<?php
// 连接数据库
$conn=@mysql_connect("localhost","root","") or die(mysql_error());
@mysql_select_db('water',$conn) or die(mysql_error());
// 判断action
$action = isset($_REQUEST['action'])? $_REQUEST['action'] : '';
// 上传图片
if($action=='add'){
$image = mysql_escape_string(file_get_contents($_FILES['photo']['tmp_name']));
$type = $_FILES['photo']['type'];
$sqlstr = "insert into photo(type,binarydata) values('".$type."','".$image."')";
@mysql_query($sqlstr) or die(mysql_error());
header('location:upload_image_todb.php');
exit();
// 显示图片
}elseif($action=='show'){
$id = isset($_GET['id'])? intval($_GET['id']) : 0;
$sqlstr = "select * from photo where id=$id";
$query = mysql_query($sqlstr) or die(mysql_error());
$thread = mysql_fetch_assoc($query);
if($thread){
header('content-type:'.$thread['type']);
echo $thread['binarydata'];
exit();
}
}else{
// 显示图片列表及上传表单
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title> upload image to db demo </title>
</head>
<body>
<form name="form1" method="post" action="upload_image_todb.php" enctype="multipart/form-data">
<p>图片：<input type="file" name="photo"></p>
<p><input type="hidden" name="action" value="add"><input type="submit" name="b1" value="提交"></p>
</form>
<?php
$sqlstr = "select * from photo order by id desc";
$query = mysql_query($sqlstr) or die(mysql_error());
$result = array();
while($thread=mysql_fetch_assoc($query)){
$result[] = $thread;
}
foreach($result as $val){
echo '<p><img src="upload_image_todb.php?action=show&id='.$val['id'].'&t='.time().'" width="150"></p>';
}
?>
</body>
</html>
<?php
}
?>
