Login Example In CodeIgniter 4.

rajeshOctober 7, 2020

0 5,218 3 minutes read

In this example we will learn,how to develop a login form in CodeIgniter 4. Below are the steps to implement this , you need to simply follow below steps.

Download & Configure CodeIgniter 4 Application.

Download the fresh version of CodeIgniter from https://codeigniter.com/download and unzip this in your working directory and configure the base url in app/Config/App.php.

    public $baseURL = 'http://localhost:8080'; 
    To
    public $baseURL = 'http://localhost/crud/public';

Configure Database And Create Table.

In this step we will create database crud and table products in the crud database.

CREATE TABLE `user` (
 `id` int(11) NOT NULL AUTO_INCREMENT,
 `user_name` varchar(100) NOT NULL,
 `password` varchar(250) NOT NULL 
 PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1

Now update the database credential in app/Config/Database.php.

public $default = [
        'DSN'      => '',
        'hostname' => 'localhost',
        'username' => 'root',
        'password' => '',
        'database' => 'login',
        'DBDriver' => 'MySQLi',
        'DBPrefix' => '',
        'pConnect' => false,
        'DBDebug'  => (ENVIRONMENT !== 'production'),
        'cacheOn'  => false,
        'cacheDir' => '',
        'charset'  => 'utf8',
        'DBCollat' => 'utf8_general_ci',
        'swapPre'  => '',
        'encrypt'  => false,
        'compress' => false,
        'strictOn' => false,
        'failover' => [],
        'port'     => 3306,
    ];

Create Model.

The model is used to communicate with the user table. So create model LoginModel in the app/Models/ directory and put the below code.

<?php 
namespace App\Models;
use CodeIgniter\Model;

class LoginModel extends Model
{
        protected $table = 'user';         
}

Create Controller.

In this step we will create a controller named as LoginController. So create controller in the app/Controllers directory and put the below code .

<?php 
namespace App\Controllers;
use App\Models\LoginModel;
use CodeIgniter\Controller;

class LoginController extends Controller
{
    private $login = '' ;
    public function __construct(){
      
        $this->login = new LoginModel();       
    }
    
    // show login form
    public function index()	{  

        $session = session();  
        $session->setFlashdata('msg', '');
	return view('login');
    }      

    //check user is exist or not
    public function login(){
          
        $data = array('user_name'=>$this->request->getVar('user_id'),'password'=>md5($this->request->getVar('password')));       
        $user =  $this->login->where($data); 
        $rows = $this->login->countAllResults();
        $session = session();          
        if($rows==1){
            return view('success');
        }else{
            $session->setFlashdata('msg', 'Invalid User');
            return view('login');
        } 
     }
}

Add below code in route inside the app/Config/Routes.php.

$routes->get('/', 'LoginController::index');
$routes->post('login', 'LoginController::login');

Create Login View.

<html>
<head>
<style>
html {
  background-color: #56baed;
}
body {
  font-family: "Poppins", sans-serif;
  height: 100vh;
}
.wrapper {
  display: flex;
  align-items: center;
  flex-direction: column; 
  justify-content: center;
  width: 100%;
  min-height: 100%;
  padding: 20px;
}
#formContent {
  -webkit-border-radius: 10px 10px 10px 10px;
  border-radius: 10px 10px 10px 10px;
  background: #fff;
  padding: 30px;
  width: 90%;
  max-width: 450px;
  position: relative;
  padding: 0px;
  -webkit-box-shadow: 0 30px 60px 0 rgba(0,0,0,0.3);
  box-shadow: 0 30px 60px 0 rgba(0,0,0,0.3);
  text-align: center;
}
 
input[type=button], input[type=submit], input[type=reset]  {
  background-color: #56baed;
  border: none;
  color: white;
  padding: 15px 80px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  text-transform: uppercase;
  font-size: 13px;
  -webkit-box-shadow: 0 10px 30px 0 rgba(95,186,233,0.4);
  box-shadow: 0 10px 30px 0 rgba(95,186,233,0.4);
  -webkit-border-radius: 5px 5px 5px 5px;
  border-radius: 5px 5px 5px 5px;
  margin: 5px 20px 40px 20px;
  -webkit-transition: all 0.3s ease-in-out;
  -moz-transition: all 0.3s ease-in-out;
  -ms-transition: all 0.3s ease-in-out;
  -o-transition: all 0.3s ease-in-out;
  transition: all 0.3s ease-in-out;
}
 
input[type=text] {
  background-color: #f6f6f6;
  border: none;
  color: #0d0d0d;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 5px;
  width: 85%;
  border: 2px solid #f6f6f6;
  -webkit-transition: all 0.5s ease-in-out;
  -moz-transition: all 0.5s ease-in-out;
  -ms-transition: all 0.5s ease-in-out;
  -o-transition: all 0.5s ease-in-out;
  transition: all 0.5s ease-in-out;
  -webkit-border-radius: 5px 5px 5px 5px;
  border-radius: 5px 5px 5px 5px;
}
input[type=password] {
  background-color: #f6f6f6;
  border: none;
  color: #0d0d0d;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 5px;
  width: 85%;
  border: 2px solid #f6f6f6;
  -webkit-transition: all 0.5s ease-in-out;
  -moz-transition: all 0.5s ease-in-out;
  -ms-transition: all 0.5s ease-in-out;
  -o-transition: all 0.5s ease-in-out;
  transition: all 0.5s ease-in-out;
  -webkit-border-radius: 5px 5px 5px 5px;
  border-radius: 5px 5px 5px 5px;
}
input[type=text]:focus {
  background-color: #fff;
  border-bottom: 2px solid #5fbae9;
}
input[type=text]:placeholder {
  color: #cccccc;
}
.fadeInDown {
  -webkit-animation-name: fadeInDown;
  animation-name: fadeInDown;
  -webkit-animation-duration: 1s;
  animation-duration: 1s;
  -webkit-animation-fill-mode: both;
  animation-fill-mode: both;
}
@-webkit-keyframes fadeInDown {
  0% {
    opacity: 0;
    -webkit-transform: translate3d(0, -100%, 0);
    transform: translate3d(0, -100%, 0);
  }
  100% {
    opacity: 1;
    -webkit-transform: none;
    transform: none;
  }
}

 
} 
</style>
</head>
<body>
<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<div class="wrapper fadeInDown">
  <div id="formContent">
      <div class="fadeIn first">
    <i class="fa fa-sign-in" aria-hidden="true" style='font-size:50px'></i>
    </div>
    <span style='color:red;font-size:15px;'><?= session('msg');?></span>
     <form method="post"  action="<?= site_url('/login') ?>"> 
      <input type="text" id="user_id"  name="user_id" placeholder="User Name">
      <input type="password" id="password"  name="password" placeholder="Password">
      <input type="submit" value="Log In">
    </form>    
    <div id="formFooter">       
    </div>
  </div>
</div>
</body>
</html>

Create Success View.

<html>
<head> 
</head>
<body>
<div class="container">
	<div class="row text-center">
        <div class="col-sm-6 col-sm-offset-3">
        <br><br> <h2 style="color:#0fad00">Success</h2>
        </div>
	</div>
</body>
</html>

rajeshOctober 7, 2020

0 5,218 3 minutes read