title: Download size limit CURLOPT_RANGE not work?
body: <p>I have function to download remote file based on offset and limit.</p>
  
  <pre><code>function get_part_file($url, $offset, $limit){
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_RANGE, ''.$offset.'-'.$limit.'');
  curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  $result = curl_exec($ch);
  curl_close($ch);
  return $result;
  }
  </code></pre>
  
  <p>I wanna download 1024 bytes from end but this function download whole file. So, how can I do that?</p>