Source Reference:

• Component: bbPress :: bbp-user

  File: /bbp-includes/bbp-user-functions.php :: Trac Source Line: 216

  	if ( !$user_id = bbp_get_user_id( $user_id ) )
  		return false;
  
  	// If user has favorites, load them
  	if ( $favorites = bbp_get_user_favorites_topic_ids( $user_id ) ) {
  
  		// Setup the topics query
  		$topics_query = bbp_has_topics( array( 'post__in' => $favorites ) );
  
  		return apply_filters( 'bbp_get_user_favorites', $topics_query, $user_id );
  	}
  
  	return false;
  }
  
  	/**
  	 * Get a user's favorite topics' ids
  	 *
  	 * @since bbPress (r2652)
  	 *