分页不适用于 Codeigniter 3

Pagination not working on Codeigniter 3

我使用的是 CI3,但是第二页的分页不工作。那是我错过了什么吗?这是我来自控制器的代码:

public function tags($task = "list")
{
    $header['title'] = 'Tag List';
    $this->load->view("template/header", $header);
    $this->load->view("template/dashboardNavView");

    $builder ['task'] = $task;

    if($task == "list" || $task == "")
    {

        $pager['base_url'] = "/dashboard/tags/";
        $pager['total_rows'] = $this->db->count_all('tags');
        $pager['per_page'] = 4;
        $pager["uri_segment"] = 3;
        $this->pagination->initialize($pager);

        $page = $this->uri->segment(3);

        $builder['tags'] = $this->db->order_by('id', 'DESC')->limit($pager['per_page'], $page)->get('tags')->result();
        $builder['pager'] = $this->pagination->create_links();

    }

    $this->load->view("tags/TagsBuilderView", $builder);
    $this->load->view("template/footer");
} 

一切似乎都很好,但是当我点击第二个 link 然后返回空视图。

解决方案是将所有内容都发送到控制器中的新方法"list_tags()"。