Скрипт передачи файлов методом POST предоставлен Арсеньевым Алексеем (больше известным на нашем форуме как JIEXA).

                        
function sendFile($host, $port="80", $path, $filePath, $fileName, $fileField, $fields = array())

{

  define("CRLF", "rn");

  define("DCRLF", CRLF.CRLF);



  $boundary = "---------------------".substr(md5(rand(0,32000)),0,10);



  $fieldsData = "";



  if(count($fields) > "0"):

  foreach($fields as $field => $value)

  {

    $fieldsData .=  "--".$boundary.CRLF;

    $fieldsData .=  "Content-Disposition: form-data; name="".$field.""".DCRLF;

    $fieldsData .=  urlencode($value).CRLF;

  }

  endif;



  $fileHeaders = "--".$boundary.CRLF;

  $fileHeaders .= "Content-Disposition: form-data; name="".$fileField.""; filename="".$fileName.""".CRLF;

  $fileHeaders .= "Content-Type: ".mime_content_type($filePath).DCRLF;

  $fileHeadersTail = CRLF."--".$boundary."--".CRLF;



  $filesize = filesize($filePath);

  $contentLength = strlen($fieldsData) + strlen($fileHeaders) + $filesize + strlen($fileHeadersTail);



  $headers  = "POST $path HTTP/1.0".CRLF;

  $headers .= "Host: ".$host.CRLF;

  $headers .= "Referer: ".$host.CRLF;

  $headers .= "Content-type: multipart/form-data, boundary=".$boundary.CRLF;

  $headers .= "Content-length: ".$contentLength.DCRLF;

  $headers .= $fieldsData;

  $headers .= $fileHeaders;



  if(!$fp = fsockopen($host, $port)) return false;

  fputs($fp, $headers);



  $fp2 = fopen($filePath, "rb");



  while(!feof($fp2)) fputs($fp, fgets($fp2, 1024*100));



  fclose($fp2);



  fputs($fp, $fileHeadersTail);



  $serverResponse = "";

  while(!feof($fp)) $serverResponse .= fgets($fp, 4096);

  fclose($fp);



  return $serverResponse;

}