Faisal Ahmed

First thing you need to do is install sentry using composer, as composer is now supported and comes with CI 3.1.

composer require cartalyst/sentry 2.0.*
composer require illuminate/database 4.0.*
composer require ircmaxell/password-compat 1.0.*

Then, enable composer based auto-loading in codeigniter from application/config/config.php. Since by default composer creates the vendor folder at the root we need to give the path to the auto-loader file.

$config['composer_autoload'] = 'vendor/autoload.php';

Also, you need to update application/config/database.php to use PDO driver and don’t forget to import the SQL onto your database to create the required tables. You will find the SQL dump at vendor/cartalyst/sentry/schema folder.

Now you are ready to use sentry, just add the following line at any controller you want to use the sentry object.

use Cartalyst\Sentry\Facades\CI\Sentry as Sentry;

A sample use-case can be –

<?php defined('BASEPATH') OR exit('No direct script access allowed');

use Cartalyst\Sentry\Facades\CI\Sentry as Sentry;

class Welcome extends MY_Controller {

	public function signup()
	{
		$sentry = Sentry::createSentry();
		$sentry->register(array(
		    'email'    => 'faisal@mailinator.com',
		    'password' => 'abcdefg'
		),true);
	}
}