cURL image upload using multipart/form-data -


i have been 1 month dealing following code post image using curl remote server.

    function post_file($url)     {      $file_url = "6.jpg";      $eol = "\r\n";        $boundary = '111151173914518';     $body=""; //init curl body     $body.= '-----------------------------'.$boundary. $eol;      $body .= 'content-disposition: form-data; name="input1"' . $eol . $eol;     $body .= "left" . $eol;     $body.= '-----------------------------'.$boundary. $eol;     $body.= 'content-disposition: form-data; name="input2"' . $eol . $eol ;      $body .= "right" . $eol;     $body.= '-----------------------------'.$boundary. $eol;      $body.= 'content-disposition: form-data; name="input3"' . $eol . $eol ;     $body .= "up" . $eol;     $body.= '-----------------------------'.$boundary. $eol;      $body.= 'content-disposition: form-data; name="input4"' . $eol . $eol ;     $body .= "down" . $eol;     $body.= '-----------------------------'.$boundary. $eol;      $body.= 'content-disposition: form-data; name="input5"' . $eol . $eol ;     $body .= "center" . $eol;     $body.= '-----------------------------'.$boundary. $eol;      $body.= 'content-disposition: form-data; name="input6"' . $eol . $eol ;     $body .= "middle" . $eol;     $body.= '-----------------------------'.$boundary. $eol;      $body.= 'content-disposition: form-data; name="files[]"; filename="6.jpg"' . $eol;      $body.= 'content-type: application/octet-stream'. $eol; /     $body.= 'content-transfer-encoding: multipart/form-data' . $eol . $eol;       $body.= file_get_contents($file_url) . $eol;      $body.= '-----------------------------'.$boundary .'--' . $eol. $eol;         $post_file = curl_init(); //init curl           curl_setopt($post_file, curlopt_httpheader, array("content-type:    multipart/form-data;boundary=---------------------------".$boundary)  );                      curl_setopt($post_file, curlopt_cookiejar, "cookie.txt");     curl_setopt($post_file, curlopt_cookiefile, "cookie.txt");     curl_setopt($post_file, curlopt_timeout, 40000);     curl_setopt($post_file, curlopt_returntransfer, true);     curl_setopt($post_file, curlopt_url, $url);     curl_setopt($post_file, curlopt_useragent, $_server['http_user_agent']);     curl_setopt($post_file, curlopt_followlocation, true);     curl_setopt($post_file, curlopt_post, true);     curl_setopt($post_file, curlopt_postfields, $body);}

it has been no issue input1 input6, there no image has been uploaded.

but when upload using curl, following result:

request headers:  post /server.php http/1.1 host: myserver.com accept: */* content-type: multipart/form-data;boundary=-------------------------- -111151173914518 content-length: 42987 expect: 100-continue  response:  http/1.1 100 continue  http/1.1 200 ok content-type: text/html; charset=utf-8 server: microsoft-iis/8.5 x-powered-by: php/5.6.10 x-powered-by: asp.net date: mon, 31 aug 2015 07:12:02 gmt content-length: 171  array (   'input1' => 'left',   'input2' => 'right',   'input3' => 'up',   'input4' => 'down',   'input5' => 'center',   'input6' => 'middle', )

all inputs there except image have tried change content type application/octet-stream image/jpeg , content transfer encoding multipart/form-data binary , base64 not working.


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