未定义的属性：stdClass::$email CodeIgniter答案

【问题标题】：Undefined property: stdClass::$email CodeIgniter未定义的属性：stdClass::$email CodeIgniter
【发布时间】：2015-05-01 22:04:50
【问题描述】：

您好，我有未定义的属性： stdClass::$email 。你能帮帮我吗？

遇到了 PHP 错误

严重性：通知

消息：未定义的属性：stdClass::$email

文件名：controllers/verifylogin.php

行号：48

回溯：

文件：D:\wamp\www\codeigniter\application\controllers\verifylogin.php 行：48 函数：_error_handler

文件：D:\wamp\www\codeigniter\index.php 行：292 功能：需要一次

这是验证登录控制器

class VerifyLogin extends CI_Controller {

 function __construct()
 {
   parent::__construct();
   $this->load->model('user_model','',TRUE);
 }

 function index()
 {
   //This method will have the credentials validation
   $this->load->library('form_validation');

   $this->form_validation->set_rules('email', 'Email', 'required|valid_email');
   $this->form_validation->set_rules('password', 'Password', 'trim|required|xss_clean|callback_check_database');

   if($this->form_validation->run() == FALSE)
   {
     //Field validation failed.  User redirected to login page
     $this->load->view('login');
   }
   else
   {
     //Go to private area
     // redirect('home', 'refresh');
   }

 }

 public function check_database($password)
 {
   //Field validation succeeded.  Validate against database
   $email = $this->input->post('email');

   //query the database
   $result = $this->user_model->login($email, $password);

   if($result)
   {
     $sess_array = array();
     foreach($result as $row)
     {
       $sess_array = array(
         'user_id' => $row->user_id,
         'email' => $row->email
       );
        // $session_data = $this->session->set_userdata('logged_in',$sess_array);
        $this->session->set_userdata('logged_in', $sess_array);

     }
     return TRUE;
   }

   else
   {
     $this->form_validation->set_message('check_database', 'Invalid email or password');
     return false;
   }
 }
}

家庭控制器

    <?php 

session_start(); //we need to call PHP's session object to access it through CI
class Home extends CI_Controller {

 function __construct()
 {
   parent::__construct();
 }

 function index()
 {
   if($this->session->userdata('logged_in'))
   {
     $session_data = $this->session->userdata('logged_in');
     $data['email'] = $session_data['email'];
     $this->load->view('home', $data);
   }
   else
   {
     //If no session, redirect to login page
     redirect('login', 'refresh');
   }
 }

 function logout()
 {
   $this->session->unset_userdata('logged_in');
   session_destroy();
   redirect('home', 'refresh');
 }

}

用户模型

    <?php

if (!defined('BASEPATH')) exit('No direct script access allowed');

class User_model extends CI_Model {

    public function login($email, $password){

        $this->db->select('user_id','email','password');
        $this->db->from('users');
        $this->db->where('email',$email);
        $this->db->where('password',md5($password));
        $this->db->limit(1);

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

        if($query->num_rows() == 1){

            return $query->result();
        }
        else {

            return false;
        }
    }
    public function register($name, $surname, $email, $password)
    {
        $data = array(
          'name' => $name,
          'surname' => $surname,
          'email' => $email,
          'password' => md5($password)
            );

        if( ($name && $surname && $email && $password) != NULL){
          $query = $this->db->insert('users', $data);

        }
        else{
          return false;
        }


      }
     }

登录表单

    <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Logowanie</title>
</head>
<body>
    <h1>Widok Logowania</h1>
    <?php echo validation_errors(); ?>
    <?php echo form_open('verifylogin'); ?>
    <label for="email">Email:</label>
    <input type="email" id="email" name="email">
    <br>
    <label for="password">Hasło: </label>
    <input type="password" id="password" name="password">
    <br>
    <input type="submit" value="Zaloguj">
    <?php echo form_close(); ?>


</body>
</html>

【问题讨论】：

如果你var_dump($result)，你会得到什么？
当我做 var_dump($result)array (size=1) 0 => object(stdClass)[23] public 'user_id' => string '19' (length=2) 好像没有电子邮件我不知道为什么
第 50 行是 'email' => $row->email

标签： codeigniter properties undefined stdclass

【解决方案1】：

我认为你的 form_open() 方法有问题

<?php echo form_open('verifylogin'); ?>

您在控制器 VerifyLogin 的函数 check_database() 中获取变量

所以你 form_open 会是

<?php echo form_open('verifylogin/check_database'); ?>

你忘记加载

$this->load->helper('form');

尝试阅读手册CI form helper

【讨论】：

`VerifyLogin::check_database() 缺少参数 1 我已经在自动加载中加载了表单：$autoload['helper'] = array('form','url','security');
从这里的 check_database($password) 中删除 $password 变量并检查
并添加 $password = $this->input->post('password');在你的 check_database() 函数中
还是同样的问题

【解决方案2】：

解决方案：用户模型.php

这个

$query = $this->db->select('user_id','email','password')

更改为 $query = $this->db->select('user_id,email','password')

我的上帝！

【讨论】：