PHP的页面布局怎样设计

大家好，我有一个问题向大家请教。我们公司的网站是用PHP开发的，现在我们需要更改页面的布局，但是用DREAMWEAVER2004MX打开PHP代码后，在设计栏只看到几个字符，图片、布局都不显示，咋回事？代码如下：

<?

if(!session_is_registered("user_session"))
{
session_start(); //session_start()要写在首页的第一行，因为在他之前不能有任何html标记，否则PHP提示出错。
}
?>
<?
include("./manager/dbclass.php");
$dbobj=new DBclass;
$dbobj->connect();

function Gettime($JKLDate)
{ $date_array = explode("-",$JKLDate);

$var_year = $date_array[0];
$var_month = $date_array[1];
$var_day = $date_array[2];

$var_time = mktime(0,0,0,$var_month,$var_day,$var_year);
return($var_time);
}

function ConvertTime($strTime)
{
$strCovertTime = trim($strTime);
$strCovertTime = substr($strCovertTime,0,4)."-".substr($strCovertTime,4,2)."-".substr($strCovertTime,6,2);
return($strCovertTime);
}

function ConvertType($strType)
{
$strCovertType = trim($strType);
$strCovertType = substr($strCovertType,0,4)."交易";
return($strCovertType);
}

</td>
</tr>

</table>
</td>
</tr>
<tr>
<td style="padding-left:11px"><a href="http://www.haee.com.cn" title="合肥市产权交易中心" target=_blank><img border=0 src="./images/haee.gif"></a></td>
</tr>
<tr>
<td style="padding-left:11px"><a href="http://www.gqtg.com.cn" title="合肥股权托管交易所" target=_blank><img border=0 src="./images/gqtg.gif"></a></td>
</tr>
<tr>
<td style="padding-left:2px; background-image:url(./images/bg_left_botton2.gif);background-repeat:no-repeat;" width=165px height=197px valign=top>
<table border=0 cellspacing=0 cellpadding=0>
<tr>
<td style="padding-top:0px"><a href="./lyb/lyb.php"><img border=0 src=./images/link_gwly.gif border=0></a></td>
</tr>
<tr>
<td style="padding-top:0px"><a href="http://mail.haee.com.cn"><img border=0 src=./images/link_email.gif border=0></a></td>
</tr>
<tr>
<td align=center style="padding-top:13px;padding-left:80px;padding_right:5px" >
<?
$counterfile="access.txt";
if (file_exists($counterfile)) {
$fp=fopen($counterfile,"r+");
$access=fgets($fp,8);
//echo $user_session;
//echo "dddd";
if(!session_is_registered("user_session")) {//有问题，找出合适的条件，如果是新的会话（sesion）则执行+1操作；
$access+=1;
rewind($fp);
fputs($fp,$access,8);
//session_start(); //session_start()要写在首页的第一行，因为在他之前不能有任何html标记，否则PHP提示出错。
session_unregister("user_session");
session_register("user_session");
$user_session="";
}
fclose($fp);
}
else {
$fp=fopen($counterfile,"w");
$access="1";
fputs($fp,$access,8);
fclose($fp);
}
?>
<font color=#0034BA><?=$access?>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>

<td width=601px align=center height="755px" border=0 style="background-image:url();background-repeat:no-repeat;padding-left:0px;" valign=top>
<table width=601px border=0 cellspacing=0 cellpadding=0 valign=top style="background-image:url(./images/bg_right.gif);background-repeat:no-repeat;">
<tr >
<td colspan=2 style="padding-top:8px;padding-left:5px" width=586px height=158px valign=top >
<table cellspacing=0 cellpadding=0 border=0 >
<tr>
<td width=586px height=146px style="background-image:url(./images/bg_kjdt1.gif);background-repeat:no-repeat;" cellspacing=0 cellpadding=0 valign=top>
<table cellspacing=0 cellpadding=0 border=0>
<tr><td colspan=3 valign=middle height=25px style="padding-top:0px;padding-left:518px"><a href="./zxzx/index.php?type=科技动态" border=0 target=_blank ><font color=red style="font-size:10pt;line-height:0px;">更多 >>></font></a>
</td></tr>
<tr><td height=0px></td></tr>
<?
$dbobj->strsql="select top 5 * from tb_news where disp = 1 and type_name = '科技动态' order by info_time desc";
$dbobj->exec();
for ($i=1;$i<=5;$i++)
{
if (!$array=$dbobj->getarray()) {break;}
$thisbg="<a class=bt1 href=zxzx/detail.php?code=".$array["code"]." target=_blank title=".$array["title"]." border=0>";
$strTime=" [" . ConvertTime($array["info_time"]) ."]";
$totallen=64;
$str=$array["title"];
if (strlen($array["title"])>$totallen)
{
if(strlen($array["title"])%2=='1')
{$num=$totallen-4;}
else
{$num=$totallen-3;};
$str=wordscut($array["title"],0,$num)."...";
}
else
$num=strlen($array["title"]);
echo "<tr ><td align=left style='padding-left:20px;padding-right:10px'><IMG algin=middle SRC='images/arrow.gif' BORDER=0 ALT=''></td><td width=500px style=/"font-size:8pt/">".$thisbg."<font style=/"line-height:22px;letter-spacing:0.06em;font-size:9pt/">".$str."</a></font>";

