[Plugin: Limit Blogs Per User] its not working for multisite

I have so problem.
After install plugin works fine, but some times later it’s breaks
Maybe after update WP to 3.0.4

This works for me:

1. Go to the functions.php file from your BuddyPress theme.
2. Add this at the top of the php:
<? ob_start(); ?>
<i>So you’ll not get any white screens.</i>
3. Then add this at the bottom of the php:

<?php
function ds_one_blog_only($active_signup) {
// get the array of the current user's blogs
	$blogs = get_blogs_of_user( get_current_user_id() );
// all users may be members of blog 1 so remove it from the count, could be a "Dashboard" blog as well
	if ($blogs["1"]) unset($blogs["1"]);
//if the user still has blogs, disable signup else continue with existing active_signup rules at SiteAdmin->Options
	$n = count($blogs);
	if($n == 1) {
		$active_signup = 'none';
		echo '';
	} elseif($n > 1) {
		$active_signup = 'none';
		echo '';
	} else {
		$active_signup = $active_signup;
	}
	return	$active_signup; // return "all", "none", "blog" or "user"
}
add_filter('wpmu_active_signup', 'ds_one_blog_only');
?>

<i>This will remove the ‘Create a blog’ button when a user already has a blog.</i>

Cheers!

J.

Thank you Jaap, but it’s only work for limit one blog per user. How if we want to limie 2 or more blogs per user?

Works but….

In the Blogs Admin panel – if you select ‘create site’ it goeas off to a 404 page. While this is limiting the user to 1 site, it is not good UI design.