|wp-includes/user.php: sanitize_user_field()|| |
Sanitize user field based on context.
Filters a user field value in the ‘edit’ context.
The dynamic portion of the hook name,
$field, refers to the prefixed user field being filtered, such as ‘user_login’, ‘user_email’, ‘first_name’, etc.
(mixed) Value of the prefixed user field.
(int) User ID.
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