我创建了一个登录系统，但每次设置if语句时，当我输入正确的密码时，它都会循环回登录页面。我需要控制器中的index函数、list_eemployee函数和View_eemploye函数将用户重定向到登录页面，如果他们直接访问该页面，但如果他们输入了正确的密码，则允许他们访问该页面。
user_authentication controller
<?php
session_start(); //we need to start session in order to access it through CI
Class User_Authentication extends CI_Controller {
public function __construct() {
parent::__construct();
// Load form helper library
$this->load->helper('form');
// Load form validation library
$this->load->library('form_validation');
// Load session library
$this->load->library('session');
// Load database
$this->load->model('login_database');
}
// Show login page
public function user_login_show() {
$this->load->view('login_form');
}
// Show registration page
public function user_registration_show() {
$this->load->view('registration_form');
}
// Validate and store registration data in database
public function new_user_registration() {
// Check validation for user input in SignUp form
$this->form_validation->set_rules('name', 'Name', 'trim|required|xss_clean');
$this->form_validation->set_rules('username', 'Username', 'trim|required|xss_clean');
$this->form_validation->set_rules('email_value', 'Email', 'trim|required|xss_clean');
$this->form_validation->set_rules('password', 'Password', 'trim|required|xss_clean');
if ($this->form_validation->run() == FALSE) {
$this->load->view('registration_form');
} else {
$data = array(
'name' => $this->input->post('name'),
'user_name' => $this->input->post('username'),
'user_email' => $this->input->post('email_value'),
'user_password' => $this->input->post('password')
);
$result = $this->login_database->registration_insert($data) ;
if ($result == TRUE) {
$data['message_display'] = 'Registration Successfully !';
$this->load->view('login_form', $data);
} else {
$data['message_display'] = 'Username already exist!';
$this->load->view('registration_form', $data);
}
}
}
// Check for user login process
public function user_login_process() {
$this->form_validation->set_rules('username', 'Username', 'trim|required|xss_clean');
$this->form_validation->set_rules('password', 'Password', 'trim|required|xss_clean');
if ($this->form_validation->run() == FALSE) {
$this->load->view('login_form');
} else {
$data = array(
'username' => $this->input->post('username'),
'password' => $this->input->post('password')
);
$result = $this->login_database->login($data);
if($result == TRUE){
$sess_array = array(
'username' => $this->input->post('username')
);
// Add user data in session
$this->session->set_userdata('logged_in', $sess_array);
$result = $this->login_database->read_user_information($sess_array);
if($result != false){
$data = array(
'name' =>$result[0]->name,
'username' =>$result[0]->user_name,
'email' =>$result[0]->user_email,
'password' =>$result[0]->user_password
);
redirect('employee');
}
}else{
$data = array(
'error_message' => 'Invalid Username or Password'
);
$this->load->view('login_form', $data);
}
}
}
// Logout from admin page
public function logout() {
// Removing session data
$sess_array = array(
'username' => ''
);
$this->session->unset_userdata('logged_in', $sess_array);
$data['message_display'] = 'Successfully Logout';
$this->load->view('login_form', $data);
}
}
?>
员工管理员
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Employee extends CI_Controller {
function __construct()
{
parent::__construct();
$this->load->model('login/employee_model');
}
//Shows the dashboard
public function index()
{
$this->load->view('header');
$this->load->view('employee');
$this->load->view('login/footer');
}
//Insert the employee
public function insert_employee()
{
$data=array('name'=>$this->input->post('name'),
'LanId'=>$this->input->post('LanId'),
'reason'=>$this->input->post('reason'),
'PepNumber'=>$this->input->post('PepNumber'),
'Employee_Number'=>$this->input->post('Employee_Number'),
'department'=>$this->input->post('department'),
'status'=>1);
//print_r($data);
$result=$this->employee_model->insert_employee($data);
if($result==true)
{
$this->session->set_flashdata('msg',"Employee Records Added Successfully");
redirect('employee');
}
else
{
$this->session->set_flashdata('msg1',"Employee Records Added Failed");
redirect('employee');
}
}
//List of Employees
public function list_employees()
{
$data['employee']=$this->employee_model->get_employee();
$this->load->view('header');
$this->load->view('list_of_employees',$data);
$this->load->view('login/footer');
}
//List of Employees
public function viewlist_employees()
{
$data['employee']=$this->employee_model->get_employee();
$this->load->view('header');
$this->load->view('viewlist_of_employees',$data);
$this->load->view('login/footer');
}
public function delete_employee()
