act != 1){
        
          if(($this->pageNow+10)<$this->totalPage){
          
            $this->pageShow .= "<a id=\"flo_n_page\" class=\"pagenum\" href=\"".$this->url."p=".($this->pageNow+$this->fn)."\">".$this->fn_fonts."</a>";
          }
        }
        //显示'末页'
        if($this->pageStyle == 2){
        
          if(($this->pageNow+$this->floPage+1)<$this->totalPage){
            $this->pageShow .= "<a id=\"last_page\" class=\"pagenum\" href=\"".$this->url."p=".$this->totalPage."\">末页</a>";
          }
        }
      }else if($this->pageNow > $this->totalPage){
      
        die("超出页码范围");
      }
    }else{ //总页数小于后偏移量时
      
      for($i=0;$i<$this->totalPage;$i++){
      
        $page = $this->pageNow+$i;
        //页码后边界
        $this->pageShow .= "<a class=\"pagenum\" href=\"".$this->url."p=".$page."\">".$page."</a>";
      }
    }
  }
  /********************其它页面信息***********************/
  public function getOtherInfo(){
  
    //ajax方式不显示手动跳转信息
    if($this->page_act != 1){
      $this->pageShow .= " 跳转至 ";
      //跳转类型
      if($this->skipStyle =="" ){ //不加跳转
    
        $this->pageShow .= "";
      }else if($this->skipStyle == 1){ //输入框
    
        $this->pageShow .= "<input id=\"skip\" type=\"text\" value=\"".$this->pageNow."\">";
    
        $this->pageShow .= "<button id=\"go\">GO</button>";
      }else if($this->skipStyle == 2){ //下拉菜单
    
        //选择下拉菜单自动跳转
        $this->pageShow .= "<select id=\"select_page\" onchange=\"location.href=this.options[this.selectedIndex].value;\" >";
      
        for($i=1;$i<=$this->totalPage;$i++){
      
          $this->pageShow .= "<option value=\"".$this->url."p=".$i."\""; 
        
          //下拉菜单默认显示当前页
          if($i == $this->pageNow){
        
            $this->pageShow .= " selected";
          }
        
          $this->pageShow .= ">".$i."</option>";
        }
      
        $this->pageShow .= "</select>";
      }
    }
    $this->pageShow .= "<span id=\"pagenow_info\">  当前第".$this->pageNow."页</span>";
    $this->pageShow .= "/<span id=\"totalpage_info\">共".$this->totalPage."页</span>";
    $this->pageShow .= " <span id=\"totalNum_info\">共".$this->totalNum."条</span>";
  }
  
  /*****************获取每页第一条信息*****************/
  public function getFirstRow(){
  
    $firstRow = $this->perpageNum * ($this->pageNow-1) + 1;//当前页第一条是总条数中第几条
    return $firstRow;
  }
  
  /********************获得总页数***********************/
  public function getTotalPage(){
  
    $totalPage = ceil($this->totalNum / $this->perpageNum);
    return $totalPage;
  }
  /* ****************获取上一页、下一页文字*************** */
  public function getPreFonts($preFonts){
  
