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apply_filters( 'nav_menu_item_id', string $menu_id, WP_Post $item, stdClass $args, int $depth )

Filters the ID applied to a menu item’s list item element.

$menu_id: (string) The ID that is applied to the menu item's <li> element.
$item: (WP_Post) The current menu item.
$args: (stdClass) An object of wp_nav_menu() arguments.
$depth: (int) Depth of menu item. Used for padding.

Used By	Description
wp-includes/class-walker-nav-menu.php: Walker_Nav_Menu::start_el()	Starts the element output.

Version	Description
4.1.0	The `$depth` parameter was added.
3.0.1	Introduced.

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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/hooks/nav_menu_item_id