Regular Expression for Validation of Usernames


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Enforce username policies using a regular expression.


  • You must have WoltLab Suite™ Core 3.1, 5.2 or 5.3 installed.


You can specify the regular expression in the ACP under Configuration ⇒ Users ⇒ Registration ⇒ Filter. Usernames are validated during registration, in the settings when changing the username, and when creating and editing users in the ACP.

Published Versions

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