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How to implement Multi-Language in CodeIgniter

Multi-language support or internationalization is an important feature of web applications. Most of PHP frameworks comes with multi-language support to add functionality using existing class and functions.

File Name :

Site Default Language

config.php

Creating Language Files

Create multiple language files and insert those files into the application/language/ directory with separate sub-directories for each language (for example, english, french, german, hindi, etc.).

English

application/language/english/header_lang.php

<?php
// title
$lang['text_title_header'] = 'Welcome to Itechxpert';
$lang['text_name_header'] = 'itechxpert';

// Main Menu
$lang['text_menu_home_header'] = 'Home';
$lang['text_menu_demo_header'] = 'Live Demo';
$lang['text_menu_tutorials_header'] = 'Tutorials';
$lang['text_menu_contact_header'] = 'Contact';
?>

application/language/english/content_lang.php

<?php
$lang['text_content'] = 'There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form, by injected humour, or randomised words which don`t look even slightly believable. If you are going to use a passage of Lorem Ipsum, you need to be sure there isn`t anything embarrassing hidden in the middle of text. All the Lorem Ipsum generators on the Internet tend to repeat predefined chunks as necessary, making this the first true generator on the Internet. It uses a dictionary of over 200 Latin words, combined with a handful of model sentence structures, to generate Lorem Ipsum which looks reasonable. The generated Lorem Ipsum is therefore always free from repetition, injected humour, or non-characteristic words etc';
?>

application/language/english/footer_lang.php

<?php
$lang['text_copyright_footer'] = 'Copyright © itechxpert '.date('Y').'. All Rights Reserved';
?>

Hindi

application/language/hindi/header_lang.php

<?php
// title
$lang['text_title_header'] = 'itechxpert में आपका स्वागत है';
$lang['text_name_header'] = 'itechxpert';

// Main Menu
$lang['text_menu_home_header'] = 'घर';
$lang['text_menu_demo_header'] = 'लाइव डेमो';
$lang['text_menu_tutorials_header'] = 'ट्यूटोरियल';
$lang['text_menu_contact_header'] = 'संपर्क करें';

?>

application/language/hindi/content_lang.php

<?php
$lang['text_content'] = 'Lorem Ipsum के कई अंश उपलब्ध हैं, परन्तु अधिकांश लोगों को इंजेक्शन वाले हास्य या कुछ यादृच्छिक शब्दों से कुछ रूप में परिवर्तन हुआ है, जो कुछ भी विश्वसनीय नहीं लगते। यदि आप Lorem Ipsum के एक मार्ग का उपयोग करने जा रहे हैं, तो आपको यह सुनिश्चित करने की आवश्यकता है कि टेक्स्ट के मध्य में छिपे हुए कोई भी शर्मनाक नहीं है। इंटरनेट पर सभी लॉर्म Ipsum जनरेटर के रूप में आवश्यक पूर्वनिर्धारित विखंडन दोहराने के लिए होते हैं, जिससे इंटरनेट पर यह पहला सच्चा जनरेटर बना। यह 200 से अधिक लैटिन शब्दों के एक शब्दकोश का उपयोग करता है, जो कि कुछ बुनियादी वाक्य संरचनाओं के साथ मिलकर, Lorem Ipsum उत्पन्न करता है जो उचित लगता है। उत्पन्न Lorem Ipsum इसलिए हमेशा पुनरावृत्ति, इंजेक्शन हास्य, या गैर-विशिष्ट शब्द आदि से मुक्त है';
?>

application/language/hindi/footer_lang.php

<?php
$lang['text_copyright_footer'] = 'कॉपीराइट © itechxpert'.date('Y').'. सर्वाधिकार सुरक्षित';
?>

enable hooks

enable the hooks feature in application/config/config.php file.

<?php
$config['enable_hooks'] = TRUE;
?>

Create Hooks

<?php

class MultiLanguageLoader
{
function initialize() {
$ci =& get_instance();
// load language helper
$ci->load->helper('language');
$siteLang = $ci->session->userdata('site_lang');
if ($siteLang) {
// difine all language files
$ci->lang->load('header',$siteLang);
$ci->lang->load('content',$siteLang);
$ci->lang->load('footer',$siteLang);
} else {
// default language files
$ci->lang->load('header','english');
$ci->lang->load('content','english');
$ci->lang->load('footer','english');
}
}
}
?>

Open application/config/hooks.php file and define a hook.

<?php
// create hook for multi langunage
$hook['post_controller_constructor'] = array(
'class' => 'MultiLanguageLoader',
'function' => 'initialize',
'filename' => 'MultiLanguageLoader.php',
'filepath' => 'hooks'
);
?>

Before starting to implement multilingual features, open the application/config/autoload.php

<?php
// load libraries
$autoload['libraries'] = array('session');
// load helper
$autoload['helper'] = array('url');
?>

Create a controller file for handing the language switch

Create a controller file named “MultiLanguageSwitcher.php” inside “application/controllers” folder.

