哪位高手帮我解答一下,万分感谢!
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link type="text/css" rel="stylesheet" href="css/inc.css" />
<title></title>
</head>
<body>
<table align="center" border="1" bordercolor="#FF0000" cellspacing="0">
<tr>
<td>
<table width="580px">
<tr>
<td><img src="pic/banner.jpg" /></td>
</tr>
<tr>
<td align="center">
<form action="" method="post"><input class="one" type="text"
name="text" value="输入商品名称" size="15" onfocus="this.value=''" /> <input
class="two" type="submit" name="sub"
value=" " /></form>
</td>
</tr>
<tr>
<td>
<table width="580px" bgcolor="#BDECFE">
<?php
$conn = mssql_connect ( "localhost", "sa", "sa" ) or die ( "Connect SQL Server False" );
mssql_select_db ( "db_database10", $conn ) or die ( "Connect Database False" );
if ($_POST [sub]) {
if ($_POST [text] == "" || $_POST [text] == "输入商品ID") {
echo "<script>alert('请输入查询关键字');</script>";
} else {
$rs = mssql_query ( "select * from tb_demo04 where id=" . $_POST [text] );
//$rs = mssql_query ( "select * from tb_demo04 where id= '.$_POST [text].'" );
?>
<tr>
<td align="center">商品ID</td>
<td align="center">商品名称</td>
<td align="center">商品价格</td>
<td align="center">商品类型</td>
</tr>
<?php
$rst = mssql_fetch_row ( $rs );
?>
<tr>
<td align="center" bgcolor="#FFFFFF"><?php
echo $rst [0];
?></td>
<td bgcolor="#FFFFFF" align="center"><font size="+1"
color="#FF0000"><b><?php
echo iconv ( 'gbk', 'utf-8', $rst [1] );
?></b></font></td>
<td bgcolor="#FFFFFF" align="center"><?php
echo iconv ( 'gbk', 'utf-8', $rst [2] );
?></td>
<td bgcolor="#FFFFFF" align="center"><?php
echo iconv('gbk','utf-8',$rst[3]);?></td>
</tr>
<?php
}
}
?>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</body>
</html>
以上代码无法查字符串啊,"输入商品名称"无法查到,有哪位好心人帮忙解答一下吗