请教个从PHPSDKV1加载OSS图像文件并显示的问题

图像我也是用sdk上传到oss的，
所以key,bucket,object 应该是无误的


上传得到的response
|-----------------------Start---------------------------------------------------------------------------------------------------|-Status:200|-Body:|-Header:Array([date] => Wed, 05 Nov 2014 02:54:41 GMT[content-length] => 0[connection] => close[etag] => "3B6CD51234761E443DF4F6E47E08E87F"[server] => AliyunOSS[x-oss-request-id] => 54599171C76B291877298BDF[_info] => Array([url] => [font=Consolas, 'Lucida Console', monospace](新手不能发连接贴)oss.aliyuncs.com/****/post/20141105105441_4841214976.jpg[content_type] =>[http_code] => 200[header_size] => 224[request_size] => 409[filetime] => -1[ssl_verify_result] => 0[redirect_count] => 0[total_time] => 0.281633[namelookup_time] => 0.041011[connect_time] => 0.072625[pretransfer_time] => 0.072653[size_upload] => 49151[size_download] => 0[speed_download] => 0[speed_upload] => 174521[download_content_length] => -1[upload_content_length] => 49151[starttransfer_time] => 0.10801[redirect_time] => 0[method] => PUT)[x-oss-request-url] => [font=Consolas, 'Lucida Console', monospace](新手不能发连接贴)oss.aliyuncs.com/****/post/20141105105441_4841214976.jpg[x-oss-redirects] => 0[x-oss-stringtosign] => PUTimage/jpegWed, 05 Nov 2014 02:54:41 GMT/nectar/post/20141105105441_4841214976.jpg[x-oss-requestheaders] => Array([Content-Type] => image/jpeg[Date] => Wed, 05 Nov 2014 02:54:41 GMT[Host] => oss.aliyuncs.com[Authorization] => OSS 5wcswy7nr0uTIatH:CUzjryZM2i9s5Esm0+Da70cB3NA=))-----------------------End-----------------------------------------------------------------------------------------------------






当我尝试这样
$oss = new ALIOSS();
$imglink = $oss->get_sign_url(OSS_BUCKET,$object);
echo "<img src='{$imglink}'>";


的时候，并不显示图片...查看资源的header 提示 403

1. 
   请求方式:
   GET
2. 
   状态代码:
   
   403 Forbidden
3. 请求 HTTP 报头查看源代码
4. 
   Accept:
   image/webp,*/*;q=0.8
5. 
   Accept-Encoding:
   gzip,deflate
6. 
   Accept-Language:
   zh-CN
7. 
   Cache-Control:
   no-cache
8. 
   Connection:
   keep-alive
9. 
   DNT:
   1
10. 
    Host:
    oss.aliyuncs.com
11. 
    Pragma:
    no-cache
12. 
    Referer:[]
    *(新手不能发连接贴)***********/testossupload.php
13. 
    User-Agent:
    Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Maxthon/4.4.0.3000 Chrome/30.0.1599.101 Safari/537.36

Query String 参数 查看源代码 查看编码后的 URL

1. 
   OSSAccessKeyId:
   5wcswy7nr0uTIatH
2. 
   Expires:
   1415153937
3. 
   Signature:
   ltM3tOVjZUKOCIN+xBFXvowIJlI=

响应 HTTP 报头 查看源代码

1. 
   Connection:
   close
2. 
   Content-Length:
   238
3. 
   Content-Type:
   application/xml
4. 
   Date:
   Wed, 05 Nov 2014 02:17:57 GMT
5. 
   Server:
   AliyunOSS
6. 
   x-oss-request-id:
   545988D5E46892530E25FDDF

我尝试把$imglink直接输入在浏览器的地址栏，提示下载文件..,下载的文件保存下来是我要显示的文件没错，但..为什么会是下载，不是直接显示呢？
是和Content-Disposition: attachment有关吗？我尝试在 get_sign_url() 加入$option参数来指定



$option = array(
        ALIOSS::OSS_CONTENT_TYPE => 'image/jpeg',
                ALIOSS::OSS_CONTENT_DISPOSTION => ''
    );
但也没有效果，而且根据API手册，这个在不指定的时候默认值应该也是空的才对吧
------------------------------------------------------------------
后来也尝试单独写一个脚本img.php读取oss 改用



include("sdk.class.php");
$oss = new ALIOSS();
$res =  $oss->get_object(OSS_BUCKET,$object);
$data = $res->body;
//header("Content-type: image/jpeg");
//header("Content-Length: ".strlen($data));
echo $data;
结果浏览器直接显示了jpg的源码晕死了
加上headr()声明头 content-type之后报错
Warning [font='']: Cannot modify header information - headers already sent by (output started at /mnt/array1/wwwroot/htdocs/..../oss/sdk.class.php:1) in /mnt/array1/wwwroot/htdocs/..../oss/img.php [font=''] on line 18


是我调用的方法不对？上传的时候传少了参数？还是$option没有定义对？还是什么原因/