This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness.

_nav_menu_item_id_use_once( string $id, object $item )

Prevents a menu item ID from being used more than once.

Parameters

$id: (Required)
$item: (Required)

Return

(string)

Source

File: wp-includes/nav-menu-template.php

function _nav_menu_item_id_use_once( $id, $item ) {
	static $_used_ids = array();
	if ( in_array( $item->ID, $_used_ids ) ) {
		return '';
	}
	$_used_ids[] = $item->ID;
	return $id;
}

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Changelog

Changelog
Version	Description
3.0.1	Introduced.