Here is a sample phpcbf output:
use GuzzleHttp\Client; -use function GuzzleHttp\default_user_agent; use Psr\Log\LoggerAwareInterface; use Psr\Log\LoggerAwareTrait; use Psr\Log\NullLogger; use UtfNormal\Validator; use Wikimate; +use function GuzzleHttp\default_user_agent;
I don't think this makes sense. use clauses for the same component should be grouped together whether they are about classes or fuctions.
(Or maybe functions should be in another, newline-separated section, but than that's what the fix should do.)