{
$id=$this->input->post('id');
$data=array('status'=>0);
$result=$this->employee_model->delete_employee($id,$data);
if($result==true)
{
$this->session->set_flashdata('msg1',"Deleted Successfully");
redirect('employee/list_employees');
}
else
{
$this->session->set_flashdata('msg1',"Employee Records Deletion Failed");
redirect('employee/list_employees');
}
}
public function edit_employee()
{
$id=$this->uri->segment(3);
$data['employee']=$this->employee_model->edit_employee($id);
$this->load->view('header',$data);
$this->load->view('edit_employee');
}
public function update_employee()
{
$id=$this->input->post('id');
$data=array('name'=>$this->input->post('name'),
'LanID'=>$this->input->post('LanID'),
'reason'=>$this->input->post('reason'),
'PepNumber'=>$this->input->post('PepNumber'),
'Employee_Number'=>$this->input->post('Employee_Number'),
'department'=>$this->input->post('department'),
'status'=>1);
$result=$this->employee_model->update_employee($data,$id);
if($result==true)
{
$this->session->set_flashdata('msg',"Employee Records Updated Successfully");
redirect('employee/list_employees');
}
else
{
$this->session->set_flashdata('msg1',"No changes Made in Employee Records");
redirect('employee/list_employees');
}
}
}
?>
登录数据库模型
<?php
Class Login_Database extends CI_Model {
// Insert registration data in database
public function registration_insert($data) {
// Query to check whether username already exist or not
$condition = "user_name =" . "'" . $data['user_name'] . "'";
$this->db->select('*');
$this->db->from('user_login');
$this->db->where($condition);
$this->db->limit(1);
$query = $this->db->get();
if ($query->num_rows() == 0) {
// Query to insert data in database
$this->db->insert('user_login', $data);
if ($this->db->affected_rows() > 0) {
return true;
}
} else {
return false;
}
}
// Read data using username and password
public function login($data) {
$condition = "user_name =" . "'" . $data['username'] . "' AND " . "user_password =" . "'" . $data['password'] . "'";
$this->db->select('*');
$this->db->from('user_login');
$this->db->where($condition);
$this->db->limit(1);
$query = $this->db->get();
if ($query->num_rows() == 1) {
return true;
} else {
return false;
}
}
// Read data from database to show data in admin page
public function read_user_information($sess_array) {
$condition = "user_name =" . "'" . $sess_array['username'] . "'";
$this->db->select('*');
$this->db->from('user_login');
$this->db->where($condition);
$this->db->limit(1);
$query = $this->db->get();
if ($query->num_rows() == 1) {
return $query->result();
} else {
return false;
}
}
}
?>
员工_型号
<?php
class Employee_model extends CI_Model
{
public function insert_employee($data)
{
$this->db->insert('employee_list',$data);
return ($this->db->affected_rows() != 1 ) ? false:true;
}
public function get_employee()
{
$this->db->select('*');
$this->db->from('employee_list');
$this->db->where('status',1);
$query =$this->db->get();
return $query->result();
}
public function delete_employee($id,$data)
{
$this->db->where('id',$id);
$this->db->update('employee_list',$data);
return ($this->db->affected_rows() != 1 ) ? false:true;
}
public function edit_employee($id)
{
$this->db->select('*');
$this->db->from('employee_list');
$this->db->where('id',$id);
$this->db->where('status',1);
$query =$this->db->get();
return $query->result();
}
public function update_employee($data,$id)
{
$this->db->where('id',$id);
$this->db->update('employee_list',$data);
return ($this->db->affected_rows() != 1 ) ? false:true;
}
}
添加带有logged_in的if语句，并重定向到登录表单if不正确
public function index()
{
if($this->session->userdata('logged_in'))
{
$this->load->view('header');
$this->load->view('employee');
$this->load->view('login/footer');
}else{
redirect('user_authentication/user_login_show');
}
}
最佳实践是在CI中添加控制器的构造函数中的检查。这是我的例子。
public function __construct() {
parent::__construct();
if (!$this->session->userdata('user_data')) {
return redirect('login');
}
$this->load->model('customer_model');
}
您可以添加else语句以重定向到仪表板，或者如果用户登录，则重定向到结果页面。
将这行代码添加到您的构造函数中：
$this->load->library('session');
这将对你有所帮助。
public function login()
{
$this->load->view('login');
if (isset($_POST['login']))
{
$emailid = $this->input->post('emailid');
$password = $this->input->post('password');
$this->load->model('main_model');
if($this->main_model->can_login('$emailid','$Password'))
{
$session_data = array(
'emailid' => $emailid,
'password' => $password,
'iss_logged_in' => 1
);
$this->session->set_userdata($session_data);
redirect(base_url().'index.php/Hello_cnt/');
}
else
{
$this->session->set_flashdata('error', 'Invalid Username and Password');
redirect(base_url().'index.php/Hello_cnt/login');
}
}
}