我正在尝试使用以下代码登录。这个代码有问题吗？请提供正确的登录代码。。
控制器：
public function login() {
$data = $this->data;
$email = $this->input->post('email');
$password = md5($this->input->post('password'));
$result = $this->user_model->login($email, $password);
if (count($result) !== 0) {
$this->session->set_userdata('user_id', $email);
$seid = $this->session->userdata('user_id');
if ($seid == '') {
redirect(site_url());
} else {
redirect('home/view');
}
} else {
redirect('home/index');
}
}
型号：
function login($email, $password) {
$this->db->where("email", $email);
$this->db->where("password", $password);
$query = $this->db->get("user");
return $query->result_array();
}
试试这个。。。
Html:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Simple Login with CodeIgniter</title>
</head>
<body>
<h1>Simple Login with CodeIgniter</h1>
<?php echo validation_errors(); ?>
<?php echo form_open('verifylogin'); ?>
<label for="username">Username:</label>
<input type="text" size="20" id="username" name="username"/>
<br/>
<label for="password">Password:</label>
<input type="password" size="20" id="passowrd" name="password"/>
<br/>
<input type="submit" value="Login"/>
</form>
</body>
</html>
控制器：
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class VerifyLogin extends CI_Controller {
function __construct()
{
parent::__construct();
$this->load->model('user','',TRUE);
}
function index()
{
//This method will have the credentials validation
$this->load->library('form_validation');
$this->form_validation->set_rules('username', 'Username', 'trim|required|xss_clean');
$this->form_validation->set_rules('password', 'Password', 'trim|required|xss_clean|callback_check_database');
if($this->form_validation->run() == FALSE)
{
//Field validation failed. User redirected to login page
$this->load->view('login_view');
}
else
{
//Go to private area
redirect('home', 'refresh');
}
}
function check_database($password)
{
//Field validation succeeded. Validate against database
$username = $this->input->post('username');
//query the database
$result = $this->user->login($username, $password);
if($result)
{
$sess_array = array();
foreach($result as $row)
{
$sess_array = array(
'id' => $row->id,
'username' => $row->username
);
$this->session->set_userdata('logged_in', $sess_array);
}
return TRUE;
}
else
{
$this->form_validation->set_message('check_database', 'Invalid username or password');
return false;
}
}
}
?>
型号：
<?php
Class User extends CI_Model
{
function login($username, $password)
{
$this -> db -> select('id, username, password');
$this -> db -> from('users');
$this -> db -> where('username', $username);
$this -> db -> where('password', MD5($password));
$this -> db -> limit(1);
$query = $this -> db -> get();
if($query -> num_rows() == 1)
{
return $query->result();
}
else
{
return false;
}
}
}
?>
http://www.iluv2code.com/login-with-codeigniter-php.html
public function login(){
$email=$this->input->post('email');
//query the database
$result = $this->mod_user->login($email, $password);
if($result){
$sess_array = array();
foreach($result as $row){
$sess_array = array(
'user_id' => $row->user_id,
'email' => $row->email
);
$this->session->set_userdata('sess', $sess_array);
}
return TRUE;
}
else
{
$this->form_validation->set_message('login', 'Invalid username or password');
return false;
}
}
function login($userName, $pass){
$this -> db -> select('user_id, email, password');
$this -> db -> from('tbl_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;
}
}
试试这个。。希望它能帮助你
进行如下更改：
public function login() {
$this->load->helper('form');
$this->load->library('form_validation');
$this->form_validation->set_rules('email', 'Email', 'required');
$this->form_validation->set_rules('password', 'Password', 'required');
// This condition check whether the request is post with valid data or not if it's not a post request than form validation return FALSE
if ($this->form_validation->run() == FALSE) {
// This condition check if session id is set or not if session id is set it will redirect you to homepage.
if (isset($this->session->userdata['user_id'])) {
redirect('home/view');
} else {
//else it will redirect you to login page.
$this->load->view('login_view');
}
} else {
//if it's a post request with valid data it will validate data in database.
$email = $this->input->post('email');
$password = md5($this->input->post('password'));
$result = $this->user_model->login($email, $password);
//This condition redirect you to homepage if you entered valid credentials
if (count($result) !== 0) {
$this->session->set_userdata('user_id', $email);
redirect('home/view');
} else {
//This will redirect you to login page with error.
