PHP cURL file upload append infomation to the file - php

Question

I upload file to the remote server. The code:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, ZDURL.$url);
curl_setopt($ch, CURLOPT_USERPWD, ZDUSER."/token:".ZDAPIKEY);
$params = array('file_name' => '#'.$temp_file);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: text/plain"));
curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLINFO_HEADER_OUT, 0);
curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, 0);
$result = curl_exec($ch);
$error = curl_error($ch);
curl_close($ch);
But in the top of uploaded file appears information:
------------------------------cfbe90a606af
Content-Disposition: form-data; name="file_name"; filename="C:\Program Files\xampp\tmp\phpF576.tmp"
Content-Type: application/octet-stream
images have wrong format owing to this addition text

Answer 1

It sounds like the URL you are sending data to is expecting just a file in the request body, rather than a form submission. The best way to achieve this is with CURLOPT_INFILE. Try this code:
Try this
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, ZDURL.$url);
curl_setopt($ch, CURLOPT_USERPWD, ZDUSER."/token:".ZDAPIKEY);
// You need to detect the correct content type for the file you are sending.
// Although based on the current problem you have, it looks like the server
// ignores this anyway
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: image/jpeg"));
// Send the raw file in the body with no other data
$fp = fopen($temp_file, 'r');
curl_setopt($ch, CURLOPT_INFILE, $fp);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLINFO_HEADER_OUT, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
$result = curl_exec($ch);
$error = curl_error($ch);
curl_close($ch);
fclose($fp);