可以'；我的登录功能无法正常工作.请帮忙.CI

我带着另一个问题回来了：（.我正试图创建我的登录函数，但由于某种原因它无法启动。我已经盯着代码看了两个小时，似乎找不到问题。我得到的结果只是一个空白页@http://localhost:8888/core/login_wax。那就是我单击Log In!按钮@http://localhost:8888/core的时候。我希望你们中至少有一个人能发现问题并告诉我。我真的很感激我在这里得到的帮助。非常感谢。

在数据库中，我有一个名为users的表，其中有4行id、name、password和email。

控制器-核心

<?php
class Core extends CI_Controller {
    public function __construct() {
        parent::__construct();   
    }
    public function index() {
        $data = array('loggedV' => 'false');
        $this->load->view('core_v', $data);
    }
    public function login_wax() {
            $name = $this->input->post('login_name_field');
            $password = $this->input->post('login_pw_field');
            $this->do_login($name, $password);
        }
    private function do_login($name, $password)
    {
        $this->load->model('User_m');
        $user_id = $this->User_m->get_user($name, $password);
        /* If user has been found */
        if($user_id) {
            $this->session->set_userdata('user_id', $user_id);
            /* Query that retrievs users name and assigns it to $user_name */
            $user_name = "James";
            $data = array('logged' => 'true', 'name' => $user_name);
            $this->load->view('core_v', $data);

        /* If user has NOT been found in the DB */  
        } else {
            /* Tell him the name or pw are wrong */
            $message = "Wrong Input";
        }
    }

型号-用户

<?php
    class User_m extends CI_Model {
        public function get_user($name, $password) {

            $query = $this->db->query("SELECT * FROM (`users`) WHERE `name` = '"$name'" AND `password` = '"$password'" LIMIT 1");
            if ($query->num_rows() > 0)
            {
                $row = $query->row(); 
                return $row->id;
            }
            return false;
        }

    }

视图-核心

<?php echo form_open('core/login_wax'); ?>
<input type="text" class="n_reset" name="login_name_field" id="name" value="Mail / Email"></input>
<input type="password" name="login_pw_field" value="password" class="p_reset" id="password">                    
<input type="submit" id="whatever" name="whatever" value="Log In!">
</form>