echo "<td width=100px align=center ><font style='font-size:9pt'>".$strTime."</font></td></tr>/n";

}
$dbobj->clearresult();
?>

</table>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width=433px height=597 valign=top>
<table cellspacing=0 cellpadding=0 border=0 >
<tr>
<td style="background-image:url(./images/bg_zdtj1.gif);background-repeat:no-repeat;" width=430px height=146px valign=top>
<table cellspacing=0 cellpadding=0 valign=top >
<tr><td colspan=3 valign=middle height=25px style="padding-top:0px;padding-left:365px"><a href="./zdtj/index.php" border=0 target=_blank ><font color=red style="font-size:10pt;">更多 >>></font></a>
</td></tr>
<tr><td>
<marquee direction=up height=110 id=scrollArea onMouseOut=scrollArea.start() onMouseOver=scrollArea.stop() scrollamount=1 scrolldelay=60 width="100%" border="0">
<table cellspacing=0 cellpadding=0 >
<tr><td height=0px></td></tr>
<?
$dbobj->strsql="select top 12 * from tb_zdtj where disp = 1 order by info_time desc";
$dbobj->exec();
for ($i=1;$i<=12;$i++)
{
if (!$array=$dbobj->getarray()) {break;}
$thisbg="<a class=bt1 href=zdtj/detail.php?code=".$array["code"]." target=_blank title=".$array["title"]." border=0>";
$strTime=" [" . ConvertTime($array["info_time"]) ."]";
$totallen=44;
$str=$array["title"];
if (strlen($array["title"])>$totallen)
{
if(strlen($array["title"])%2=='1')
{$num=$totallen-4;}
else
{$num=$totallen-3;};
$str=wordscut($array["title"],0,$num)."...";
}
else
$num=strlen($array["title"]);
echo "<tr ><td align=left style='padding-left:20px;padding-right:10px'><IMG SRC='images/arrow.gif' BORDER=0 ALT=''></td><td width=300px style=/"font-size:8pt/">".$thisbg."<font style=/"line-height:22px;letter-spacing:0.06em;font-size:9pt/">".$str."</a></font>";

echo "<td width=100px align=center ><font style='font-size:9pt'></font></td></tr>/n";

}
$dbobj->clearresult();
?>
</table>
</marquee></td></tr>
</table>
</td>
</tr>
<tr>
<td style="background-image:url(./images/bg_swzc1.gif);background-repeat:no-repeat;" width=430px height=146px valign=top>
<table cellspacing=0 cellpadding=0 valign=top>
<tr><td colspan=3 valign=middle height=25px style="padding-top:0px;padding-left:365px"><a href="./cqzr/index1.php" border=0 target=_blank ><font color=red style="font-size:10pt;">更多 >>></font></a>
</td></tr>
<tr><td height=0px></td></tr>
<?
$dbobj->strsql = "select jyh,code,title,type,info_time from tb_fcjy where disp = 1";
$dbobj->strsql = $dbobj->strsql." union ";
$dbobj->strsql = $dbobj->strsql."select jyh,code,title,type,info_time from tb_sbjy where disp = 1";
$dbobj->strsql = $dbobj->strsql." union ";
$dbobj->strsql = $dbobj->strsql."select jyh,code,title,type,info_time from tb_cljy where disp = 1";
$dbobj->strsql = $dbobj->strsql." order by info_time desc";
$dbobj->exec();
for ($i=1;$i<=5;$i++)
{
if (!$array=$dbobj->getarray()) {break;}
if(substr($array["type"],0,4)=="房产") $ptype="房产交易";
if(substr($array["type"],0,4)=="设备") $ptype="设备交易";
if(substr($array["type"],0,4)=="车辆") $ptype="车辆交易";
$thisbg="<a class=bt1 href=cqzr/detail.php?code=".$array["code"]."&type=".$ptype." target=_blank title=".$array["title"]." border=0>";
// $strTime=" [" . ConvertTime($array["info_time"]) ."]";
$strType=" [" . $array["jyh"] ."]";
$totallen=44;
$str=$array["title"];
if (strlen($array["title"])>$totallen)
{
if(strlen($array["title"])%2=='1')
{$num=$totallen-4;}
else
{$num=$totallen-3;};
$str=wordscut($array["title"],0,$num)."...";
}
else
$num=strlen($array["title"]);
echo "<tr ><td align=left style='padding-left:20px;padding-right:10px'><IMG SRC='images/arrow.gif' BORDER=0 ALT=''></td><td width=300px style=/"font-size:8pt/">".$thisbg."<font style=/"line-height:22px;letter-spacing:0.06em;font-size:9pt/">".$str."</a></font>";

