大神帮我看下，我的查询分页类哪里错了分页类
<br>
这是page.class.php<br>
<?php<br>
class DividePage{//分页类<br>
private $total;//要显示的总记录数<br>
private $url;//请求的URL地址<br>
private $displaypg;//每页显示的记录数，默认为每页显示10条记录<br>
private $page;//当前页码<br>
private $lastpg;//总页数，即最后一页的页码<br>
private $prepg;//前一页<br>
private $nextpg;//后一页<br>
private $firstcount;//记录条数开始的序号从0开始<br>
private $startd;//记录条数开始的记录号.<br>
private $stopd;//记录条数结束的记录号.<br>
<br>
//构造函数<br>
public function __construct($url, $total, $displaypg){<br>
$this->url = $url;//请求的URL<br>
$this->total = $total;//总记录数<br>
//if($displaypg == '')<br>
$this->displaypg = $displaypg;//每页显示的记录数<br>
$this->initDividePage();//初始化分页类<br>
//echo ','.$this->displaypg;<br>
}<br>
<br>
//初始化分页类<br>
private function initDividePage(){<br>
//分析URL<br>
$parse_url = parse_url($this->url);//将URL解释为有固定键值对的数组<br>
$url_query = $parse_url['query'];//取出URL中的查询字符串<br>
if($url_query){//如果有查询字符串，则删除查询字串中当前页的查询字段如：&page=$page或page=$page<br>
ereg('(^|&)page=([0-9]*)', $url_query, $k);<br>
$this->page = $k[2];//取得当前页的值<br>
$url_query = ereg_replace("(^|&)page=$this->page", '', $url_query);//删除查询字串中当前页的查询字段如：&page=$page或page=$page<br>
$this->url = str_replace($parse_url['query'], $url_query, $this->url);//保留其他的查询字串，<br>
$this->page = $this->page ? $this->page : 1;//如果查询字符串中没有当前页的值就设当前页为1<br>
if($url_query){//如果有其他查询字符串，则以&page=$page形式添加翻页查询字串<br>
$this->url .= '&page';<br>
}else{//如果没有其他查询字串，则以page=$page形式添加翻页查询字串<br>
$this->url .= 'page';<br>
}<br>
}else{//如果没有查询字串，则在URL后添加?page=$page形式的翻页查询字串<br>
$this->page = 1;<br>
$this->url .= '?page';<br>
}<br>
$this->lastpg = ceil($this->total / $this->displaypg);//计算总页数，即最后一页的页码<br>
$this->page = min($this->lastpg, $this->page);//如果当前页大于总页数，则当前页为最后一页的页码<br>
$this->prepg = $this->page - 1;//上一页为当前页减一<br>
$this->nextpg = $this->page + 1;//(($this->page == $this->lastpg) ? $this->lastpg : ($this->page + 1));//下一页为当前页加一，如果当前页为最后一页，则下一页为0<br>
$this->firstcount = ($this->page - 1) * $this->displaypg;//计算当前页，记录条数开始的记录号，从0开始.<br>
$this->startd = $this->total ? ($this->firstcount + 1) : 0;//记录开始号从1开始<br>
$this->stopd = min($this->firstcount + $this->displaypg, $this->total);//记录结束号<br>
//echo $this->displaypg;<br>
//echo $this->nextpg.'+=+='.$this->lastpg;<br>
}<br>
<br>
public function getPageInfo(){//取得当前页面的基本信息，如：显示第 1-10 条记录，共 23 条记录。<br>
return '<span class="pageinfostyle">显示第<span class="numstyle">'.$this->startd.'-'.$this->stopd.'</span>条记录，共<span class="numstyle">'.$this->total.'</span>条记录。</span>';<br>
}<br>
<br>
public function getCommonPageNav(){//取得通常的分页导航，如：首页 上一页 下一页 尾页<br>
$commonnav = '';<br>
if($this->lastpg == 1){//如果只有一页，则返回翻页导航，退出，不显示下一页，上一页等。。。<br>
return $commonnav;<br>
break;<br>
}<br>
$commonnav = '<a href="'.$this->url.'=1" class="compagestyle">首页</a>';//设置首页导航，page=1<br>
if($this->prepg){<br>
$commonnav .= '<a href="'.$this->url.'='.$this->prepg.'" class="compagestyle">上一页</a>';<br>
}else{ <div class="clear">
</div>
