trimParams() public static method

public static trimParams ( $params )
 /**
  * Rewrite Qiniu\Storage\UploadManager::putFile
  * @param $upToken
  * @param $key
  * @param $fileResource
  * @param null $params
  * @param string $mime
  * @param bool $checkCrc
  * @return mixed
  * @throws \Exception
  */
 private function qiniuPutFile($upToken, $key, $fileResource, $params = null, $mime = 'application/octet-stream', $checkCrc = false)
 {
     if ($fileResource === false) {
         throw new \Exception("file can not open", 1);
     }
     $file = $fileResource;
     $params = UploadManager::trimParams($params);
     $stat = fstat($file);
     $size = $stat['size'];
     if ($size <= QiniuConfig::BLOCK_SIZE) {
         $data = fread($file, $size);
         fclose($file);
         if ($data === false) {
             throw new \Exception("file can not read", 1);
         }
         $result = FormUploader::put($upToken, $key, $data, new QiniuConfig(), $params, $mime, $checkCrc);
         $this->lastQetag = $result['hash'];
         return $result;
     }
     $up = new ResumeUploader($upToken, $key, $file, $size, $params, $mime, new QiniuConfig());
     $ret = $up->upload();
     fclose($file);
     $this->lastQetag = $ret['hash'];
     return $ret;
 }