Package/plugin/module WordPress

Restrict Usernames v3.0

I’d like to announce the official release of the updated Restrict Usernames plugin (v3.0) for WordPress.

Restrict the usernames that new users may use when registering for your site.

Recommended update. Highlights: re-implementation using custom plugin framework; full localization support; misc non-functionality documentation and formatting tweaks; renamed class; verified WP 3.0 compatibility; dropped support for versions of WP older than 2.8.

For more details, instructions, screenshots, and the download link, visit the plugin’s official homepage at :

Comments welcome on this post for this version of the plugin. Comments will be closed once this release has been superseded by another.

Read more for a detailed ChangeLog of the release.

Detailed ChangeLog

These are the detailed changes, which may or may not make sense to you depending on your familiarity with the previous features and internals of the plugin.

  • Re-implementation by extending C2C_Plugin_016, which among other things adds support for:
  • * Reset of options to default values
  • * Better sanitization of input values
  • * Offload of core/basic functionality to generic plugin framework
  • * Additional hooks for various stages/places of plugin operation
  • * Easier localization support
  • Full localization support
  • Fix to display custom error message rather than the incorrect WordPress default validation error message
  • Store plugin instance in global variable, $c2c_restrict_usernames, to allow for external manipulation
  • Rename class from ‘RestrictUsernames’ to ‘c2c_RestrictUsernames’
  • Remove docs from top of plugin file (all that and more are in readme.txt)
  • Note compatibility with WP 2.9+, 3.0+
  • Drop compatibility with versions of WP older than 2.8
  • Add PHPDoc documentation
  • Minor tweaks to code formatting (spacing)
  • Add Upgrade Notice section to readme.txt
  • Remove trailing whitespace
  • Update screenshot
  • Update .pot file

2 replies on “Restrict Usernames v3.0”

hi.. thanx for the plugins, i already download it, but dont have time yet to give it a try, internet are damn slow, anyway thank you very much for the plugins, might use it for later..

This is the right plugins to own, restrict the usernames for own good.. But how to blacklist the email user that not only a spam can do, but human too.. ie:



they keep registered at my site, but i don’t know what’s the idea..
i Wish someday you will be release an email blacklisted in WP registration mode~..

will follow you!!

Hi, I’m attempting to deploy this plugin and have been testing for an hour or so, with a couple of issues to report:

1. partial matching isn’t working at all
2. the error message given in all instances is “Only lowercase letters and numbers allowed”

I’m using this with WP / BP (latest release versions) on WP Single (not network or multi). I’m wondering if these breakages might be due to the recent WP update.

I’m launching in 3 days. If there’s any chance you might be able to have a look at these issues soon, I’d be so grateful. This is one of those final pieces of the jigsaw!

Comments are closed.