//echo "<td width=100px align=center ><font style='font-size:9pt'>".$strTime."</font></td></tr>/n";
echo "<td width=100px align=center ><font style='font-size:9pt'>".$strType."</font></td></tr>/n";
}
$dbobj->clearresult();
?>

</table>
</td>
</tr>
<tr>
<td style="background-image:url(./images/bg_kjcg1.gif);background-repeat:no-repeat;" width=430px height=146px valign=top>
<table cellspacing=0 cellpadding=0 valign=top>
<tr><td colspan=3 valign=middle height=25px style="padding-top:0px;padding-left:365px"><a href="./kjcg/index1.php" border=0 target=_blank ><font color=red style="font-size:10pt;">更多 >>></font></a>
</td></tr>
<tr><td height=0px></td></tr>
<?
$dbobj->strsql="select top 5 * from tb_kjcg where disp = 1 order by info_time desc";
$dbobj->exec();
for ($i=1;$i<=5;$i++)
{
if (!$array=$dbobj->getarray()) {break;}
$thisbg="<a class=bt1 href=kjcg/detail.php?code=".$array["code"]." target=_blank title=".$array["title"]." border=0>";
$strType=" [" . $array["bh"] ."]";
$totallen=44;
$str=$array["title"];
if (strlen($array["title"])>$totallen)
{
if(strlen($array["title"])%2=='1')
{$num=$totallen-4;}
else
{$num=$totallen-3;};
$str=wordscut($array["title"],0,$num)."...";
}
else
$num=strlen($array["title"]);
echo "<tr ><td align=left style='padding-left:20px;padding-right:10px'><IMG SRC='images/arrow.gif' BORDER=0 ALT=''></td><td width=300px style=/"font-size:8pt/">".$thisbg."<font style=/"line-height:22px;letter-spacing:0.06em;font-size:9pt/">".$str."</a></font>";

echo "<td width=100px align=center ><font style='font-size:9pt'>".$strType."</font></td></tr>/n";
}
$dbobj->clearresult();
?>

</table>
</td>
</tr>
<tr>
<td style="background-image:url(./images/bg_zljs1.gif);background-repeat:no-repeat;padding-left:2px" width=430px height=146px valign=top>
<table cellspacing=0 cellpadding=0 valign=top>
<tr><td colspan=3 valign=middle height=25px style="padding-top:0px;padding-left:365px"><a href="./zljs/index1.php" border=0 target=_blank ><font color=red style="font-size:10pt;">更多 >>></font></a>
</td></tr>
<tr><td height=0px></td></tr>
<?
$dbobj->strsql="select top 6 * from tb_zljs where disp = 1 order by info_time desc";
$dbobj->exec();
for ($i=1;$i<=6;$i++)
{
if (!$array=$dbobj->getarray()) {break;}
$thisbg="<a class=bt1 href=zljs/detail.php?code=".$array["code"]." target=_blank title=".$array["title"]." border=0>";
$strType=" [" . $array["bh"] ."]";
$totallen=44;
$str=$array["title"];
if (strlen($array["title"])>$totallen)
{
if(strlen($array["title"])%2=='1')
{$num=$totallen-4;}
else
{$num=$totallen-3;};
$str=wordscut($array["title"],0,$num)."...";
}
else
$num=strlen($array["title"]);
echo "<tr ><td align=left style='padding-left:20px;padding-right:10px'><IMG SRC='images/arrow.gif' BORDER=0 ALT=''></td><td width=300px style=/"font-size:8pt/">".$thisbg."<font style=/"line-height:22px;letter-spacing:0.06em;font-size:9pt/">".$str."</a></font>";

echo "<td width=100px align=center ><font style='font-size:9pt'>".$strType."</font></td></tr>/n";
}
$dbobj->clearresult();
?>

