wp-includes/user.php:2035Cleans all user caches.
$userWP_User|intOne hook fires while clean_user_cache() runs, in this order:
Fires immediately after the given user's cache is cleaned.
function clean_user_cache( $user ) { if ( is_numeric( $user ) ) { $user = new WP_User( $user ); } if ( ! $user->exists() ) { return; } wp_cache_delete( $user->ID, 'users' ); wp_cache_delete( $user->user_login, 'userlogins' ); wp_cache_delete( $user->user_nicename, 'userslugs' ); if ( ! empty( $user->user_email ) ) { wp_cache_delete( $user->user_email, 'useremail' ); } wp_cache_delete( $user->ID, 'user_meta' ); wp_cache_set_users_last_changed(); /** * Fires immediately after the given user's cache is cleaned. * * @since 4.4.0 * * @param int $user_id User ID. * @param WP_User $user User object. */ do_action( 'clean_user_cache', $user->ID, $user );}Introduced in 3.0.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/user.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.