Registration OR Signup system in Codeigniter 4 with Login

Registration OR Signup system in Codeigniter 4 with Login

The registration system on any website is the backbone, and every system has its registration system according to need. We will create the Registration/Signup system in Codeigniter 4 with Login.

Some third-party libraries/auth system in Codeigniter 4 is also available to embed that they have the beta version; that's why they are not considering the auth.

We will create the registration system in Codeigniter from scratch; you can easily understand how to do it.

Step 1: Download the Codeigniter 4 and configure the base_url. So go to the folder app/config/app.php and open it, set the base_url

public $baseURL = 'http://localhost/ci4signup/';

Step 2: Create a database named "ci4signup" and create the table.

CREATE TABLE `users` (
  `u_id` int(11) NOT NULL,
  `u_name` varchar(200) NOT NULL,
  `u_email` varchar(250) NOT NULL,
  `u_password` varchar(250) NOT NULL,
  `u_link` varchar(250) NOT NULL,
  `u_date` datetime NOT NULL,
  `u_updated` datetime DEFAULT NULL,
  `u_status` int(11) DEFAULT '0'
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

ALTER TABLE `users`
  ADD PRIMARY KEY (`u_id`);


ALTER TABLE `users`
  MODIFY `u_id` int(11) NOT NULL AUTO_INCREMENT;
COMMIT;

Step 3: Open your database.php file by going to app/config/database.php and connect the database in Codeigniter 4

public $default = [
    'DSN'      => '',
    'hostname' => 'localhost',
    'username' => 'root',
    'password' => '',
    'database' => 'ci4signup',
    '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,
  ];

Step 4: Create a controller named User and use the code below.

<?php
namespace App\Controllers;
use App\Models\ModUsers;
class User extends BaseController
{
    public function index()
    {
        echo 'user is wroking..';
    }

    public function register()
    {
        helper('form');
        $session = \Config\Services::session();
       $data['message'] = $session->getFlashdata('message');
        echo view('signup',$data);
    }

    public function newuser()
    {
        $myvalues = $this->validate(
            [
                'name'=>'required',
                'email'=>'required',
                'password'=>'required',
            ]
        );
        if (!$myvalues) {
            $this->register();
        }
        else{
            $myrequest = \Config\Services::request();
            $session = \Config\Services::session();

            $users = new ModUsers();
            helper('text');
            $data['u_name'] = $myrequest->getPost('name');
            $data['u_email'] = $myrequest->getPost('email');
            $data['u_password'] = $myrequest->getPost('password');
            $data['u_password'] = hash('md5',$data['u_password']);
            $data['u_link'] = random_string('alnum',20);

            $message = "Please activate the account ".anchor('user/activate/'.$data['u_link'],'Activate Now','');
            $checkAlreadyUser = $users->where('u_email',$data['u_email'])->findAll();
            if (count($checkAlreadyUser) > 0) {
                $session->setFlashdata('message','This email: ' . $data['u_email'] . ' already exist.');
                return redirect()->to(site_url('user/newuser'));
                //echo 'the email is already exist.';
            }
            else{
                $myNewUser = $users->insert($data);
                if ($myNewUser) {
                    $email = \Config\Services::email();
                    $email->setFrom('ci4signup@shekztech.com', 'Activate the account');
                    $email->setTo($data['u_email']);
                    $email->setSubject('Activate the account | shekztech.com');
                    $email->setMessage($message);
                    $email->send();
                    $email->printDebugger(['headers']);
                }
                else{
                    $session->setFlashdata('message','We have successfully create the account but we can\'t send you the email right now.');
                    return redirect()->to(site_url('user/newuser'));
                }
            }
            //die();


        }
    }

    public function activate($linkHere)
    {
        //echo $linkHere;
        $session = \Config\Services::session();
        $user = new ModUsers();
        $checkUserLink = $user->where('u_link',$linkHere)->findAll();
        if (count($checkUserLink) > 0) {
            $data['u_status'] = 1;
            $data['u_link'] = $checkUserLink[0]['u_link'].'ok';
            $activateUser = $user->update($checkUserLink[0]['u_id'],$data);
            if ($activateUser) {
                $session->setFlashdata('message','We have successfully activate your account.');
                return redirect()->to(site_url('user/newuser'));
            }
            else{
                $session->setFlashdata('message','Your link is not available in the system, please check your email address and try again.');
                return redirect()->to(site_url('user/newuser'));
            }
        }
        else{
            $session->setFlashdata('message','Something went wrong.');
            return redirect()->to(site_url('user/newuser'));
        }
       // var_dump($checkUserLink);
    }

    public function signin()
    {
        $session = \Config\Services::session();
        $data['message'] = $session->getFlashdata('message');
        helper('form');
        echo view('signin',$data);
    }

    public function checkuser()
    {
        $myrequest = \Config\Services::request();
        $session = \Config\Services::session();

