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Details about pre_user_nicename

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Filename Hook Type Line Number PHP Doc
wp-includes/user.php apply_filters 2147 /**
* Filters a user's nicename before the user is created or updated.
* @since 2.0.3
* @param string $user_nicename The user's nicename.

Hook Parameters

Parameter Type Name Description
string $user_nicename The user's nicename.