大家来讨论一下这样写PHP的弊和利端吧。类似java的MVC

模仿的MVC。看看这样到底好不好。或者提供更好的编程思想。大家讨论讨论吧。
源码如下。业务对outbox表进行了一个查询。并分页。功能基本上完成。一共有5个PHP page。
源码文件分为：
不好意思名字命名跟php不是很规范
dao:outboxdao.php,//访问数据库操作
biz:outboxbiz.php,//业务类
view displaybox.php.//显示数据

公共类：
pageBean.php//封装分页的业务
DBConnection.PHP//得到连接数据库的

下面是源码。

//outboxdao.php

include_once("../../comm/dao/DBConnection.php");

class outboxdao{

	/**

	 * 得到数组

	 */

	public function getList($offset,$pageSize){



		$dbconndb = new DBConnection();

		$conn = $dbconndb->getConnection();

		mysql_select_db("kalkun");

		mysql_query("set names gb2312");

		$sql="select ID, DestinationNumber,TextDecoded ,InsertIntoDB from outbox order by ID asc  limit ".$offset.",".$pageSize;

		$ret = mysql_query($sql,$conn);

		//echo $sql."<br/>";

		while($list=mysql_fetch_array($ret)){

			$row[] = $list;

		}

		mysql_close($conn);

		return $row;



	}

/**

 * 统计总行数

 */

  public function countAllRow(){

  		$dbconndb = new DBConnection();

		$conn = $dbconndb->getConnection();

		mysql_select_db("kalkun");

		$sql="select count(1) from outbox ";

		$ret=mysql_query($sql);

		$row = mysql_fetch_array($ret);

		mysql_close($conn);

		return $row[0];



  }

}

?>

//comm/dao/DBConnection.php

<?php

 class DBConnection{

 	public  static  $dbname;

	public static $dbaddr="localhost";

	public static  $dbName="root";

	public  static $dbpassword="sa";

	public static  $dbconInstance = null;



/**

 * 得到连接

 */

	public static function getConnection(){

		return mysql_connect(DBConnection::$dbaddr,DBConnection::$dbName,DBConnection::$dbpassword);



	}

/**

 * 关闭连接

 */

	public static function closeCon($link){

		mysql_close($link);

	}

 }

?>

<?php

//pageBean.php 分页封装类

class pageBean {

	   private  $allRow=0;//总行数

	   private  $currentPage;//当前页

	   private  $pageSize ;//每页显示行数

	   private  $totalPage ;//总页数



	   private $dadalist = array();//存储数据集合





public function setDatalist($dadalist){

	$this->dadalist=$dadalist;



}

public function getDatalist(){

	//print_r($this->datalist);

	return $this->dadalist;

}



public function setAllRow($allRow){

	$this->allRow=$allRow;

}

public function getAllRow(){

	return $this->allRow;

}

public function setCurrentPage($currentPage)

{

	$this->currentPage=$currentPage;

}

public function getCurrentPage(){

	return $this->currentPage;

}

public function setPageSize($pagesize){

	$this->pageSize=$pagesize;

}

public function getPageSize(){

	return $this->pageSize;

}



public function setTotalPage($totalPage){

	$this->totalPage=$totalPage;

}

public function getTotalPage(){

	return $this->totalPage;

}

	/**

	 * 统计总页数

	 */

	static function  countPage($pagesize, $countrow) {

		//$pageCount= countrow()%$pagesize==0?(countrow()/$pagesize):((int)(countrow()/$pagesize)+1);

		if ($countrow % $pagesize == 0) {

			$pageCount = $countrow / $pagesize;

		} else {

			$pageCount = (int) ($countrow / $pagesize) + 1;



		}

		return $pageCount;

	}

	/**

	 * 计算当前指开始记录数

	 */

	static function countOffset($pagesize, $currentPage) {

		return $pagesize * ($currentPage -1);

	}

}

?>

//outboxbiz.php

<?php

/*

 * Created on 2010-7-21

 *

 * To change the template for this generated file go to

 * Window - Preferences - PHPeclipse - PHP - Code Templates

 */

include_once("outboxdao.php");

include_once("../pageBean.php");

 class outboxbiz{

 	public function  getoutboxPageBean($currentPage,$pageSize){

		$outboxdao = new outboxdao();

