bbp_get_user_forum_subscriptions( int $user_id )

function bbp_get_user_forum_subscriptions( $user_id = 0 ) {

	// Default to the displayed user
	$user_id = bbp_get_user_id( $user_id );
	if ( empty( $user_id ) ) {
		return false;
	}

	// If user has subscriptions, load them
	$subscriptions = bbp_get_user_subscribed_forum_ids( $user_id );
	if ( !empty( $subscriptions ) ) {
		$query = bbp_has_forums( array( 'post__in' => $subscriptions ) );
	} else {
		$query = false;
	}

	return apply_filters( 'bbp_get_user_forum_subscriptions', $query, $user_id );
}