<?php

if (!defined('BASEPATH'))
exit('No direct script access allowed');

class MultiLanguageSwitcher extends CI_Controller
{
public function __construct() {
parent::__construct();
}
// create language Switcher method
function switch($language = "") {
$language = ($language != "") ? $language : "english";
$this->session->set_userdata('site_lang', $language);
redirect($_SERVER['HTTP_REFERER']);
}
}
?>

Create a controller file

Create a controller file named Home.php” inside “application/controllers” folder.

<?php

if (!defined('BASEPATH'))
exit('No direct script access allowed');

class Home extends CI_Controller {

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

}
//
public function index() {
$data = array();
$data['metaDescription'] = 'Multi-Language implementation in CodeIgniter';
$data['metaKeywords'] = 'Multi-Language implementation in CodeIgniter';
$data['title'] = "Multi-Language implementation in CodeIgniter - TECHARISE";
$this->load->view('home/index', $data);
}
}
?>

Add dropdown your template file

<select class="form-control" onchange="javascript:window.location.href='<?php echo base_url(); ?>multilanguageswitcher/switch/'+this.value;">
<option value="english" <?php if($this->session->userdata('site_lang') == 'english') echo 'selected="selected"'; ?>>English</option>
<option value="hindi" <?php if($this->session->userdata('site_lang') == 'hindi') echo 'selected="selected"'; ?>>Hindi</option>
<option value="french" <?php if($this->session->userdata('site_lang') == 'french') echo 'selected="selected"'; ?>>French</option>
<option value="german" <?php if($this->session->userdata('site_lang') == 'german') echo 'selected="selected"'; ?>>German</option>
</select>

Create a view

Create a view file named “index.php” inside “application/views/ folder.

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<title><?php echo $this->lang->line('text_title_header'); ?></title>

<link href="<?php echo HTTP_VENDOR_PATH; ?>bootstrap/css/bootstrap.min.css" rel="stylesheet">
<link type="text/css" rel="stylesheet" media="all" href="<?php echo HTTP_VENDOR_PATH; ?>galleyZoom/fancybox/source/jquery.fancybox.css"/>

<link href="<?php echo HTTP_CSS_PATH; ?>style.css" rel="stylesheet">

</head>

<body>


<nav class="navbar navbar-expand-lg navbar-dark fixed-top" style="background-color: #3B5998;">
<span>

<select class="form-control" onchange="javascript:window.location.href='<?php echo base_url(); ?>multilanguageswitcher/switch/'+this.value;">
<option value="english" <?php if($this->session->userdata('site_lang') == 'english') echo 'selected="selected"'; ?>>English</option>
<option value="hindi" <?php if($this->session->userdata('site_lang') == 'hindi') echo 'selected="selected"'; ?>>Hindi</option>
<option value="french" <?php if($this->session->userdata('site_lang') == 'french') echo 'selected="selected"'; ?>>French</option>
<option value="german" <?php if($this->session->userdata('site_lang') == 'german') echo 'selected="selected"'; ?>>German</option>
</select>
</span>
<div class="container">
<a class="navbar-brand" href="<?php echo site_url(); ?>"><?php echo $this->lang->line('text_name_header'); ?></a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ml-auto">
<li class="nav-item active">
<a class="nav-link" href="#"><?php echo $this->lang->line('text_menu_home_header'); ?>
<span class="sr-only">(current)</span>
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#"><?php echo $this->lang->line('text_menu_demo_header'); ?></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#"><?php echo $this->lang->line('text_menu_tutorials_header'); ?></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#"><?php echo $this->lang->line('text_menu_contact_header'); ?></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#"> </a>
</li>

</ul>
</div>
</div>
</nav>
<div class="container">
<div class="row">
<div class="col-lg-12">
<?php echo $this->lang->line('text_content'); ?>
</div>
</div>
</div>

<footer class="py-2" style="background-color: #3B5998;">
<div class="container">
<p class="m-0 text-center text-white"><?php echo $this->lang->line('text_copyright_footer'); ?></p>
</div>

</footer>

<script>var url = "<?php echo site_url(); ?>";</script>

<script src="<?php echo HTTP_VENDOR_PATH; ?>jquery/jquery.min.js"></script>
<script src="<?php echo HTTP_VENDOR_PATH; ?>popper/popper.min.js"></script>
<script src="<?php echo HTTP_VENDOR_PATH; ?>bootstrap/js/bootstrap.min.js"></script>
</body>
</html>

Link

Itechtuto