        $myvalues = $this->validate(
            [
                'email'=>'required',
                'password'=>'required',
            ]
        );
        if (!$myvalues) {
            $this->signin();
        }
        else{
            $users = new ModUsers();
            helper('text');
            $data['u_email'] = $myrequest->getPost('email');
            $data['u_password'] = $myrequest->getPost('password');
            $data['u_password'] = hash('md5',$data['u_password']);
            $allUsers = $users->where('u_email',$data['u_email'])->findAll();
            if (count($allUsers) > 0) {
                if ($data['u_password'] == $allUsers[0]['u_password']) {
                    $sessionData['u_id'] = $allUsers[0]['u_id'];
                    $sessionData['u_name'] = $allUsers[0]['u_name'];
                    $sessionData['u_email'] = $allUsers[0]['u_email'];
                    $sessionData['u_date'] = $allUsers[0]['u_date'];
                    $sessionData['u_updated'] = $allUsers[0]['u_updated'];
                    $sessionData['u_status'] = $allUsers[0]['u_status'];
                    $session->set($sessionData);
                    if ($session->get('u_id')) {
                       return  redirect()->to(site_url('home'));
                    }
                    else{
                        $session->setFlashdata('message','You can\'t signin, please try again.');
                        return redirect()->to(site_url('user/signin'));
                    }
                }
                else{
                    $session->setFlashdata('message','The password is invalid, please check your password.');
                    return redirect()->to(site_url('user/signin'));
                }
            }else{
                $session->setFlashdata('message','The user is not available in the system.');
                return redirect()->to(site_url('user/signin'));
            }
        }
    }

    public function signout()
    {
        $session = \Config\Services::session();
        $session->destroy();
        return redirect()->to(site_url('user/signin'));
    }
}//class here

Step 4: Create a model named ModUsers and use the code below.

<?php
namespace App\Models;
use CodeIgniter\Model;
class ModUsers extends Model
{
    protected $DBGroup = 'default';
    protected $table = 'users';
    protected $primaryKey = 'u_id';
    protected $returnType = 'array';
    protected $useTimestamps = true;
    protected $allowedFields = ['u_name','u_email','u_password','u_link','u_status'];
    protected $createdField = 'u_date';
    protected $updatedField = 'u_updated';

}

Step 5: This is an email configuration file in Codeigniter 4 to send the email from the localhost environment.

<?php
namespace Config;

use CodeIgniter\Config\BaseConfig;

class Email extends BaseConfig
{

  public $fromEmail;
  public $fromName;
  public $recipients;
  public $userAgent = 'CodeIgniter';
  public $protocol = 'smtp';
  public $mailPath = '/usr/sbin/sendmail';
  public $SMTPHost='mail.shekztech.com';
  public $SMTPUser = 'ci4signup@shekztech.com';
  public $SMTPPass = 'YourPasswordHere';
  public $SMTPPort = 587;
  public $SMTPTimeout = 15;
  public $SMTPKeepAlive = false;
  public $SMTPCrypto = 'tls';
  public $wordWrap = true;
  public $wrapChars = 76;
  public $mailType = 'html';
  public $charset = 'UTF-8';
  public $validate = false;
  public $priority = 3;
  public $CRLF = "\r\n";
  public $newline = "\r\n";
  public $BCCBatchMode = false;
  public $BCCBatchSize = 200;
  public $DSN = false;

}

Step 6: Create a view named signup and use the code below.

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Register a New </title>
</head>
<body>
    <?php if (isset($message) && !empty($message)):
        echo $message;
    ?>

    <?php endif; ?>
    <?php echo \Config\Services::validation()->listErrors()?>
    <?php echo form_open('user/newuser'); ?>
        <p>
            Enter your name <?php echo form_input('name','',''); ?>
        </p>

        <p>
            Enter your email <?php echo form_input('email','',''); ?>
        </p>

        <p>
            Enter your password <?php echo form_password('password','',''); ?>
        </p>
        <p>
            <?php echo form_submit('mybutton','Create Now',''); ?>
        </p>
    <?php form_close(); ?>
</body>
</html>

Step 7: Create another view for the sign-in form.

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Register a New </title>
</head>
<body>
<?php if (isset($message) && !empty($message)):
    echo $message;
    ?>

<?php endif; ?>
<?php echo \Config\Services::validation()->listErrors()?>
<?php echo form_open('user/checkuser'); ?>
<p>
    Enter your email <?php echo form_input('email','',''); ?>
</p>

<p>
    Enter your password <?php echo form_password('password','',''); ?>
</p>
<p>
    <?php echo form_submit('mybutton','Login Now',''); ?>
</p>
<?php form_close(); ?>
</body>
</html>

Step 8: Create a controller named home.

<?php namespace App\Controllers;

class Home extends BaseController
{
  public function index()
  {
        $session = \Config\Services::session();
        $checkUser = $session->get('u_id');
    //return view('welcome_message');
        if ($checkUser) {
            echo 'welcome: ' . $session->get('u_name');
        }
        else{
            echo 'redirect here...';
        }
  }

}

Download the source code