How can I handle request data from the `$_POST` data itself. I mean if I try to handle the form like this: `$form->handleRequest($request);`, Symfony would try to get the data from `$_POST['form_classname']`, but I want to fill my form class straight from base `$_POST` variables.

Actually I want to handle the information from the outer site. And I have to develop something like an API. But without authorization, tokens, etc...

So I decided to build the form with some properties I need. After validation the form might do some logic.

Here is an example of `$_POST` I have to handle

```none
Function=TransResponse&RESULT=0&RC=00&AUTHCODE=745113

```

As you can see, there is no form name in request. The `$form->handleRequest($request);` works only if the request was like an

```
[form_name][Function]=TransResponse&[form_name][RESULT]=0&[form_name][RC]=00&[form_name][AUTHCODE]=745113

```

But I can't change the request format.