Selecting only Non-file Parameters from Laravel Request

For one of my Laravel Web app I want to log all the Request Parameters(Post as well as Get) in database in Json Format for that I am using $request->all() Method, which results in an exception when user tries to upload any file.

that's why I want a way to select only Serializable Parameters from the request.(for get as well as for post Requests) or a way to select all the request parameters except files.

Request::except([]) will not work for me since in Except method we will have to provide the file parameter names.

via Chebli Mohamed