Php Codeigniter搜索引擎错误：结果分页项显示所有帖子

我正在使用Codeigniter 3.1.8开发一个基本的博客应用程序。和引导4。该应用程序具有搜索帖子功能

标题视图中的表单：

<form method="get" action="<?php echo base_url('posts/search') ?>" id="search_form" class="w-100 py-1 px-2 px-md-3 px-lg-5" accept-charset="utf-8">
    <div class="input-group <?php if(form_error('search')) echo 'has-error';?>">
      <input class="form-control form-control-dark" type="text" name="search" placeholder="Search posts..." aria-label="Search">
      <?php if(form_error('search')) echo form_error('search'); ?> 
      <div class="input-group-append">
        <button class="btn btn-success" type="submit"><i class="fa fa-search"></i></button>
      </div>
    </div>
</form>

模型：

public function search_count($expression) {
    $query = $this->db->like('title', $expression)
                      ->or_like('description', $expression)
                      ->or_like('content', $expression);
    $query = $this->db->get('posts');
    return $query->num_rows();  
}

public function search($expression, $limit, $offset) {
    $query = $this->db->like('title', $expression)
                        ->or_like('description', $expression)
                        ->or_like('content', $expression);
    $this->db->order_by('posts.id', 'DESC');
    $query = $this->db->get('posts', $limit, $offset);
    return $query->result();
}

问题：

搜索结果的第一页按预期显示12个包含搜索表达式的项目，但所有其他页面将再次显示所有帖子

由于分页使用了

$config['query\u string\u segment']

，因此行

$query\u string\u segment='search='$表情。”&页面'

应该有助于通过

$\u GET[]

将搜索表达式传递到第1页、第2页等

但是页面项目链接不保留

=

和

&

：

<a href="http://localhost/ciblog/posts/search?search%3Dharum%26page=2" data-ci-pagination-page="2">2</a>

为什么会这样？我的错误在哪里？

这里有一个解决方案：

public function get_posts_search($keyword,$limit,$start){
   $this->db->where("(title LIKE '%$keyword%' || description LIKE '%$keyword%' || content LIKE '%$keyword%')");
   $this->db->limit($limit, $start);
   $query = $this->db->get('posts');
   return $query; //don't return result when your query haven't check if having a records
}
public function get_posts_search_total($keyword){
   $this->db->where("(title LIKE '%$keyword%' || description LIKE '%$keyword%' || content LIKE '%$keyword%')");
   $query = $this->db->get('posts');
   return $query->num_rows(); //don't return result when your query haven't check if having a records
}

---

在

\u initPagination

方法中添加这两行解决了问题：

$config['enable_query_strings'] =TRUE;
$config['reuse_query_string'] =TRUE;

整个代码：

private function _initPagination($path, $totalRows, $query_string_segment = 'page') {
//load and configure pagination 
    $this->load->library('pagination');
    $config['base_url'] = base_url($path);
    $config['query_string_segment'] = $query_string_segment; 
    $config['enable_query_strings'] =TRUE;
    $config['reuse_query_string'] =TRUE;
    $config['total_rows'] = $totalRows;
    $config['per_page'] = 12;
    if (!isset($_GET[$config['query_string_segment']]) || $_GET[$config['query_string_segment']] < 1) {
        $_GET[$config['query_string_segment']] = 1;
    }
    $this->pagination->initialize($config);

    $limit = $config['per_page'];
    $offset = ($this->input->get($config['query_string_segment']) - 1) * $limit;

    return ['limit' => $limit, 'offset' => $offset];
}

public function search() {
   // Force validation since the form's method is GET
    $this->form_validation->set_data($this->input->get());
    $this->form_validation->set_rules('search', 'Search term', 'required|trim|min_length[3]');
    $this->form_validation->set_error_delimiters('<p class = "error search-error"> ', ' </p>
        ');
    // If search fails
    if ($this->form_validation->run() === FALSE) {
        return $this->index();
    } else {
        $expression = $this->input->get('search');
        $posts_count = $this->Posts_model->search_count($expression);
        $query_string_segment = 'page';
        $config = $this->_initPagination("/posts/search", $posts_count, $query_string_segment);
        $data = $this->Static_model->get_static_data();
        $data['categories'] = $this->Categories_model->get_categories();
   //use limit and offset returned by _initPaginator method
        $data['posts'] = $this->Posts_model->search($expression, $config['limit'], $config['offset']);
        $data['expression'] = $expression;
        $data['posts_count'] = $posts_count;
        $this->load->view('partials/header', $data);
        $this->load->view('search');
        $this->load->view('partials/footer');
    }
} 

