每页记录数允许用户选择 - codeigniter 分页

我有有效的分页功能。我已将限制设置为每页 5 条记录，但我希望用户能够根据需要进行更改。问题是我不知道该怎么做。

在视图中，我创建了下拉菜单，因此用户可以选择他想要每页查看多少条记录：

 <ul class="dropdown-menu">
    <li>
        <a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers" id="2" class="pPage" data-tableid="smpl_tbl">
        2 records per page
        </a>
    </li>
    <li>
        <a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers"  id ="50" class="pPage" data-tableid="smpl_tbl">
        50 records per page
        </a>
    </li>
    <li><a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers" id="100" class="pPage" data-tableid="smpl_tbl">
        100 records per page
        </a>
    </li>
    <li>
        <a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers" id="all" class="pPage" data-tableid="smpl_tbl">
        Display all records
        </a>
    </li>
</ul>

在我的控制器中，我有以下代码：

public function displayAllUsers()
    {


        $recordsPerPage = 5;
        $limit = $recordsPerPage;
        $offset = 3;

        $offset = $this->uri->segment(3);
        $this->db->limit($limit, $offset);

        $data['users'] = $this->backOfficeUsersModel->get();

        $totalresults = $this->db->get('back_office_users')->num_rows();

        //initializing & configuring paging
        $this->load->library('pagination');
        $config['base_url'] = site_url('/backOfficeUsers/displayAllUsers');
        $config['total_rows'] = $totalresults;
        $config['per_page'] = $limit;
        $config['uri_segment'] = 3;
        $config['full_tag_open'] = '<div class="dataTables_paginate paging_bootstrap pagination"><ul>';
        $config['full_tag_close'] = '</ul></div>';
        $config['cur_tag_open'] = '<li><a href=# style="color:#ffffff; background-color:#258BB5;">';
        $config['cur_tag_close'] = '</a></li>';
        $config['num_tag_open'] = '<li>';
        $config['num_tag_close'] = '</li>';

        $this->pagination->initialize($config); 



        $data['main_content'] = 'bousers/users';
        $data['title'] = 'Back Office Users';
        $errorMessage = FALSE;


        $this->load->vars($data,$errorMessage);
        $this->load->vars($currentUser);
        $this->load->view('backOffice/template');


    } // end of function displayAllUsers

谁能告诉我如何显示用户从下拉菜单中选择的记录数？如果他不选择任何内容，我想默认显示 5 条记录。

任何帮助将不胜感激。

问候，佐兰

你不应该像那样下拉..试试这个

View

echo form_open('controller/displayAllUsers');
            $options = array(
                            '' => 'Select',
                             '2' => '2',
                             '50' => '50',
                             '100' => '100');
            echo form_dropdown('sel',$options,'');
echo form_submit('submit',Submit);

控制器

if(isset($post['sel']) && !empty($post['sel']))
                $config['per_page'] = $post['sel'];
                else
                $config['per_page'] = 5;

并且不要忘记加载表单助手在这样做之前..或者你可以给出正统的htmlselect box

EDIT: (其他方式)

View:

<ul class="dropdown-menu">
<li>
    <a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers/2"  class="pPage" data-tableid="smpl_tbl">
    2 records per page
    </a>
</li>
<li>
    <a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers/50"  class="pPage" data-tableid="smpl_tbl">
    50 records per page
    </a>
</li>
<li><a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers/100"  class="pPage" data-tableid="smpl_tbl">
    100 records per page
    </a>
</li>
<li>
    <a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers" id="all" class="pPage" data-tableid="smpl_tbl">
    Display all records
    </a>
</li>

控制器：

public function displayAllUsers()
{

$currentUser = $this->isLoggedIn();
$this->load->model('backOfficeUsersModel');
$this->db->order_by('userid');
//$recordsPerPage = 5;
//$limit = $recordsPerPage;
if ($this->uri->segment(3) !="") {
$limit = $this->uri->segment(3);
} else {
$limit = 5;
}

$offset = 4;

$offset = $this->uri->segment(4);
$this->db->limit($limit, $offset);

$data['users'] = $this->backOfficeUsersModel->get();