username_exists filter-hook . WP 4.9.0
Filters whether the given username exists or not.
Usage
add_filter( 'username_exists', 'filter_function_name_1800', 10, 2 );
function filter_function_name_1800( $user_id, $username ){
// filter...
return $user_id;
}
- $user_id(int/false)
- The user's ID on success, and false on failure.
- $username(string)
- Username to check.
Where the hook is called
username_exists
wp-includes/user.php 1415
return apply_filters( 'username_exists', $user_id, $username );