private function\u initPagination（$path、$totalRows、$query\u string\u segment='page'））{
//加载和配置分页
$this->load->library（'pagination'）；
$config['base\u url']=base\u url（$path）；
$config['query\u string\u segment']=$query\u string\u segment；
$config['enable_query_strings']=TRUE；
$config['reuse\u query\u string']=TRUE；
$config['total_rows']=$totalRows；
$config['per_page']=12；
如果（！isset（$\u GET[$config['query\u string\u segment']]））$\u GET[$config['query\u string\u segment']]<1）{
$\u GET[$config['query\u string\u segment']=1；
}
$this->pagination->initialize（$config）；
$limit=$config['每页']；
$offset=（$this->input->get（$config['query\u string\u segment'））-1）*$limit；
返回['limit'=>$limit'，offset'=>$offset]；
}
公共函数搜索（）{
//强制验证，因为表单的方法是GET
$this->form\u validation->set\u data（$this->input->get（））；
$this->form_validation->set_规则（'search'、'search term'、'required | trim | min_length[3]）；
$this->form\u validation->set\u error\u分隔符（“
”，”
');
//如果搜索失败
如果（$this->form\u validation->run（）==FALSE）{
返回$this->index（）；
}否则{
$expression=$this->input->get（'search'）；
$posts\u count=$this->posts\u model->search\u count（$expression）；
$query_string_segment='page'；
$config=$this->\初始化分页（“/posts/search”、$posts\u count、$query\u string\u段）；
$data=$this->Static_model->get_Static_data（）；
$data['categories']=$this->categories\u model->get\u categories（）；
//使用_initPaginator方法返回的限制和偏移量
$data['posts']=$this->posts_model->search（$expression，$config['limit']，$config['offset']）；
$data['expression']=$expression；
$data['posts\u count']=$posts\u count；
$this->load->view（'partials/header'，$data）；
$this->load->view（'search'）；
$this->load->view（'partials/footer'）；
}
} 

而不是

$config=$this->\u初始化分页（“/posts/search”，$posts\u count）

try

$config=array\u merge（$this->\u initPagination（“/posts/search”，$posts\u count），$config）搜索总是CI中的问题我很久以前就用过这个教程，因为CI搜索引擎参数在url中不可见，但分页效果很好@umefarooq很好的教程，但我不希望有一个存储搜索的表。我知道如何使用
get（）
，而不是
post（）
。正如您在
search%3Dharum%26page=2
中所看到的那样，
=
不会自动将URL编码为
%3D
，因为此链接中存在另一个
=
。你在代码中的什么地方建立这个链接？@vivek_23我该如何解决这个问题？
private function _initPagination($path, $totalRows, $query_string_segment = 'page') {
//load and configure pagination 
    $this->load->library('pagination');
    $config['base_url'] = base_url($path);
    $config['query_string_segment'] = $query_string_segment; 
    $config['enable_query_strings'] =TRUE;
    $config['reuse_query_string'] =TRUE;
    $config['total_rows'] = $totalRows;
    $config['per_page'] = 12;
    if (!isset($_GET[$config['query_string_segment']]) || $_GET[$config['query_string_segment']] < 1) {
        $_GET[$config['query_string_segment']] = 1;
    }
    $this->pagination->initialize($config);

    $limit = $config['per_page'];
    $offset = ($this->input->get($config['query_string_segment']) - 1) * $limit;

    return ['limit' => $limit, 'offset' => $offset];
}

public function search() {
   // Force validation since the form's method is GET
    $this->form_validation->set_data($this->input->get());
    $this->form_validation->set_rules('search', 'Search term', 'required|trim|min_length[3]');
    $this->form_validation->set_error_delimiters('<p class = "error search-error"> ', ' </p>
        ');
    // If search fails
    if ($this->form_validation->run() === FALSE) {
        return $this->index();
    } else {
        $expression = $this->input->get('search');
        $posts_count = $this->Posts_model->search_count($expression);
        $query_string_segment = 'page';
        $config = $this->_initPagination("/posts/search", $posts_count, $query_string_segment);
        $data = $this->Static_model->get_static_data();
        $data['categories'] = $this->Categories_model->get_categories();
   //use limit and offset returned by _initPaginator method
        $data['posts'] = $this->Posts_model->search($expression, $config['limit'], $config['offset']);
        $data['expression'] = $expression;
        $data['posts_count'] = $posts_count;
        $this->load->view('partials/header', $data);
        $this->load->view('search');
        $this->load->view('partials/footer');
    }
}