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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 |
|---|---|
| 748 | /** |
| 749 | * Filters the navigation menu items being returned. |
| 750 | * |
| 751 | * @since 3.0.0 |
| 752 | * |
| 753 | * @param array $items An array of menu item post objects. |
| 754 | * @param object $menu The menu object. |
| 755 | * @param array $args An array of arguments used to retrieve menu item objects. |
| 756 | */ |
| 757 | return apply_filters( 'wp_get_nav_menu_items', $items, $menu, $args ); |
| 758 | } |
| 759 | |
| 760 | /** |
| 761 | * Updates post and term caches for all linked objects for a list of menu items. |
| 762 | * |
| 763 | * @since 6.1.0 |
| 764 | * |
| 765 | * @param WP_Post[] $menu_items Array of menu item post objects. |
| 766 | */ |