CURL和php pdf文件从一台服务器传输到另一台服务器

Question

I am trying to build a pdf file in server B and trying to transfer back the built pdf file in server A.

This is the code I have in server A

  $tuCurl = curl_init();
  curl_setopt($tuCurl, CURLOPT_URL, "http://www.server_B/test.php");
  curl_setopt($tuCurl, CURLOPT_POST, 1);
  curl_setopt($tuCurl, CURLOPT_POSTFIELDS, $package);
  curl_setopt($tuCurl, CURLOPT_BINARYTRANSFER, 1);
  curl_setopt($tuCurl, CURLOPT_RETURNTRANSFER, TRUE);
  $result=  curl_exec($tuCurl);
  curl_close($tuCurl);

I have all the necessary code to build a pdf file in server B(The header is at server B

 header('Cache-Control: public');
 header('Content-type: application/pdf');
 header('Content-Disposition: attachment; filename='. $filename);
 header('Content-Length: '.strlen($result));
 echo $result;

). The only problem I have now is to download it back at server A.

Any ideas how we can accomplish that without having to print the header at server A?

Answer 1

Remove the headers before echoing it.

Search for the first occurance of \\n\\n and remove everything before that including the double line break.

or try adding this to A:

curl_setopt($tuCurl, CURLOPT_HEADER, 0);