图片和二进制之间的转换 图片 二进制 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 估计你前面有echo或其他输出影响了,在echo($data[2]); 前加一句 ob_clean(); 试试。 写了一个完整的例子,可以参考下。数据表结构CREATE TABLE `photo` ( `id` int(10) unsigned NOT NULL auto_increment, `type` varchar(100) NOT NULL, `photo` mediumblob NOT NULL, PRIMARY KEY (`id`)) upload_image_todb.php<?php$conn=@mysql_connect("数据库ip","帐号","密码") or die(mysql_error());@mysql_select_db('数据库名',$conn) or die(mysql_error());$action = isset($_REQUEST['action'])? $_REQUEST['action'] : '';if($action=='add'){ $image = mysql_escape_string(file_get_contents($_FILES['photo']['tmp_name'])); $type = $_FILES['photo']['type']; $sqlstr = "insert into photo(type,photo) values('".$type."','".$image."')"; @mysql_query($sqlstr) or die(mysql_error()); header('location:upload_image_todb.php');}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['photo']; exit(); }}else{?><!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 </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().'"></p>'; }?> </body></html><?php}?> 你这个是 JFIF 格式的图片吧?没有几个浏览器能支持的 上传了jpg和png的图片,效果也还是一样,加载不出 在echo($data[2]); 前加一句 ob_clean(); 试试。這個試過了嗎? 可以把文件二進制的base64_encode後的字符串發出來嗎?echo base64_encode(file_get_contents('xxx.jpg'));我測試下是不是圖片有問題。 php判断字符串是否含有韩文,在线等 菜鸟之每日一问 求lighttpd 配置任意指向的域名都可以访问 高手指点下,mysql语句的疑问?提供具体的思路? 请教一个变量的写法 请问如果往一个图片上面写文字,如何把字体设大一点?? 打开的php的网页,却弹出下载的对话框!为什么?在线等(斑竹999) 用phpmyadmin如何做到不同的用户登录到不同的数据库? 怎样同时删除两个表的信息??? 用PHP怎么做树型目录 CI框架下用存储过程后不能再进行其他查询 php正则替换问题
在echo($data[2]); 前加一句 ob_clean(); 试试。
数据表结构CREATE TABLE `photo` (
`id` int(10) unsigned NOT NULL auto_increment,
`type` varchar(100) NOT NULL,
`photo` mediumblob NOT NULL,
PRIMARY KEY (`id`)
)
upload_image_todb.php<?php
$conn=@mysql_connect("数据库ip","帐号","密码") or die(mysql_error());
@mysql_select_db('数据库名',$conn) or die(mysql_error());$action = isset($_REQUEST['action'])? $_REQUEST['action'] : '';if($action=='add'){
$image = mysql_escape_string(file_get_contents($_FILES['photo']['tmp_name']));
$type = $_FILES['photo']['type'];
$sqlstr = "insert into photo(type,photo) values('".$type."','".$image."')";
@mysql_query($sqlstr) or die(mysql_error()); header('location:upload_image_todb.php');}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['photo'];
exit();
}
}else{
?>
<!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 </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().'"></p>';
}
?> </body>
</html>
<?php
}
?>
没有几个浏览器能支持的
echo base64_encode(file_get_contents('xxx.jpg'));我測試下是不是圖片有問題。