在之前插入curl_exec（）：

curl_setopt($ch,CURLOPT_HEADER,true);

而不只是 echo '结果，也将标题转发给客户端：

Instead of just echo'ing the result, forward the headers to the client as well:

list($headers,$content) = explode("\r\n\r\n",$result,2);
foreach (explode("\r\n",$headers) as $hdr)
    header($hdr);
echo $content;