Manual:checkUsernames.php

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Details[edit]

checkUsernames.php file is a maintenance script that is used to check that all usernames in the database (user table) are actually valid. Existing usernames can become invalid if User::isValidUserName() is altered or if $wgMaxNameChars is changed.

Usage[edit]

php checkUsernames.php

In case invalid usernames are found, the script returns the user_id and the username for each of the affected users.