update_user_caches() │ WP 3.0.0

Updates all user caches.

No Hooks.

Returns

null|false. Void on success, false on failure.

Usage

update_user_caches( $user );
$user(object|WP_User) (required)
User object or database row to be cached.

Changelog

Since 3.0.0 Introduced.

update_user_caches() code WP 7.0

wp-includes/user.php 
function update_user_caches( $user ) {
	if ( $user instanceof WP_User ) {
		if ( ! $user->exists() ) {
			return false;
		}

		$user = $user->data;
	}

	wp_cache_add( $user->ID, $user, 'users' );
	wp_cache_add( $user->user_login, $user->ID, 'userlogins' );
	wp_cache_add( $user->user_nicename, $user->ID, 'userslugs' );

	if ( ! empty( $user->user_email ) ) {
		wp_cache_add( $user->user_email, $user->ID, 'useremail' );
	}
}