How can i implement language switch through the button click?

Question

The config file loads first and so the default language is picked from there. But I need to change the default language dynamically through button click. How can I do that? In my controller I have

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

        $this->config->set_item('language', 'japanese');
        $this->load->helper('language');
        $this->lang->load('fileimport');
        var_dump(lang('message_missing_csvfile_import'));

    }

This will display the value in japanese language

config.php is as follows:

$config['language'] = 'english';

autoload.php is as follows:

$autoload['language'] = array(
    'application'
);

My view is as follows:

<form action ='<?php echo current_url(); ?>' enctype =
 'multipart/form-data' method ='post' name="formtest" id="formtest">

             <div>
                 <select id="main_language" name ="main_language">
                     <option>English</option>
                   <option>Japanese</option>
                </select>
                <input id="main_lang_button" type="button" value="Set Main Language">
            </div></form>

Narf · Accepted Answer · 2017-09-19 10:18:52Z

2

When you get the value from the form, put it in a cookie. Something like that:

/* form validation here */

// ...

// After you know it's a valid value:
setcookie('language', $_POST['main_language'], 0, '/');

Then use that cookie in your application/config/config.php:

$allowed_languages = array('English', 'Japanese');
if (isset($_COOKIE['language']) && in_array($_COOKIE['language'], $allowed_languages, true)) {
    $config['language'] = strtolower($_COOKIE['language']);
} else {
    $config['language'] = 'english';
}

Note that you need to validate the cookie as well. It is still user input, regardless of the fact that you set it.

Of course, this configuration will default to 'english' on the request that you're still processing the form. Just make sure to do a redirect after you set the cookie, and you'll get around that issue.

answered Sep 19, 2017 at 10:18

Narf

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2 Comments

Programmer Over a year ago

how can I use sessions instead of cookies?

Narf Over a year ago

You shouldn't use sessions for this, and it would be much more complicated.

NikuNj Rathod · Accepted Answer · 2017-09-19 11:37:18Z

1

You can try this solution for your problem.

Please change your My_controller for Language changes.

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

class MY_Controller extends CI_Controller {

    public function __construct() {
        parent::__construct();
        if(!$this->session->userdata('language')) {
            $this->session->set_userdata('language','japanese');
        }
        $this->lang->load('language_name',$this->session->userdata('language'));
    }
} ?>

You can add set session for language Any your controller for ex. Dashboard Controller.

<?php 
defined('BASEPATH') OR exit('No direct script access allowed');
class Dashboard extends CI_Controller {
   public function change_language($lang = 'japasese') {
        if($this->input->is_ajax_request()) {
            $this->session->set_userdata('language',(($lang=='japasese') ? 'japasese' : 'english'));
            echo true;
        } else {
            redirect('login');
        }
    }
} ?>

You can set your view file like

<form action ='#' enctype ='multipart/form-data' method ='post' name="formtest" id="formtest">
    <select id="main_language" name ="main_language">
        <option value="english">English</option>
        <option value="japasese">Japanese</option>
    </select>
</form>

Add Scrip file.

<script type="text/javascript">
    base_url = '<?=base_url()?>';
    $(document).on('change', '#main_language', function () {
        lang = $('#main_language').val();
        $.ajax
         ({
             'type': 'GET',
             'url': base_url + 'dashboard/change_language/'+lang,
             'success': function(response){
                 window.location.reload();
             }
         });
    });
</script>

I hope this will helps you.

edited Sep 19, 2017 at 11:37

answered Sep 19, 2017 at 10:38

NikuNj Rathod

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7 Comments

Programmer Over a year ago

I tried this ..but still it displays english instead of japanese

NikuNj Rathod Over a year ago

you can first check your session for language after you can check which language file is load.

Programmer Over a year ago

echo $this->session->userdata('language')is only displaying english even if i choose japanese from select box

NikuNj Rathod Over a year ago

please check your ajax request to change language.

Programmer Over a year ago

alert(lang); inside ajax success is displaying english and japanese based on selection

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