$this->session->set_flashdata('message', 'Login Fail!!<br>Invalid username or password!!');
redirect('login');
}
}
}
此代码将重定向您到登录页面，以防它无法获得会话id，否则它将重定向您至主页。
型号
function fetchrowlogin($info,$table){
$this->db->select('*');
$this->db->where($info);
$this->db->from($table);
$query = $this->db->get();
if($query->num_rows() > 0){
$row = $query->row_array();
return $row;
}
}
控制器
function login(){
if(isset($_POST['login'])){
$log['email'] = $_POST['email'];
$log['password'] = $_POST['password'];
$details = $this->User_model->fetchrowlogin($log,'candidate');
if(count($details)){
$ids = $details['id'];
$email = $details['email'];
$fname = $details['fname'];
$this->session->set_userdata(array(
'custid' => $ids,
'emailid'=> $email,
'fname'=> $fname,
));
redirect('http://localhost/test27/index.php/welcome/dashboard');
}else{
redirect(base_url().'front1');
}
}
$this->load->view('front/login');
}
创建控制器登录.php
<?php
class Login extends CI_Controller
{
public function __construct()
{
parent::__construct();
$this->load->model('Common_model');
}
public function index()
{
$data['title']="Welcome to login page";
$this->load->view('login',$data);
}
public function login()
{
$this->load->library('form_validation');
$this->load->helper('cookie');
$this->form_validation->set_rules('username', 'username', 'required');
$this->form_validation->set_rules('password', 'password', 'required');
if ($this->form_validation== FALSE)
{
$this->load->view('login');
}
else
{
$username=$this->input->post('username');
$pass=$this->Common_model->encrypt_script($this->input->post('password'));
// print_r($pass);exit;
$remember=$this->input->post('remember');
$where=array("email"=>$username , "password"=>$pass);
//print_r($where);exit;
if( !$data['res'] = $this->Common_model->select_where('user_master',$where))
{
$this->session->set_flashdata('error_message','Invalide username and password');
// $this->session->keep_flashdata('error_message');
$error_message=$this->session->flashdata('error_message');
redirect(base_url().'login','refresh');
//echo "error";
}
else
{
$session_data=array(
'username'=>$username
);
$this->session->set_userdata($session_data);
if($remember != NULL)
{
setcookie('username',$username,time()+3600);
}
redirect(base_url().'control/display');
}
}
}
public function logout()
{
$this->session->unset_userdata('username');
redirect('login/login');
}
}
创建表单登录login.php
<!DOCTYPE html>
<html lang="en">
<!-- BEGIN HEAD -->
<head>
<body class=" login">
<!-- BEGIN LOGO -->
<div class="logo">
<a href="<?=base_url()?>">
<img src="<?php echo base_url('assets/pages/img/logo-big.png')?>" alt="" /> </a>
</div>
</a>
</div>
<!-- END LOGO -->
<!-- BEGIN LOGIN -->
<div class="content">
<!-- BEGIN LOGIN FORM -->
<form name="login_form" class="login-form" action="<?=base_url()?>login/login" method="post" id="login_form">
<h3 class="form-title font-green">Sign In</h3>
<?php
if (!empty(form_error('email'))) { ?>
<div class="text-center alert alert-danger" id="div_msg">
<?php echo '<label class="error-list-color">' . urldecode(form_error('email')) . '</label>';
?>
</div>
<?php } ?>
<?php
if (!empty($msg)) {
?>
<div class="col-sm-12 text-center alert alert-danger" id="div_msg">
<?php echo '<label class="error-list-color">' . urldecode($msg) . '</label>';
?>
</div>
<?php } ?>
<div class="form-group">
<label class="control-label visible-ie8 visible-ie9">username</label>
<input class="form-control form-control-solid placeholder-no-fix" type="text" autocomplete="off" placeholder="Username" name="username" value="<?= !empty($_COOKIE['username']) ? htmlentities($_COOKIE['username']) : set_value('username'); ?>" />
<p ><?php echo form_error('email'); ?></p>
</div>
<div class="form-group">
<label class="control-label visible-ie8 visible-ie9">Password</label>
<input class="form-control form-control-solid placeholder-no-fix" type="password" autocomplete="off" placeholder="Password" name="password" value="<?= !empty($_COOKIE['password']) ? htmlentities($_COOKIE['password']) : ''; ?>"/>
<p><?php echo form_error('password'); ?></p>
</div>
<div class="form-actions">
<button type="submit" class="btn green uppercase">Login</button>
<label class="rememberme check">
<input type="checkbox" name="remember" value="1" />Remember </label>
<a href="javascript:;" id="forget-password" class="forget-password" onclick="show_forget()">Forgot Password?</a>
</div>
<div class="create-account">
<p>
<a href="<?=base_url()?>user_authentication">Login With Facebook</a>
</p>
</div>
</form>
<!-- END LOGIN FORM -->
<!-- BEGIN FORGOT PASSWORD FORM -->
<form class="forget-form" id="forget_form" action="<?=base_url()?>admin/login/forget_password" method="post" >
<h3 class="font-green">Forget Password ?</h3>
<p> Enter your e-mail address below to reset your password. </p>
<div class="form-group">
<input class="form-control placeholder-no-fix" type="text" autocomplete="off" placeholder="Email" name="forgot_email" />
<p><?php echo form_error('forgot_email'); ?></p>
</div>
<div class="form-actions">
<button type="button" id="back-btn" onclick="show_login()" class="btn btn-default">Back</button>
<button type="submit" class="btn btn-success uppercase pull-right">Submit</button>
</div>
</form>
<!-- END FORGOT PASSWORD FORM -->
</div>
<div class="copyright"> 2017 © Facil E-commerce. </div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>
$(document).ready(function()
{
$("#div_msg").fadeOut(4000);
$('#login_form').validate({
rules:{
username: {
required: true,
email: true,
},
password: {
required: true,
minlength:5
},
},
messages : {
username: {
required:"Please enter email address."
},
password : {
required:"Please enter password."
}
},
invalidHandler: function(event, validator) { //display error alert on form submit
},
highlight: function(element) { // hightlight error inputs
$(element).closest('.form-group').addClass('has-error'); // set error class to the control group
},
success: function(label) {
label.closest('.form-group').removeClass('has-error');
label.remove();
},
});
$('#forget_form').validate({
rules:{
forgot_email: {
required: true,
email: true
},
},
messages : {
forgot_email: {
required:"Please enter email address."
},
},
invalidHandler: function(event, validator) { //display error alert on form submit
},
highlight: function(element) { // hightlight error inputs
$(element).closest('.form-group').addClass('has-error'); // set error class to the control group
},
success: function(label) {
label.closest('.form-group').removeClass('has-error');
label.remove();
},
});
});
function show_forget() {
$('#login-form').hide();
$('#forget-form').show();
}
function show_login() {
$('#forget-form').hide();
$('#login-form').show();
}
</script>
</body>
</html>