xml+php动态载入与分页

这是在看太平洋网的评论时看到的，太平洋网是用jsp做为后台语言，用来产生xml文件．然后在把数据绑定到html上的．我就用php也做了一个以下是源文件．

-----------------xml.htm------------------
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>xml</title>
</head>

<body>
<xml id="ShopList" src="xml.php"></xml>
<script>
  function jump(form)
  {
 if (form.pageNum.value>parseInt(pageCount.innerHTML)) return false;
 if (form.pageSize.value>parseInt(recordCount.innerHTML)) return false;
    ShopList.src="xml.php?pageNo="+form.pageNum.value+"&pageSize="+form.pageSize.value+"&time="+(new Date()).getTime();
  }
  function pageCount_onpropertychange(form)
  {
   if (form.pageNum.value>parseInt(pageCount.innerHTML)) form.pageNum.value=parseInt(pageCount.innerHTML);
 if (form.pageSize.value>parseInt(recordCount.innerHTML)) form.pageSize.value=parseInt(recordCount.innerHTML);
    if(form.pageNum.value==1)
    {
      form.firstPage.disabled=true;
      form.previousPage.disabled=true;
    }
    else
    {
      form.firstPage.disabled=false;
      form.previousPage.disabled=false;
    }
    if(form.pageNum.value==form.pageCount.value)
    {
      form.nextPage.disabled=true;
      form.lastPage.disabled=true;
    }
    else
    {
      form.nextPage.disabled=false;
      form.lastPage.disabled=false;
    }
  }
</script>
              <table width="100%" height="25" border="0" cellpadding="2" cellspacing="1" id="shopTbl" datasrc=#ShopList datafld=商铺>
    <thead>
                <tr>
                  <td height="25" colspan="4"><span class="shop_3d_text">店铺列表</span></td>
                </tr>
                <tr>
                  <td width="30%">商铺名称</td>
                  <td width="20%">经营者</td>
                  <td width="20%">店铺级别</td>
                  <td width="30%">店铺简介</td>
                </tr>
    </thead>
     <tbody>
     <tr STYLE="background-color:expression(rowIndex%2==1?'#EFEFEF':'#FFFFFF')">
    <td><a datafld="连接地址"><span datafld="名称">名称</span></a></td> 
    <td><span datafld="经营人">经营人</span></td>
    <td><span datafld="级别">级别</span></td>
    <td><span datafld="简介">简介</span></td>
     </tr>
     </tbody>
            </table>
   <form return onsubmit="jump(this);return false">
          <div align="right">
        每页显示
<input name=pageSize datasrc=#ShopList datafld=页大小 size=2>条，
  <input type=submit value="" style="width:0">
        共<span id="pageCount" datasrc=#ShopList datafld=页数量></span>页
        <span id="recordCount" datasrc=#ShopList datafld=数量 ></span>条

<input name=firstPage type=submit value=首页 onclick="pageNum.value=1">
        <input name=previousPage type=submit value=上页 onclick="pageNum.value=pageNum.value-1">
        第<input name=pageNum datasrc=#ShopList datafld=页号码 size=2>页
        <input name=nextPage type=submit value=下页 onclick="pageNum.value=(pageNum.value-0)+1">
        <input name=lastPage type=submit value=尾页 onclick="pageNum.value=pageCount.value" >
        <input name=pageCount type=hidden datasrc=#ShopList datafld=页数量 onpropertychange="pageCount_onpropertychange(form)">
      </div> </form>
</body>
</html>

-----------------xml.php------------------
<?php
//require_once "Source/Global.php";
 function getVars($get_vars, $post_vars) {

$i = count($get_vars);
  $j = count($post_vars);
  if ($i > 0 && $j > 0 ) {
   while(list($key, $val) = each($get_vars)) {
    $Vars[$key] = $val;
   }
   while(list($key2, $val2) = each($post_vars)) {
    $Vars[$key2] = $val2;
   }
  } elseif ($i > 0) {
   while(list($key, $val) = each($get_vars)) {
    $Vars[$key] = $val;
   }
  } elseif ($j > 0) {
   while(list($key2, $val2) = each($post_vars)) {
    $Vars[$key2] = $val2;
   }
  } else {
   $Vars = array();
  }
  return $Vars;
 }

$vars = getVars($HTTP_GET_VARS, $HTTP_POST_VARS);

