Login-Redirect

function rt_login_redirect($redirect_to, $set_for, $user){

    global $current_user, $wpdb;
    $firstname = get_usermeta($user -> ID, 'first_name',single);
    $member_genre = get_usermeta($user -> ID, 'genre',true);
    $pb = get_usermeta($user -> ID, 'primary_blog');
    if (!empty ($firstname)) {
    update_user_meta( $user_id, 'pblog', $pb);
    xprofile_set_field_data( 'myplace', $user -> ID, $member_genre);
    xprofile_set_field_data( 'pblog', $user -> ID, $pb);
    $redirect_to = $member_genre."members/".$user -> user_login.'/groups/';
}else{
    xprofile_set_field_data( 'myplace', $user -> ID, $member_genre);
    xprofile_set_field_data( 'pblog', $user -> ID, $pb);
    $redirect_to = $member_genre."members/".$user -> user_login.'/profile/change-avatar/';
}

    wp_redirect( $redirect_to );
    exit();

}
add_action('login_redirect', 'rt_login_redirect', 20, 3);