CODE EXAMPLE FOR PHP

laravel tree category

 public function autocomplete(array $tree, $parent_id = 0, $parent_name = null)
    {
        $result = [];
        foreach ($tree as $item) {
            if (!empty($parent_name)) {
                $name = $parent_name . ' > ' . AdminService::trans($item['title']);
            } else {
                $name = AdminService::trans($item['title']);
            }
            $result[] = [
                'id' => $item['id'],
                'title' => $name,
            ];
            if (count($item['children']) > 0) {
                $result = array_merge($result, $this->autocomplete($item['children'], $parent_id, $name));
            }
        }
        return $result;
    }