Question

我正在使用Codeigniter 3并拥有一个简单的PHP应用程序。

使用分页类我想在每个页面的顶部显示以下内容;

显示z结果的x到y

其中;

x = start row
y - end row
z = total rows

`Showing 1 to 10 of 5213 results.`
`Showing 11 to 20 of 5213 results.`
`etc`

我可以使用$config['total_rows']变量检索总行数。但不确定其余部分。

我的items.php控制器看起来像这样;

    public function index() {
        $config['base_url'] = '/items/index';
        $config['use_page_numbers'] = FALSE; 
        $config['reuse_query_string'] = TRUE;
        $config['total_rows'] = $this->db->get('item')->num_rows();
        $config['per_page'] = 10;
        $config['num_links'] = 10;
        $config['full_tag_open'] = '<div><ul class="pagination">';
        $config['full_tag_close'] = '</ul></div><!--pagination-->';
        $config['first_link'] = '&laquo; First';
        $config['first_tag_open'] = '<li class="prev page">';
        $config['first_tag_close'] = '</li>';
        $config['last_link'] = 'Last &raquo;';
        $config['last_tag_open'] = '<li class="next page">';
        $config['last_tag_close'] = '</li>';
        $config['next_link'] = 'Next &rarr;';
        $config['next_tag_open'] = '<li class="next page">';
        $config['next_tag_close'] = '</li>';
        $config['prev_link'] = '&larr; Previous';
        $config['prev_tag_open'] = '<li class="prev page">';
        $config['prev_tag_close'] = '</li>';
        $config['cur_tag_open'] = '<li class="active"><a href="">';
        $config['cur_tag_close'] = '</a></li>';
        $config['num_tag_open'] = '<li class="page">';
        $config['num_tag_close'] = '</li>';
        $config['anchor_class'] = 'follow_link';
        $this->load->library('pagination');
        $this->pagination->initialize($config);

        $data = array(
        'items' => $this->items_model->itemList()
        );

        $this->load->view('item_list', $data);
    }

我的网址采用以下格式;

items/index    // displays results 1-10
items/index/10 // displays results 11-20
items/index/20 // displays results 21-30

任何帮助将不胜感激。感谢

Answer 1

$data['z'] = $config['total_rows'];

$data['x'] = (int)$this->uri->segment(3) + 1;

if ($this->uri->segment(3) + $config['per_page'] > $config['total_rows']) {
    $data['y'] = $config['total_rows'];
} else {
    $data['y'] = (int)$this->uri->segment(3) + $config['per_page'];
}

此外，如果请求的页面在范围内，您可以在加载视图之前进行一次检查，如果不是，则应根据您的要求将访问者重定向到第一页或最后一页。

Answer 2

将以下代码放在控制器中的分页功能下方： -

$start= (int)$this->uri->segment(3) * $config['per_page']+1;
$end = ($this->uri->segment(3) == floor($config['total_rows']/ $config['per_page']))? $config['total_rows'] : (int)$this->uri->segment(3) * $config['per_page'] + $config['per_page'];

$data['result_count']= "Showing ".$start." - ".$end." of ".$config['total_rows']." Results";

在您的观点上： -

<?php echo $result_count;?>

Answer 3

我很惊讶没有提到扩展分页库吗？更加优雅，可以根据需要添加其他功能。

应用程序/库/MY_Pagination.php

<?php

defined('BASEPATH') or exit('No direct script access allowed');

class MY_Pagination extends CI_Pagination
{
    /**
     * Total number of items
     *
     * @var int
     */
    protected $total_rows = 0;

    public function __construct($params = array())
    {
        parent::__construct($params);
    }

    public function get_total_rows(): int
    {
        return $this->total_rows;
    }
}

Codeigniter分页显示结果数量＆amp;页

3 个答案: