user_(field) filter-hook . WP 2.9.0

Filters the value of a user field in a standard 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.

Usage

add_filter( 'user_(field)', 'filter_function_name_4759', 10, 3 );
function filter_function_name_4759( $value, $user_id, $context ){
	// filter...

	return $value;
}

$value(mixed): The user object value to sanitize.
$user_id(int): User ID.
$context(string): The context to filter within.

Changelog

Since 2.9.0

Introduced.

Where the hook is called

sanitize_user_field()

(field)

user_(field)

wp-includes/user.php 1517

$value = apply_filters( "user_{$field}", $value, $user_id, $context );

Where in WP core the hook is used WordPress

wp-includes/user.php 94

add_action( 'user_register', array( 'WP_Internal_Pointers', 'dismiss_pointers_for_new_users' ) );

wp-includes/user.php 14

add_action( 'user_admin_notices', 'new_user_email_admin_notice' );

wp-includes/user.php 373

add_action( 'user_request_action_confirmed', '_wp_privacy_account_request_confirmed' );

wp-includes/user.php 374

add_action( 'user_request_action_confirmed', '_wp_privacy_send_request_confirmation_notification', 12 ); // After request marked as completed.

wp-includes/user.php 607

add_filter( 'user_has_cap', 'wp_maybe_grant_install_languages_cap', 1 );

wp-includes/user.php 608

add_filter( 'user_has_cap', 'wp_maybe_grant_resume_extensions_caps', 1 );

wp-includes/user.php 609

add_filter( 'user_has_cap', 'wp_maybe_grant_site_health_caps', 1, 4 );