CI分页返回邮件链接

我正在学习CI，最近我的任务是分页。所以我遵循了这个教程，因为它看起来制作和解释得相对不错。链接

分页有效而且很棒。现在我想在每个帖子下面多读一读，让每个帖子都单独打开，并附上完整的描述。这也是有效的，但当我单击链接返回到分页索引时，无论我单击哪个帖子，列表都会从头开始。我不知道如何添加页面，我希望返回链接能带我回去，所以我只在这里发布这篇文章，希望有人不会告诉我太难。

如果有人对我想要的东西感到困惑，只需查看最后一个视图readmore_paginate。在其中，最后一个链接应该包含一个数字到页面，但我知道如何放置或在那里放置什么。

控制器

public function paginate()
{
    $config = array();
    $config['base_url'] = base_url()."welcome/paginate";
    $config['total_rows'] = $this->blog_model->countPosts();
    $config['per_page'] = 2;
    $config['uri_segment'] = 3;
    $this->pagination->initialize($config);
    $page = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0; //TERNARY OPERATOR (? = TRUE) (: = FALSE)
    $data['results'] = $this->blog_model->fetchPosts($config['per_page'], $page);
    $data['links'] = $this->pagination->create_links();
    $this->load->view('header');
    $this->load->view("p_content", $data);
    $this->load->view('footer');
}
public function readMore_Paginate()
{
    $id = $this->input->get('postid');
    $data['post'] = $this->blog_model->getSpecificPost($id);
    $this->load->view('header');
    $this->load->view('readmore_paginate', $data);
    $this->load->view('footer');
}

型号

public function countPosts()
{
    return $this->db->count_all("Blogposts");
}
public function fetchPosts($limit, $start)
{
    $this->db->select('*');
    $this->db->from('Blogposts');
    $this->db->join('Blogcategories', 'Blogposts.postcatid=Blogcategories.id');
    $this->db->limit($limit, $start);
    $query = $this->db->get();
    if($query->num_rows() > 0)
    {
        foreach ($query->result() as $row) {
            $data[] = $row;
        }
        return $data;
    }
    return false;
}

查看p_content

    <div class="col-md-8">      
            <table class="table">
                <tbody>
<?php 
foreach ($results as $key) {
                        echo "<tr><th><h2><kbd><font color='yellow'>".$key->postname."</font></kbd></h2><kbd><font color='lime'>".date("d M Y",strtotime($key->postdate))."</font></kbd> <kbd><font color='cyan'>".$key->catname."</font></kbd></th></tr>";
                        echo "<tr><td><blockquote>".mb_substr($key->postdesc, 0,80,'UTF-8')."...";?>
                        <a href="<?php echo base_url()."welcome/readmore_paginate?postid=".$key->postid; ?>">read more</a></blockquote> 
                                            <?php } ?>
    </tbody>
            </table>
            <p><?php echo $links; ?></p>
        </div>

查看自述文件页面

    <div class="col-md-8">      
            <table class="table">
                <tbody>
<?php 
foreach ($post as $key) {
                            echo "<tr><th><h2><kbd><font color='yellow'>".$key['postname'].
                                "</font></kbd></h2><kbd><font color='lime'>".
                                date("d M Y",strtotime($key['postdate']))."
                                </font></kbd> <kbd><font color='cyan'>".
                                $key['catname']."</font></kbd></th></tr>";
                            echo "<tr><td><blockquote>".$key['postdesc']."</blockquote>"; ?>
                            <a href="<?php echo base_url().'welcome/paginate'; ?>">Back to Posts</a>
                        <?php }
                     ?>
</tbody>
        </table>
    </div>