Multi Language in CodeIgniter Framework

In application/language folder, create new language files as below:

Create new folder name english. In this folder, create new PHP file named content_lang.php as below:

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

$lang['message'] = 'Hello World';
?>

Create new folder name french. In this folder, create new PHP file named content_lang.php as below:

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

$lang['message'] = 'Bonjour tout le monde';

?>

Create new folder name german. In this folder, create new PHP file named content_lang.php as below:

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

$lang['message'] = 'Hallo Welt';

?>

In CodeIgniter Project, Open config.php file in config folder. Set value for base_url config as below:

$config['base_url'] = 'http://localhost:9092/LearnCodeIgniterWithRealApps/';

In CodeIgniter Project, Open autoload.php file in config folder. Add url helper to helper config as below:

$autoload['helper'] = array('url');

In CodeIgniter Project, Open autoload.php file in config folder. Add session library to libraries config as below:

$autoload['libraries'] = array('session');

Create new hook and config to run hook as below:

In CodeIgniter Project, Open config.php in config folder. Set value for enable_hooks config as below:

$config['enable_hooks'] = TRUE;

In CodeIgniter Project, Open hooks.php file in config folder. Define new hook as below:

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

$hook['post_controller_constructor'] = array(
    'class'    => 'LanguageLoader',
    'function' => 'initialize',
    'filename' => 'LanguageLoader.php',
    'filepath' => 'hooks'
);

Create new PHP file named LanguageLoader.php in application/hooks folder as below:

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

class LanguageLoader
{
    function initialize()
    {
        $ci = & get_instance();
        $ci->load->helper('language');
        $siteLang = $ci->session->userdata('site_lang');
        if ($siteLang) {
            $ci->lang->load('content', $siteLang);
        } else {
            $ci->lang->load('content', 'english');
        }
    }
}

Create new PHP file named demo.php in controllers folder as below:

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

class Demo extends CI_Controller
{

    public function __construct()
    {
        parent::__construct();
    }

    function index()
    {
        $this->session->set_userdata('site_lang', "english");
        $this->load->view('demo/index');
    }

    function switchLang($language = "")
    {
        $this->session->set_userdata('site_lang', $language);
        redirect('demo');
    }
}

In CodeIgniter Project, Open routes.php file in config folder. Set value for default_controller as below:

$route['default_controller'] = 'demo';

Create new folder named demo in views folder. In this folder, create new views as below:

Create new PHP file named index.php as below:

<?php defined('BASEPATH') or exit('No direct script access allowed'); ?>
<html>
	<head>
		<title>Language</title>
	</head>
	<body>

		<div style="margin:0 auto; text-align: center;">

            <a href="<?php echo site_url("demo/switchLang/english"); ?>">English</a> |
            <a href="<?php echo site_url("demo/switchLang/german"); ?>">German</a> |
            <a href="<?php echo site_url("demo/switchLang/french"); ?>">French</a>
            <br><br>
            <?php echo $this->lang->line('message'); ?>

        </div>

	</body>
</html>

Access index action in Demo controller with following url: http://localhost:9092/LearnCodeIgniterWithRealApps/demo/index

Output

Select English language

Output

Select French language

Output

Select German language

Output

I recommend you refer to the books below to learn more about the knowledge in this article:

Create Language Files

English Language File

French Language File

German Language File

Set BASE URL

AutoLoad Helpers

AutoLoad Libraries

Create Language Hook

Enable Hook

Define New Hook

Create LanguageLoader Class

Create Controller

Set Default Controller

Create View

Index View

Structure of CodeIgniter Project

Run Application

References

Create Language Files

English Language File

French Language File

German Language File

Set BASE URL

AutoLoad Helpers

AutoLoad Libraries

Create Language Hook

Enable Hook

Define New Hook

Create LanguageLoader Class

Create Controller

Set Default Controller

Create View

Index View

Structure of CodeIgniter Project

Run Application

References

Related Posts