unexpected $end 帮忙见见

<br>
<?php <br />
session_start();<br>
if(isset($_GET['id'])){<br>
	$id=$_GET['id'];<br>
}else{<br>
	$id="";<br>
}<br>
?><br>
nbsp;html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br>
<br>
<br>
<meta><br>
<title>查看帖子详细信息</title><br>
<style><br />
<!--<br />
.STYLE2 {color: #CC6633}<br />
.STYLE4 {color: #CC6600}<br />
body,td,th {<br />
	font-size: 12px;<br />
}<br />
.STYLE6 {color: #FF0000}<br />
--><br />
</style><br>
<br>
<br>
<br>
<?php <br />
include("conn/conn.php");<br>
include("index_01.php");<br>
include("index_02.php");<br>
$select=mysql_query("select * from tb_content where id='$id'",$conn);<br>
$array=mysql_fetch_array($select);<br>
$select_user=mysql_query("select * from tb_user where username='".$array['username']."'",$conn);<br>
$array_user=mysql_fetch_array($select_user);<br>
?><br>
<br>
<p><img  alt=" unexpected $end   帮忙见见 " ></p><br>