Even after installing the latest code from Peter’s link here, it kept trying to validate again on the second sign up page. I inserted the following code as the first two lines in the function cas_register_post in custom_anti_spam.php and it fixed the problem.

if ($_POST['stage'] == ‘validate-blog-signup’)
return $result;

There is a problem with the MU instructions using the alternate method. Following the instructions, I still get this as path, which is wrong.
wp-content/plugins/mu-plugins/custom_anti_spam.php?antiselect=5

We need to replace all instances of "wp-content/plugins" with "wp-contents/", not just the two lines mentioned in the instructions.

Reply from Peter: Thanks for pointing that out. I have revised the text accordingly

It’s fine for blogs created from the back-end, but not for when people register through the front-end, right? I believe that the problem stems from the fact that a few versions ago, I made the install and uninstall functions in the plugin available only through the back-end of the site (for efficient loading of code). To solve this problem, find this line:

} // Close the back-end check

And move it to be above this line:

// Install the anti-spam word database table upon plugin activation

add_management_page(‘Custom anti-spam’, ‘Custom anti-spam’, 7, ‘custom_anti_spam.php’, ‘cas_manage’);

(See here and here for more information.)

Is there anyway to hide the plugin page from users?

Hello, I’ve been using your plugin for over a year now. I was using version 2.82 because it worked flawlessly for me and it was enough, but after upgrading to wpmu 1.5.1 I started getting errors so I decided to upgrade.

Now I am using version 3.0.4 but I am getting new errors:

[Fri May 23 20:05:42 2008] [error] [client 86.22.72.154] PHP Notice: Undefined variable: cas_displaytext in /xxx/wp-content/mu-plugins/custom_anti_spam.php on line 113, referer: some search engine

[Fri May 23 20:05:42 2008] [error] [client 86.22.72.154] PHP Notice: Trying to get property of non-object in /xxx/wp-content/mu-plugins/custom_anti_spam.php on line 136, referer: some search engine

[Fri May 23 20:05:42 2008] [error] [client 86.22.72.154] PHP Fatal error: Call to a member function get_var() on a non-object in /xxx/wp-content/mu-plugins/custom_anti_spam.php on line 278, referer: some search engine

I did the setup using the alternative method because first I tried with plugin commander but then I noticed that the script was creating 2 extra tables per blog, and at 3000 blogs thats a lot of tables I didnt want, plus all the different word files in /words/.

Anyway, I followed the instructions and the plugin works fine except when I click on Custom Anti Spam link I get the "no words file found, deactivate and activate the plugin again" error. The /words/ folder is writable and is in /plugins/custom-anti-spam, while the rest of the files are at /mu-plugins/, just like your instructions say. I’ve checked the file and I noticed that there are other instances where $wpdb->prefix is used. Since that was removed from part 1), maybe I should remove all instances of it? I dont know my way around php so I dont know if I should.

Any suggestions? Thanks. You can mail me if you’d like.