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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 2025 | |
| 2026 | /** |
| 2027 | * Fires immediately after the given user's cache is cleaned. |
| 2028 | * |
| 2029 | * @since 4.4.0 |
| 2030 | * |
| 2031 | * @param int $user_id User ID. |
| 2032 | * @param WP_User $user User object. |
| 2033 | */ |
| 2034 | do_action( 'clean_user_cache', $user->ID, $user ); |
| 2035 | } |
| 2036 | |
| 2037 | /** |
| 2038 | * Determines whether the given username exists. |
| 2039 | * |
| 2040 | * For more information on this and similar theme functions, check out |
| 2041 | * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ |
| 2042 | * Conditional Tags} article in the Theme Developer Handbook. |
| 2043 | * |