php - 从数据库中检索一条记录

Question

只是尝试显示数据库中的一条记录...但是收到错误(获取数组时)

$con=mysql_connect("localhost","root","");
mysql_select_db("school");
$iid=$_REQUEST['id2'];   //mysql_fetch_array(): supplied argument is not a valid

$d=mysql_query("select * from notification where noticeid=$iid");
$data=mysql_fetch_array( $d ); 

这是我的显示标准...

<tr> 
<td class=""><?php echo $data['noticeid'] ?></td>  
<td class=""><?php echo $data['notificationtitle'] ?></td>  
<td class=""><?php echo $data['notificationbody'] ?></td>  
</tr>

Answer 1

尝试以下方法:noticeid ='“。$ iid。” '

$d=mysql_query("select * from notification where noticeid='".$iid."' ");
$data=mysql_fetch_array( $d );