      return ($preFonts=="")?$this->preFonts:$preFonts;
  }
  
  public function getNextFonts($nextFonts){
  
      return ($nextFonts=="")?$this->nextFonts:$nextFonts;
  } 
}

<?php
require 'init.inc.php';
require 'page.class.php';
require 'conn/conn.php';
$perpageNum = 10; //每页数据条数
$perPage = 4; //前分页偏移量
$floPage = 4; //后分页偏移量
$preFonts = ""; //"前一页"文字内容
$nextFonts = ""; //"下一页"文字内容
$page_n = 1; //样式2下是否加"前n页"、后n页,0为不加,1为加
$skipStyle = 1; //跳转类型,可选1、2
$pageStyle = 1; //样式类型,可选1、2、3( 样式3只包含"上一页"、"下一页"和页码 )
$page_act = 0; //0:url 和 1:ajax
if($page_act == 1){
  //ajax方式分页时强制使用第二种样式
  $pageStyle = 2;
}
$p = isset($_GET['p'])?$_GET['p']:1; //当前页码
//在page.class.php中定义__toString办法,把对象$mypage解析成字符串输出
//参数分别是:总条数、每页条数、前偏移量、"上一页"文字内容(默认为""时显示"上一页")、后偏移量、"下一页"文字内容(默认为""时显示"下一页")、当前地址栏页码数、手动跳转样式、页码显示样式、样式2是否加前n页后n页、分页方式(url/ajax)
//获得总条数
//输出列表
$sql_all = "select title from ips_archives";
//总条数
$totalNum = $conne->getRowsNum($sql_all);
//实例化
$mypageurl = new MyPageUrl($totalNum,$perpageNum,$perPage,$preFonts,$floPage,$nextFonts,$p,$skipStyle,$pageStyle,$page_n,$page_act);
//每页第一条
$firstRow = $mypageurl->getFirstRow();
//总条数
$totalPage = $mypageurl->getTotalPage();
//输出列表
$sql = "select title from ips_archives order by pubdate desc limit ".$firstRow.",".$perpageNum;
//取出数据(二维数组)
$rowsArray = $conne->getRowsArray($sql);
//显示页码
$pageShow = $mypageurl->preOffset($preFonts).$mypageurl->floOffset($nextFonts).$mypageurl->getOtherInfo();
$smarty->assign("Template_Dir",Template_Dir);
$smarty->assign("page_act",$page_act); //传递分页方式
$smarty->assign("pageNow",$p); //传递当前页
$smarty->assign("perpageNum",$perpageNum); //传递每页几条数据
$smarty->assign("totalPage",$totalPage); //传递总页数
$smarty->assign("preFonts",$mypageurl->getPreFonts($preFonts)); //传递上一页文字信息
$smarty->assign("rowsArray",$rowsArray);
$smarty->assign("mypage",$mypageurl);
$smarty->display("demo.html");

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>PHP分页类</title>
<link href="<{$Template_Dir}>/css/common.css" rel="stylesheet" type="text/css">
<link href="<{$Template_Dir}>/css/style1.css" rel="stylesheet" type="text/css">
<script id="jq" src="<{$Template_Dir}>/js/jquery-1.8.3.min.js"></script>
</head>
<body>
  <div id="list">
    
    <ul id="newsul">
      
      <{foreach $rowsArray as $val}>
        <li><{$val['title']}></li>
      <{/foreach}>
    </ul>
  </div>
  <div id="page"><{$mypage}></div>
  <input id="pageNow" type="hidden" value="<{$pageNow}>">
  <!--分页方式-->
  <input id="page_act" type="hidden" value="<{$page_act}>">
  <!--每页几条数据-->
  <input id="perpageNum" type="hidden" value="<{$perpageNum}>">
  <!--总页数-->
  <input id="totalPage" type="hidden" value="<{$totalPage}>">
  <!--//把smarty的变量传递给外部js-->
  <input id="Template_Dir" type="hidden" value="<{$Template_Dir}>">
  <input id="preFonts" type="hidden" value="<{$preFonts}>">
</body>
<script>
  $(function(){
  
    //遍历a
    $(".pagenum").each(function(){
    
      if($(this).text() == $("#pageNow").val()){
    
        $(this).addClass("selected");
      }
    });
    
    //如果存在跳转输入框
    if($("#skip").length>0){
    
      $("#skip").keydown(function(){
      
        if(event.keyCode == 13){ //回车
        
          self.location="demo.php?p="+$(this).val();
        }
      });
    }
    //点击"GO"按钮跳转
    if($("#go").length>0){
    
      $("#go").click(function(){
      
        self.location="demo.php?p="+$("#skip").val();
      });
    }
    
    //如果分页方式是ajax,则加载外部ajax.js
    if($("#page_act").val() == 1){
    
      //把smarty的变量传递给外部js
      $Template_Dir = $("#Template_Dir").val();
      $preFonts = $("#preFonts").val();
      $insertAjax = $("<script src=\"<{$Template_Dir}>/js/ajax.js\"><\/script>");
      $insertAjax.insertAfter($("#jq"));
    }
    //最后一行row去失落border-bottom
    $("#list ul").children("li:last").css("border-bottom",0);
  });
</script>
</html>

<?php
require 'conn/conn.php';
if(isset($_POST['pageNow']) && !empty($_POST['pageNow'])){
  $pageNow = $_POST['pageNow'];
}
//每页几条数据
if(isset($_POST['perpageNum']) && !empty($_POST['perpageNum'])){
  $perpageNum = $_POST['perpageNum'];
}
//当前页第一条数据
$firstRow = $perpageNum * ($pageNow-1) + 1;
$sql = "select title from ips_archives order by pubdate desc limit ".$firstRow.",".$perpageNum;
$rowsArray = $conne->getRowsArray($sql);
//把二维数组转换成json格局
echo json_encode($rowsArray);