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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 |
|---|---|
| 393 | |
| 394 | /** |
| 395 | * Fires after a navigation menu has been successfully updated. |
| 396 | * |
| 397 | * @since 3.0.0 |
| 398 | * |
| 399 | * @param int $menu_id ID of the updated menu. |
| 400 | * @param array $menu_data An array of menu data. |
| 401 | */ |
| 402 | do_action( 'wp_update_nav_menu', $menu_id, $menu_data ); |
| 403 | return $menu_id; |
| 404 | } |
| 405 | |
| 406 | /** |
| 407 | * Saves the properties of a menu item or create a new one. |
| 408 | * |
| 409 | * The menu-item-title, menu-item-description and menu-item-attr-title are expected |
| 410 | * to be pre-slashed since they are passed directly to APIs that expect slashed data. |
| 411 | * |