		$dbconn = new DBConnection();

		$offset = pageBean::countOffset($pageSize,$currentPage);//计算开始记录数

		$allRow = $outboxdao->countAllRow();//得到总行数

		$row = $outboxdao->getList($offset,$pageSize);//指定到数据

		pageBean::countPage($pageSize,$allRow);//总页数

		//print_r($row);

		$pageBean = new pageBean();

		$pageBean->setAllRow($allRow);

		$pageBean->setPageSize($pageSize);

		$pageBean->setCurrentPage($currentPage);

		$pageBean->setDatalist($row);

		$pageBean->setTotalPage(pageBean::countPage($pageSize,$allRow));

		$datalist=$pageBean->getDatalist();

		return $pageBean;



 	}

 }

?>

//displayoutbox.php

<html>

<head>

<meta http-equiv="Content-Language" content="en" />

<meta name="GENERATOR" content="PHPEclipse 1.0" />

<meta http-equiv="Content-Type" content="text/html; charset=gbk" />

<title>title</title>

</head>

<body bgcolor="#FFFFFF" text="#000000" link="#FF9966" vlink="#FF9966" alink="#FFCC99">

<TABLE  id=oTableHead border=1>

		<TR>

			<td class=Ibx_td_From>

					ID

			</td>

			<td class=Ibx_td_From>

					收信号码

			</td>

			<td class=Ibx_td_Subject>

					主题

			</td>

			<td class=Ibx_td_Date>

						日期

			</td>

		</TR>

		<?php

			include_once("outboxbiz.php");

			include_once("../pageBean.php");

			$outboxbiz=new outboxbiz();

			$pageSize=10;

			$page=$_GET["p"];

			echo $page;

			$currentPage=isset($page)?intval($page):1;



			$pageBean = $outboxbiz->getoutboxPageBean($currentPage,$pageSize);

			$currentPage=$pageBean->getCurrentPage();

			$pageCount=$pageBean->getTotalPage();

			//$row=$pageBean->datalist;//此处不明：pageBean 类中的定义私用变量。

			//$row = array();

			$row = $pageBean->getDatalist();//此处变量row得不到值。

			foreach($row as $val){

				echo "<tr><td>".$val["ID"]."</td><td>".$val["DestinationNumber"]."</td><td>".substr($val["TextDecoded"],0,10)."</td><td>".$val["InsertIntoDB"]."</td></tr>";

			}?>



			</table>

			<table>

				<tr>

<td>

				<?php



				$stringPage;

if($currentPage==1){

	$stringPage.="首页  上页";

}else{

	$stringPage.="<a href=?p=1>第一页</a>|<a href=?p=".($currentPage-1).">上一页</a>|";

}



if($currentPage==$pageCount || $pageCount==0){

	$stringPage.="末页  下页";

}else

{

	$stringPage.="<a href=?p=".$pageCount.">末页</a>|<a href=?p=".($currentPage+1).">下一页</a>|";

}

echo "<center>".$stringPage."</center>";



?>



				</td>

				</tr>

			</table>

			</body>

</html>

数据库表结构
CREATE TABLE `outbox` (
`ID` int(11) unsigned NOT NULL AUTO_INCREMENT,
`UpdatedInDB` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`InsertIntoDB` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
`SendingDateTime` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
`Text` text,
`DestinationNumber` varchar(20) NOT NULL DEFAULT '',
`Coding` enum('Default_No_Compression','Unicode_No_Compression','8bit','Default_Compression','Unicode_Compression') DEFAULT '8bit',
`UDH` text,
`Class` int(11) DEFAULT '-1',
`TextDecoded` varchar(350) NOT NULL DEFAULT '',
`MultiPart` enum('false','true') DEFAULT 'false',
`RelativeValidity` int(11) DEFAULT '-1',
`SenderID` text,
`SendingTimeOut` timestamp NULL DEFAULT '0000-00-00 00:00:00',
`DeliveryReport` enum('default','yes','no') DEFAULT 'default',
`Idfolder` int(11) DEFAULT '2',
`CreatorID` text,
PRIMARY KEY (`ID`),
UNIQUE KEY `ID` (`ID`)
) ENGINE=MyISAM AUTO_INCREMENT=223 DEFAULT CHARSET=utf8;