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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 |
|---|---|
| 2398 | * is not forced. |
| 2399 | * @type string $show_admin_bar_front Whether to show the admin bar on the front end for the user. |
| 2400 | * Default 'true'. |
| 2401 | * @type string $locale User's locale. Default empty. |
| 2402 | * } |
| 2403 | * @param WP_User $user User object. |
| 2404 | * @param bool $update Whether the user is being updated rather than created. |
| 2405 | * @param array $userdata The raw array of data passed to wp_insert_user(). |
| 2406 | */ |
| 2407 | $meta = apply_filters( 'insert_user_meta', $meta, $user, $update, $userdata ); |
| 2408 | |
| 2409 | $custom_meta = array(); |
| 2410 | if ( array_key_exists( 'meta_input', $userdata ) && is_array( $userdata['meta_input'] ) && ! empty( $userdata['meta_input'] ) ) { |
| 2411 | $custom_meta = $userdata['meta_input']; |
| 2412 | } |
| 2413 | |
| 2414 | /** |
| 2415 | * Filters a user's custom meta values and keys immediately after the user is created or updated |
| 2416 | * and before any user meta is inserted or updated. |