登录时密码不匹配 - Password is not matching while logging in

我在注册表单时有以下代码：

function register()
    {
$this->form_validation->set_rules('txt_username', 'Username', 'trim|required');
$this->form_validation->set_rules('cpassword', 'Confirm Password', 'trim|required|matches[txt_password]|md5');
$this->form_validation->set_rules('txt_password', 'Password', 'trim|required|md5');  
//other codes

$data = array('username' => $this->input->post('txt_username'),
              'password' => $this->input->post('txt_password')
            );
            // insert form data into database
           if ($this->account_model->insertUser($data));
             { 
            $this->session->set_flashdata('msg','successfully registered!');
            redirect('account/register');
        }
}

密码在此匹配。但当我使用相同的数据来登录用户名和密码时：它显示无效的用户名或密码：登录功能如下：

function login()
{
                    //set validations
          $this->form_validation->set_rules("txt_username", "Username", "trim|required");
          $this->form_validation->set_rules("txt_password", "Password", "trim|required");
              $username = $this->input->post("txt_username");
              $password = $this->input->post("txt_password");
                $usr_result = $this->account_model->get_user($username, $password);
                    if ($usr_result > 0) //active user record is present
                    {
                    $this->account_model->login();
            $data['message'] ="You are logged in!"; 
        }
                    else
                    {
        $this->session->set_flashdata('msg', 'Invalid username and password!');
                    }
        }
}

我有一个将注册表数据插入数据库的模型：

function insertUser($data)
    {
        return $this->db->insert('user', $data);
    }

我有这个模型来检索登录数据：

function get_user($usr, $pwd)
     {
          $sql = "select * from user where username = '" . $usr . "' and password = '".md5($pwd). "'";
          $query = $this->db->query($sql);
          return $query->num_rows();
     }

代替MD5的最佳方法是在Codeigniter中使用base64。即CCD_ 3和CCD_。

编码

$password = 'mYp@ssw0rd'; // or $password
$encriptKey = 'super-secret-key';
$encrypted_string = $this->encrypt->encode($password, $encriptKey);

解码

$password = 'mYp@ssw0rd'; // or $password
$encriptKey = 'super-secret-key';
$decrypted_string = $this->encrypt->decode($password, $encriptKey);

此外

同时加载库$this->load->library('encrypt');

您可以在您的模型中做到这一点：

public function login()
    {
        $user = $this->get_by(array(
            'email' => $this->input->post('email'),
            'password' => $this->hash($this->input->post('password')),
        ), TRUE);

        if (count($user)) 
        {
            // Log in user
            $data = array(
                'name' => $user->name,
                'email' => $user->email,
                'id' => $user->id,
                'user_type'=>$user->user_type,
                'emp_id'=>$user->emp_id,
                'loggedin' => TRUE,
            );
            $this->session->set_userdata($data);
            return TRUE; 
        }
        return FALSE;
    }

    public function logout ()
    {
        $this->session->sess_destroy();
        $this->session->unset_userdata('logged_in','id','name','email');
    }
    public function loggedin ()
    {
        return (bool) $this->session->userdata('loggedin');
    }

    public function hash ($string)
    {
        return hash('sha512', $string . config_item('encryption_key'));
    }

并且可以让用户登录。使用CI会话进行登录，这将是一个更好的选择。点击此处阅读更多

对于控制器这样做：

public function login()
{
    $dashboard ='admin/dashboard';


    $rules = $this->secure_m->rules;
    $this->form_validation->set_rules($rules);

    if ($this->form_validation->run() == TRUE)
    {
        if ($this->secure_m->login() == TRUE)
        {
                $this->secure_m->loggedin() == FALSE || redirect($dashboard);
                redirect($dashboard);
        }
        else
        {
            $this->session->set_flashdata('error', 'That email/password combination does not exist');
            redirect('secure/login', 'refresh');
        }
    }
    $this->load->view("Your View");
}

请在插入时存储加密密码
例如：

$data['password'] = md5($data['password']);

我认为这会解决你的问题。其他代码对我来说运行良好。