//class shoplist_res extends iGlobal{
class shoplist_res{
    function shoplist_res($vars,$cookie){
     //$this->iGlobal($vars,$cookie);
        $this->outPut($vars,$cookie);
    }

//function _shoplist_res(){
 // $this->db->Close();
 //}
    function outPut($vars,$cookie){
  /*$strQuery = "select count(*) as rc from ".$this->db_c->Db_Pre."pshop order by id desc";
  $this->db->Query($strQuery);
  $RecordCount = $this->db->Assoc();
  $RecordCount = $RecordCount['rc'];
  @$this->db->freeResult();*/
  $RecordCount = 25;
  if (empty($vars['pageNo'])) $vars['pageNo']= 1;
  if (empty($vars['pageSize'])) $vars['pageSize']= 10;
  $PageCount = ceil($RecordCount/$vars['pageSize']);
  if ($vars['pageSize']>$RecordCount) $vars['pageSize']=$RecordCount;
  if ($vars['pageNo']>$PageCount) $vars['pageNo']=$PageCount;
  $xmlStr.= "<?xml version=\"1.0\" encoding=\"GBK\" ?>"."\n";
  $xmlStr.= "<商铺列表>"."\n";
  $xmlStr.= "\t<翻页工具 pageNo=\"".$vars['pageNo']."\" pageSize=\"".$vars['pageSize']."\" total=\"".$RecordCount."\"></翻页工具>"."\n";
  $xmlStr.= "\t<页号码>".$vars['pageNo']."</页号码>"."\n";
  $xmlStr.= "\t<页大小>".$vars['pageSize']."</页大小>"."\n";
  $xmlStr.= "\t<数量>".$RecordCount."</数量>"."\n";
  $xmlStr.= "\t<页数量>".$PageCount."</页数量>"."\n";
  //$strQuery = "select t1.*,t2.* from ".$this->db_c->Db_Pre."pshop as t1,".$this->db_c->Db_Pre."shoptype as t2 where t1.typenum=t2.typenum order by id desc "
  //   ."limit ".($vars['pageNo']-1)*$vars['pageSize'].",".$vars['pageSize'];
     //die($strQuery);
  //$this->db->Query($strQuery);
  /*while($result = $this->db->Assoc()){
   $xmlStr.= "\t"."\n";
   $xmlStr.= "\t<商铺>"."\n";
   $xmlStr.= "\t\t<名称><![CDATA[".$result['shopname']."]]></名称>"."\n";
   $xmlStr.= "\t\t<经营人><![CDATA[".$result['shopmaster']."]]></经营人>"."\n";
   $xmlStr.= "\t\t<级别><![CDATA[".$result['shoptype']."]]></级别>"."\n";
   $xmlStr.= "\t\t<简介><![CDATA[".$result['shopintro']."]]></简介>"."\n";
   $xmlStr.= "\t\t<连接地址><![CDATA[personal_shop.php?id=".$result['id']."]]></连接地址>"."\n";
   $xmlStr.= "\t</商铺>"."\n";
  }*/
  $sc= $vars['pageNo']*$vars['pageSize'];
  if ($sc>$RecordCount) $sc = $RecordCount;
  for($i=($vars['pageNo']-1)*$vars['pageSize'];$i<$sc;$i++){
   $xmlStr.= "\t"."\n";
   $xmlStr.= "\t<商铺>"."\n";
   $xmlStr.= "\t\t<名称><![CDATA[这是名称：".$i."]]></名称>"."\n";
   $xmlStr.= "\t\t<经营人><![CDATA[这是经营人：".$i."]]></经营人>"."\n";
   $xmlStr.= "\t\t<级别><![CDATA[这是级别：".$i."]]></级别>"."\n";
   $xmlStr.= "\t\t<简介><![CDATA[这是简介：".$i."]]></简介>"."\n";
   $xmlStr.= "\t\t<连接地址><![CDATA[personal_shop.php?id=".$i."]]></连接地址>"."\n";
   $xmlStr.= "\t</商铺>"."\n";
  }
  $xmlStr.= "</商铺列表>"."\n";
  header("Content-type: text/xml\n\n");
  echo $xmlStr;
    }
}

$shoplist = new shoplist_res($vars,$HTTP_COOKIE_VARS);
//$shoplist->_shoplist_res();
unset($sthoplist);
?>

以上的php，注释的是我连接数据库取得的数据，既然放上来测试，也没有数据库连接，所以改了一下．偶也是刚接解xml不久，很多地方还是不很懂．见笑了......