</table>
</td>
</tr>
</table>
</td>
<td width=166px height=597px valign=top style="background-image:url(./images/bg_right_botton4.gif);background-repeat:no-repeat;padding-left:0px">
<table width=166px height=597px style="padding-left:15px" height=597px cellspacing=0 cellpadding=0 valign=top border=0px>
<tr><td valign=top height=240px>
<table height=260px cellspacing=0 cellpadding=0 border=0px valign=top >
<tr><td height=5px ></td></tr>
<tr><td style="background-image:url();background-repeat:no-repeat;" height=240px valign=top>
<table cellspacing=0 cellpadding=0 valign=top >
<tr><td height=25px></td></tr>
<?
$dbobj->strsql="select top 11 * from tb_xmxq order by info_time desc";
$dbobj->exec();
for ($i=1;$i<=11;$i++)
{
if (!$array=$dbobj->getarray()) {break;}
$thisbg="<a class=bt1 href=xmxq/detail.php?code=".$array["code"]." target=_blank title=".$array["title"]." border=0>";
$strTime=" [" . ConvertTime($array["info_time"]) ."]";
$totallen=20;
$str=$array["title"];
if (strlen($array["title"])>$totallen)
{
if(strlen($array["title"])%2=='1')
{$num=$totallen-4;}
else
{$num=$totallen-3;};
$str=wordscut($array["title"],0,$num)."...";
}
else
$num=strlen($array["title"]);
echo "<tr ><td width=300px style=/"font-size:8pt/">".$thisbg."<font style=/"color=#00549A;line-height:19px;letter-spacing:0.06em;font-size:9pt/">".$str."</a></font>";

}
$dbobj->clearresult();
?>
<tr><td valign=top height=0px style="padding-top:0px;padding-left:90px"><a href="./xmxq/index.php" border=0 target=_blank ><font color=red style="font-size:10pt;line-height:0px">更多 >>></font></a>
</td></tr>
</table>
</td>
</tr>

</table>
</td></tr>

<tr><td style="background-image:url();background-repeat:no-repeat;" height=140px valign=top>
<table cellspacing=0 cellpadding=0 valign=top >
<tr><td height=34px></td></tr>
<?
$dbobj->strsql="select top 5 * from tb_zllm order by sort";
$dbobj->exec();
for ($i=1;$i<=4;$i++)
{
if (!$array=$dbobj->getarray()) {break;}
$thisbg="<a class=bt1 href=".$array["address"]." target=_blank title=".$array["name"]." border=0>";
$strTime=" [" . ConvertTime($array["info_time"]) ."]";
$totallen=20;
$str=$array["name"];
if (strlen($array["name"])>$totallen)
{
if(strlen($array["name"])%2=='1')
{$num=$totallen-4;}
else
{$num=$totallen-3;};
$str=wordscut($array["name"],0,$num)."...";
}
else
$num=strlen($array["name"]);
echo "<tr ><td width=300px style=/"font-size:8pt/">".$thisbg."<font style=/"color=#00549A;line-height:22px;letter-spacing:0.06em;font-size:9pt/">".$str."</a></font>";

}
$dbobj->clearresult();
?>
<tr><td valign=top height=0px style="padding-top:0px;padding-left:90px"><a href="./xmxq/index1.php?type=战略联盟" border=0 target=_blank ><font color=red style="font-size:10pt;line-height:0px">更多 >>></font></a>

</table>
</td>
</tr>
<tr>
<td style="background-image:url();background-repeat:no-repeat;" height=190px valign=top>
<table cellspacing=0 cellpadding=0 valign=top >
<tr><td height=30px></td></tr>
<?
$dbobj->strsql="select top 7 * from tb_yqlj order by sort";
$dbobj->exec();
for ($i=1;$i<=6;$i++)
{
if (!$array=$dbobj->getarray()) {break;}
$thisbg="<a class=bt1 href=".$array["address"]." target=_blank title=".$array["name"]." border=0>";
$strTime=" [" . ConvertTime($array["info_time"]) ."]";
$totallen=20;
$str=$array["name"];
if (strlen($array["name"])>$totallen)
{
if(strlen($array["name"])%2=='1')
{$num=$totallen-4;}
else
{$num=$totallen-3;};
$str=wordscut($array["name"],0,$num)."...";
}
else
$num=strlen($array["name"]);
echo "<tr ><td width=300px style=/"font-size:8pt/">".$thisbg."<font style=/"color=#00549A;line-height:22px;letter-spacing:0.06em;font-size:9pt/">".$str."</a></font>";

}
$dbobj->clearresult();
?>
<tr><td valign=top height=0px style="padding-top:0px;padding-left:90px"><a href="./xmxq/index1.php?type=友情链接" border=0 target=_blank ><font color=red style="font-size:10pt;line-height:0px">更多 >>></font></a>

</table>
</td>
</tr>
</table >
</td>
</tr>
</table>
</td>
</tr>

</table>
<?include("./manager/foot.php");?>
</td></tr>
</table>
</center>
</body>
</html>

请指教！

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