php 从数据库提取二进制图片的处理代码

image.php文件

<?php 
$conn=@mysql_connect("localhost","root","123") or die("服务器连接错误!"); //链接数据库 
@mysql_select_db("upload",$conn) or die("未发现数据库!"); 
$query="select * from upfile where ftag=$fn"; 
$result=mysql_query($query); 
if(!$result) die("error: mysql query"); 
$num=mysql_num_rows($result); 
if($num<1) die("error: no this recorder"); 
$data = mysql_result($result,0,"picture"); 
header("Content-type: image/JPEG",true); 
echo $data; 
?>

上面是图片提取
前台显示文件

<img src="image.php?fn=<?php echo $fn;?>">