CodeIgniter 2.1 internationalization i18n

[b]Internationalization (i18n) for CodeIgniter 2.x[/b] is small modification to: [url]http://maestric.com/doc/php/codeigniter_i18n[/url] to work with CodeIgniter 2.1.

1. Create [b]application/core/MY_Lang.php[/b]: [code] <?php (defined('BASEPATH')) OR exit('No direct script access allowed');

// Originaly CodeIgniter i18n library by Jérôme Jaglale // http://maestric.com/en/doc/php/codeigniter_i18n // modification by Yeb Reitsma

/* in case you use it with the HMVC modular extension uncomment this and remove the other lines load the MX_Loader class */

//require APPPATH."third_party/MX/Lang.php";

//class MY_Lang extends MX_Lang {

class MY_Lang extends CI_Lang {

/**************************************************
 configuration
***************************************************/

// languages
private $languages = array(
    'en' => 'english',
    'de' => 'german',
    'fr' => 'french',

'nl' => 'dutch' );

// special URIs (not localized)
private $special = array (
    "admin"
);

// where to redirect if no language in URI
private $uri;
private $default_uri;
private $lang_code;

/**************************************************/


function MY_Lang()
{
    parent::__construct();
    
    global $CFG;
    global $URI;
    global $RTR;
    
    $this->uri = $URI->uri_string();
    $this->default_uri = $RTR->default_controller;
    
    $uri_segment = $this->get_uri_lang($this->uri);
    $this->lang_code = $uri_segment['lang'] ;
    
    $url_ok = false;
    if ((!empty($this->lang_code)) && (array_key_exists($this->lang_code, $this->languages)))
    {
        $language = $this->languages[$this->lang_code];
        $CFG->set_item('language', $language);
        $url_ok = true;
    }
    
 if ((!$url_ok) && (!$this->is_special($uri_segment['parts'][0]))) // special URI -> no redirect
 {
  // set default language
  $CFG->set_item('language', $this->languages[$this->default_lang()]);
  
  $uri = (!empty($this->uri)) ? $this->uri: $this->default_uri;
      $uri = ($uri[0] != '/') ? '/'.$uri : $uri;
  $new_url = $CFG->config['base_url'].$this->default_lang().$uri;
  
  header("Location: " . $new_url, TRUE, 302);
  exit;
 }
}



// get current language
// ex: return 'en' if language in CI config is 'english' 
function lang()
{
    global $CFG;        
    $language = $CFG->item('language');
    
    $lang = array_search($language, $this->languages);
    if ($lang)
    {
        return $lang;
    }
    
    return NULL;    // this should not happen
}


function is_special($lang_code)
{
    if ((!empty($lang_code)) && (in_array($lang_code, $this->special)))
        return TRUE;
    else
        return FALSE;
}


function switch_uri($lang)
 {
     if ((!empty($this->uri)) && (array_key_exists($lang, $this->languages)))
     {

      if ($uri_segment = $this->get_uri_lang($this->uri))
      {
       $uri_segment['parts'][0] = $lang;
       $uri = implode('/',$uri_segment['parts']);
      }
      else
      {
       $uri = $lang.'/'.$this->uri;
      }
     }

     return $uri;
 }

//check if the language exists //when true returns an array with lang abbreviation + rest function get_uri_lang($uri = '') { if (!empty($uri)) { $uri = ($uri[0] == '/') ? substr($uri, 1): $uri;

  $uri_expl = explode('/', $uri, 2);
  $uri_segment['lang'] = NULL;
  $uri_segment['parts'] = $uri_expl;  
  
  if (array_key_exists($uri_expl[0], $this->languages))
  {
   $uri_segment['lang'] = $uri_expl[0];
  }
  return $uri_segment;
 }
 else
  return FALSE;
}


// default language: first element of $this->languages
 function default_lang()

{ $browser_lang = !empty($_SERVER['HTTP_ACCEPT_LANGUAGE']) ? strtok(strip_tags($_SERVER['HTTP_ACCEPT_LANGUAGE']), ',') : ''; $browser_lang = substr($browser_lang, 0,2); return (array_key_exists($browser_lang, $this->languages)) ? $browser_lang: 'en'; }

// add language segment to $uri (if appropriate)
function localized($uri)
{
 if (!empty($uri))
 {
  $uri_segment = $this->get_uri_lang($uri);
  if (!$uri_segment['lang'])
  {

   if ((!$this->is_special($uri_segment['parts'][0])) && (!preg_match('/(.+)\.[a-zA-Z0-9]{2,4}$/', $uri)))
   {
             $uri = $this->lang() . '/' . $uri;
            }
        }
 }
    return $uri;
}

}

// END MY_Lang Class

/* End of file MY_Lang.php / / Location: ./application/core/MY_Lang.php */ [/code]

2. Create [b]application/core/MY_Config.php[/b] : [code] <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

// CodeIgniter i18n library by Jérôme Jaglale // http://maestric.com/en/doc/php/codeigniter_i18n // version 6 - April 20, 2009

class MY_Config extends CI_Config {

function site_url($uri = '')
{    
    if (is_array($uri))
    {
        $uri = implode('/', $uri);
    }
    
    if (function_exists('get_instance'))        
    {
        $CI =& get_instance();
        $uri = $CI->lang->localized($uri);
        $uri = substr($uri, 2);            
    }

    return parent::site_url($uri);
}

} // END MY_Config Class

/* End of file MY_Config.php / / Location: ./application/libraries/MY_Config.php */ [/code]

I hope it helps!

[b]Original instructions[/b]: [url]http://maestric.com/doc/php/codeigniter_i18n[/url]

Category:Internationalization Category:Core::Language Category:Libraries::Internationalization Category:Libraries::Language