php图片上传代码
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<?php // 连接数据库 $conn[email protected]mysql_connect("localhost","root","") or die(mysql_error()); @mysql_select_db(‘water‘,$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 } ?>
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