Login CodeIgniter
Contents
Database
Create Database
CREATE DATABASE my_db;
Create Table
CREATE TABLE `user` ( `user_id` int(11) NOT NULL AUTO INCREMENT, `name` varchar(32) NOT NULL, `username` varchar(64) NOT NULL, `password` varchar(255) NOT NULL, `role` int(11) NOT NULL, `user_status` int(11) NOT NULL PRIMARY KEY (`user_id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3;
Insert Data
Jika menggunakan SHA
INSERT INTO table_user VALUES
('1','User','user',SHA2('user123', 224),'2'),
('2','Admin','admin',SHA2('admin123', 224),'1');
Jika menggunakan MD5
INSERT INTO table_user VALUES
('1','User','user',MD5('user123'),'2'),
('2','Admin','admin',MD5('admin123'),'1');
Controller
Login
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Login extends CI_Controller {
function __construct(){
parent::__construct();
$this->load->model('Model_login','Model_login');
}
function index(){
if($this->session->userdata('logged') !=TRUE){
$this->load->view('view-login');
}else{
$url=base_url('home');
redirect($url);
};
}
function auth(){
$username = $this->input->post('username');
$password = $this->input->post('pass');
$validasi = $this->Model_login->query_validasi_username($username);
if($validasi->num_rows() > 0){
$validate_pswd=$this->Model_login->query_validasi_password($username,$password);
if($validate_pswd->num_rows() > 0){
$x = $validate_pswd->row_array();
if($x['user_status']=='1'){
$this->session->set_userdata('logged',TRUE);
$this->session->set_userdata('user',$username);
$id=$x['user_id'];
if($x['role']=='1'){ //Administrator
$name = $x['user_name'];
$this->session->set_userdata('access','Administrator');
$this->session->set_userdata('id',$id);
$this->session->set_userdata('name',$name);
redirect('home');
}else if($x['role']=='2'){ //User
$name = $x['user_name'];
$this->session->set_userdata('access','User');
$this->session->set_userdata('id',$id);
$this->session->set_userdata('name',$name);
redirect('home');
}else{
$url=base_url('login');
echo $this->session->set_flashdata('msg','<span onclick="this.parentElement.style.display=`none`" class="w3-button w3-large w3-display-topright">×</span>
<h3>Uupps!</h3>
<p>Akun kamu telah di blokir. Silahkan hubungi admin.</p>');
redirect($url);
}
}else{
$url=base_url('login');
echo $this->session->set_flashdata('msg','<span onclick="this.parentElement.style.display=`none`" class="w3-button w3-large w3-display-topright">×</span>
<h3>Uupps!</h3>
<p>Password yang kamu masukan salah.</p>');
redirect($url);
}
}else{
$url=base_url('login');
echo $this->session->set_flashdata('msg','<span onclick="this.parentElement.style.display=`none`" class="w3-button w3-large w3-display-topright">×</span>
<h3>Uupps!</h3>
<p>Email yang kamu masukan salah.</p>');
redirect($url);
}
}
function logout(){
$this->session->sess_destroy();
$url=base_url('login');
redirect($url);
}
}
Home
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Home extends CI_Controller {
function __construct(){
parent::__construct();
if($this->session->userdata('logged') !=TRUE){
$url=base_url('login');
redirect($url);
};
}
public function index()
{
$this->load->view('view-home');
}
}
Model
Login
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Mlogin extends CI_Model{
function query_validasi_username($username){
$result = $this->db->query("SELECT * FROM user WHERE username='$username' LIMIT 1");
return $result;
}
function query_validasi_password($username,$password){
$result = $this->db->query("SELECT * FROM user WHERE username='$username' AND user_password=SHA2('$password', 224) LIMIT 1");
return $result;
}
}
View
View Login
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Form Login</title>
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
</head>
<body>
<br>
<div class="w3-container">
<div class="w3-row">
<div class="w3-col" style="width:30%"><p></p></div>
<div class="w3-col" style="width:40%">
<div class="w3-card-4">
<div class="w3-container w3-blue">
<h2>Silahkan Login</h2>
</div>
<form class="w3-container" method="POST" action="<?php echo site_url('login/auth');?>">
<p>
<label class="w3-text-blue"><b>Username</b></label>
<input class="w3-input w3-border w3-sand" name="username" type="text">
</p>
<p>
<label class="w3-text-blue"><b>Password</b></label>
<input class="w3-input w3-border w3-sand" name="pass" type="password">
</p>
<p>
<button class="w3-btn w3-blue">Masuk</button>
</p>
</form>
</div>
<div class="w3-panel w3-blue w3-display-container">
<?php echo $this->session->flashdata('msg');?>
</div>
</div>
<div class="w3-col" style="width:30%"><p></p></div>
</div>
</div>
</body>
</html>
View Home
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Home</title>
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
</head>
<body>
<div class="w3-bar w3-border w3-light-grey w3-card-4">
<a href="#" class="w3-bar-item w3-blue w3-button">Home</a>
<?php if($this->session->userdata('access')=='Administrator'){ ?>
<a href="#" class="w3-bar-item w3-button">Daftar Satu</a>
<a href="#" class="w3-bar-item w3-button">Daftar Dua</a>
<a href="#" class="w3-bar-item w3-button">Daftar Tiga</a>
<?php } if($this->session->userdata('access')=='User'){ ?>
<a href="#" class="w3-bar-item w3-button">Daftar Empat</a>
<?php }; ?>
<a href="<?php echo site_url('login/logout');?>" class="w3-bar-item w3-button w3-red w3-right">Keluar</a>
</div>
<div class="w3-container">
<h1>Hai <?php echo $this->session->userdata('name'); ?></h1>
<h3>Ini adalah halaman untuk <?php echo $this->session->userdata('access'); ?></h3>
</div>
</body>
</html>
