The getResult() and getRow() methods retrieve the data from the database. getResult() method returns the list of data objects and the getRow() method returns the single row.

Syntax:

// Get the list of data
$this->db->table('table_name')->get()->getResult(); 
// Get the single data
$this->db->table('table_name')->get()->getRow();

1. Copy and Paste the following lines in app/Config/Routes.php

$routes->add('user/list', 'User::list');

2. Create a list.php file in app/Views/ directory

<table width="600" border="1" cellspacing="5" cellpadding="5">
    <tr style="background:#CCC">
        <th>Sr No</th>
        <th>First_name</th>
        <th>Last_name</th>
        <th>Email Id</th>
        <th>Update</th>
    </tr>
    <?php $i=1; foreach($result as $row) { 
        echo "<tr>"; 
        echo "<td>".$i. "</td>"; 
        echo "<td>".$row->first_name."</td>";
        echo "<td>".$row->last_name."</td>"; 
        echo "<td>".$row->email."</td>"; 
        echo "<td><a href="<?php echo base_url('user/edit'.$row->id) ?>">Edit</a></td>";
        echo "</tr>"; $i++; } ?>
</table>

3. Create a model file UserModel.php in the app/Models/ directory.

<?php 
namespace AppModels;

use CodeIgniterModel;
use CodeIgniterDatabase\ConnectionInterface;

class UserModel extends Model {
    
    protected $db;
    public function __construct(ConnectionInterface &$db) {
        $this->db =& $db;
    }

    public function list() {
        return $this->db
                        ->table('user_info')
                        ->get()
                        ->getResult();
    }
    
}

4. Create a controller file User.php in the app/Controllers/ directory.

<?php
namespace AppControllers;

use AppModelsUserModel;

class User extends BaseController {

    public function __construct() {

        $db = db_connect();
        $this->userModel = new UserModel($db);
    }

    public function add() {
        $this->load->view('add');
    }

    public function list() {
        $data['result'] = $this->userModel->list();
        echo view('list', $data);
    }
}