嘿，在您的控制器中创建一个名为Modal.php的文件，并将此代码粘贴到此

Hey Create a file named Modal.php in your controller and paste this code in this

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Modal extends CI_Controller {


    function __construct()
    {
        parent::__construct();
        $this->load->database();        
        $this->load->helper(array('form', 'url'));
        /*cache control*/
        $this->output->set_header('Last-Modified: ' . gmdate("D, d M Y H:i:s") . ' GMT');
        $this->output->set_header('Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0');
        $this->output->set_header('Pragma: no-cache');
        $this->output->set_header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); 
    }

    /***default functin, redirects to login page if no admin logged in yet***/
    public function index()
    {

    }


    /*
    *   $page_name      =   The name of page
    */
    function popup($page_name = '' , $param2 = '' , $param3 = '')
    {
        //$account_type             =   $this->session->userdata('login_type');
        $page_data['param2']        =   $param2;
        $page_data['param3']        =   $param3;
        $this->load->view( $page_name.'.php' ,$page_data);
    }
}

和 查看所有用户

<?php 
$count = 1;

foreach ($ro as $r) 
{
    ?>
    <tr>
        <td scope="row"><?php echo $count++?></td>

        <td>
                <?php echo $r->username; ?>
        </td>
<td>
<button onclick="showAjaxModal('<?php echo site_url(); ?>/modal/popup/details/<?php echo $r->username; ?>')">Details</button>
</td>
</tr><?php } ?>

还有一些html

 <div class="modal fade" id="modal_ajax" data-backdrop="static" data-keyboard="false">
        <div class="modal-dialog" >
            <div class="modal-content">

                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
                    <h4 class="modal-title">User Details</h4>
                </div>

                <div class="modal-body">



                </div>

                <div class="modal-footer">
                    <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
                </div>
            </div>
        </div>
    </div>

和一些javascript

and some javascript

<script>
function showAjaxModal(url)
    {
        // SHOW AJAX RESPONSE ON REQUEST SUCCESS
        jQuery.ajax({
            url: url,
            success: function(response)
            {
                jQuery('#modal_ajax .modal-body').html(response);                         
                jQuery('#modal_ajax').modal('show', {
                  backdrop: 'static',
                  keyboard: false
                });

            }
        });
    }
</script>

最后在application/views文件夹中创建一个名为details.php的文件，然后写入

And finally create a file named details.php in your application/views folder and Write

<?php
$this->db->where('username', $param2);
    $query = $this->db->get('user');

$details = $query->row();

print_r($details);
?>