加载时Codeigniter问题模型

Question

我是codeigniter的新手，我在构造函数方法中加载模型时遇到了一些问题。有人可以帮我吗？下面是从控制器我试图加载从模型的代码...

<?php 

    class Login extends CI_Controller { 

     function Login(){ 
      $this->load->model('membership_model'); 
     } 

     public function index(){ 
      $this->load->view('login_view.php'); 
     } 

     public function authenticate(){ 
      $user = $this->input->post('username'); 
      $pass = sha1($this->input->post('password')); 
      if($user != null && $pass != null){ 
       $access = $this->membership_model->request_access($user, $pass); 
       if($access == true){ 
        $cookie = array(
         'name' => 'username', 
         'value' => $user, 
         'expire' => '86500', 
         'domain' => 'unleashourmedia.com', 
         'path' => '/', 
         'prefix' => '', 
         'secure' => TRUE 
        ); 

        $this->input->set_cookie($cookie); 
        echo "cookie"; 
       } else { 
        redirect('login'); 
       } 
      } 
     } 

    } 

?> 

Answer 1

问题是你是不是调用父类的构造函数。

添加为在构造函数的第一行：

parent::__construct(); 

Answer 2

function Login(){ 
    $this->load->model("membership_model","",TRUE); 
    } 

Answer 3

//make sure you call parent constructor before anything in that constructor like this 
    function Login(){ 
     parent::__construct(); 
     $this->load->model('membership_model'); 
    } 

    //and you may also try to name the constructor __construct 
    function __construct(){ 
     parent::__construct(); 
     $this->load->model('membership_model'); 
    }