Question

为什么我无法访问它？

my model
News_model.php :

        <?php 
        class News_model extends CI_Model
        {

          public function __construct()
          {
            $this->load->database();
          }

          public function get_news(){
            $query = $this->db->get['news'];
            return $query->result_array();
          }

        }

        ?>  

    my Controller
    news.php :

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

    class News extends CI_Controller {

      public function __construct (){
        parent::__construct();
        $this->load->model('news_model');
        $this->load->helper('url_helper');
      }

      public function index()
      {
        $data['news'] = $this->news_model->get_news();  
        $data['title'] = 'arsip';
        $this->load->view('news/index', $data);
      }
    }
    ?>
my view
news/index.php

<?php
foreach ($news as $news_item) { ?>
  <h1><?php echo $news_item['title']; ?> </h1>
  //  <p><?php echo $news_item['text']; ?> </p>
<? } ?>

?>

routes :
<?php
defined('BASEPATH') OR exit('No direct script access allowed');

$route['news'] = 'news';
$route['default_controller'] = 'halaman/view';

$route['(:any)'] = 'halaman/view/$1';

$route['404_override'] = '';
$route['translate_uri_dashes'] = FALSE;

然后访问 http://localhost/codeigniter/index.php/news 输出是：

遇到PHP错误

严重性：注意

消息：未定义属性：CI_DB_mysqli_driver :: $ get

文件名：models / News_model.php

行号：11

回溯：

文件：/opt/lampp/htdocs/codeigniter/application/models/News_model.php   行：11功能：_error_handler

文件：/opt/lampp/htdocs/codeigniter/application/controllers/News.php   行：14功能：get_news

文件：/opt/lampp/htdocs/codeigniter/index.php行：315功能：   require_once

致命错误：在null中调用成员函数result_array（）   /opt/lampp/htdocs/codeigniter/application/models/News_model.php on   第12行遇到PHP错误

严重性：错误

消息：在null
上调用成员函数result_array（）
文件名：models / News_model.php

Answer 1

更改您的$ this-＆gt; db-＆gt; get（）;

它不应该是数组符号

  $this->db->get['news'];

它应该像

 $this->db->get('news');

或者你可以使用

  $this->db->select('*');
  $this->db->from('news');

  $query = $this->db->get();
  return $query->result_array()

Answer 2

你必须像这样给出表名： -

public function get_news(){
    $query = $this->db->get('news');
    return $query->result_array();
}

请参阅此链接http://www.codeigniter.com/user_guide/database/examples.html#query-builder-query

如何解决遇到codeigniter3的PHP错误

2 个答案: