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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 |
---|---|
580 | * |
581 | * @since 3.0.0 |
582 | * |
583 | * @see wp_update_nav_menu_item() |
584 | * |
585 | * @param int $menu_id ID of the updated menu. |
586 | * @param int $menu_item_db_id ID of the updated menu item. |
587 | * @param array $args An array of arguments used to update a menu item. |
588 | */ |
589 | do_action( 'wp_update_nav_menu_item', $menu_id, $menu_item_db_id, $args ); |
590 |
|
591 | return $menu_item_db_id; |
592 | } |
593 |
|
594 | /** |
595 | * Returns all navigation menu objects. |
596 | * |
597 | * @since 3.0.0 |
598 | * @since 4.1.0 Default value of the 'orderby' argument was changed from 'none' |