The problem with Twitterapi?

When you query using the twitter-async $twitterObj->get_search(array('q' => '#chain')); user ID(from_user_id) response full of trash. For example, the user from_user_id leshchinsky wrote: 94764048б although, in fact, on request api.twitter.com/1/users/show.json?screen_name=lesh... — id: 111401916. In what could be the problem?