Title: Plugin does not work for me
Last modified: August 28, 2017

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# Plugin does not work for me

 *  [lukasbieri](https://wordpress.org/support/users/lukasbieri/)
 * (@lukasbieri)
 * [8 years, 9 months ago](https://wordpress.org/support/topic/plugin-does-not-work-for-me-5/)
 * Hello! Before I begin, I would like to thank you for spending your time to develop
   this neat plugin 🙂
 * I’ve installed this plugin and modified it so that it accepts the German “Umlaute”(
   äöü):
 * preg_replace (‘|[^a-z\p{Arabic}\p{Cyrillic}0-9 _.\-@äöüÄÖÜß]|iu’, ”, $username);
 * Unfortunately, it does not seem to work at all. Whenever I try to register on
   the following domain:
 * [http://ferienspass.dreigestalten.ch/kursverwaltung/?action=register](http://ferienspass.dreigestalten.ch/kursverwaltung/?action=register)
 * I still get an error message stating that my username contains characters that
   are not allowed.
 * It would be very much appreciated if you could look into this, as the acceptance
   of “Umlaute” in usernames is critical to the functionality of my site.
 * Thank you very much in advance! 🙂
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fplugin-does-not-work-for-me-5%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

The topic ‘Plugin does not work for me’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/wordpress-special-characters-in-usernames_5f2a23.
   svg)
 * [Wordpress Special Characters in Usernames](https://wordpress.org/plugins/wordpress-special-characters-in-usernames/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wordpress-special-characters-in-usernames/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wordpress-special-characters-in-usernames/)
 * [Active Topics](https://wordpress.org/support/plugin/wordpress-special-characters-in-usernames/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wordpress-special-characters-in-usernames/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wordpress-special-characters-in-usernames/reviews/)

## Tags

 * [create new user](https://wordpress.org/support/topic-tag/create-new-user/)
 * [german](https://wordpress.org/support/topic-tag/german/)
 * [umlaute](https://wordpress.org/support/topic-tag/umlaute/)

 * 0 replies
 * 1 participant
 * Last reply from: [lukasbieri](https://wordpress.org/support/users/lukasbieri/)
 * Last activity: [8 years, 9 months ago](https://wordpress.org/support/topic/plugin-does-not-work-for-me-5/)
 * Status: not resolved