[PHP] tworzenie strony wielojęzycznej Opcje

[--free--]

Witam,


Potrzebuje zrobić stronkę wielojęzyczną.
Znalazłem przykład na necie i stworzyłem

w pliku index.php

[PHP] pobierz, plaintext 
<?php
    error_reporting(E_ALL);
    ini_set('display_errors','1');
    session_start();
    require('langs/lang.class.php');
 __('main_page');
?>
[PHP] pobierz, plaintext 

w folderze /langs są pliki

lang.class.php

[PHP] pobierz, plaintext 
<?php
 
class Lang
{
  private $languages = array('pl' => 'Polski', 'en' => 'English');
  private $current_language = FALSE;
  private $lines = array();
 
  private static $instance = FALSE;
 
  public function __construct()
{
  $this->set_language();
}
  public function instance()
{
  if(self::$instance == FALSE)
  {
    self::$instance = new Lang;
  }
 
  return self::$instance;
}
  private function set_language()
{
  if(isset($_GET['lang']) AND array_key_exists(($lang = strtolower($_GET['lang'])), $this->languages))
  {
    $this->current_language = $lang;
    $_SESSION['site_lang'] = $lang;
  }
  elseif(isset($_SESSION['site_lang']) AND array_key_exists(($lang = strtolower($_SESSION['site_lang'])), $this->languages))
  {
    $this->current_language = $lang;
  }
  else
  {
    $this->current_language = $this->default_language();
  }
 
  $this->load_lang_file();
}
  private function default_language()
{
  return current(array_keys($this->languages));
}
  private function load_lang_file()
{
  if(file_exists('langs/'.$this->current_language.'.php'))
  {
    include 'langs/'.$this->current_language.'.php';
 
    $this->lines = $lang;
  }
}
public static function line($name = FALSE, $params = array())
{
  if(isset(self::instance()->lines[$name]))
    return vsprintf(self::instance()->lines[$name], $params);
 
  return FALSE;
}
public static function get_language()
{
  return self::instance()->current_language;
}
 
public static function get_languages()
{
  return self::instance()->languages;
}
function __($name = FALSE, $params = array())
{
  return Lang::line($name, $params);
}
}
[PHP] pobierz, plaintext 

oraz pliki pl.php oraz en.php

gdzie są wpisy :
<?php
$lang['main_page'] = 'Strona główna';
?>


po wywołaniu strony index.php jest błąd :


Fatal error: Call to undefined function __() in C:\Program Files\WebServ\httpd-users\tg\index.php on line 12




Serwer HTTP: Apache/2.2.6 (Win32) PHP/5.2.5

[-test-]

zmieniłem na :

[PHP] pobierz, plaintext 
<?php
 
class Lang
{
  private $languages = array('pl' => 'Polski', 'en' => 'English');
  private $current_language = FALSE;
  private $lines = array();
 
  private static $instance = FALSE;
 
     public function __construct()
       {
          $this->set_language();
       }
 
     public function instance()
       {
          if(self::$instance == FALSE)
           {
             self::$instance = new Lang;
           }
 
          return self::$instance;
       }
      private function set_language()
       {
           if(isset($_GET['lang']) AND array_key_exists(($lang = strtolower($_GET['lang'])), $this->languages))
             {
                $this->current_language = $lang;
                $_SESSION['site_lang'] = $lang;
             }
           elseif(isset($_SESSION['site_lang']) AND array_key_exists(($lang = strtolower($_SESSION['site_lang'])), $this->languages))
             {
                $this->current_language = $lang;
             }
           else
             {
                $this->current_language = $this->default_language();
             }
 
                $this->load_lang_file();
         }
       private function default_language()
         {
           return current(array_keys($this->languages));
         }
       private function load_lang_file()
         {
            if(file_exists('langs/'.$this->current_language.'.php'))
              {
                 include 'langs/'.$this->current_language.'.php';
 
                 $this->lines = $lang;
               }
          }
       public static function line($name = FALSE, $params = array())
          {
           if(isset(self::instance()->lines[$name]))
               return vsprintf(self::instance()->lines[$name], $params);
 
               return FALSE;
          }
       public static function get_language()
          {
            return self::instance()->current_language;
          }
 
       public static function get_languages()
          {
              return self::instance()->languages;
    }
}
       function __($name = FALSE, $params = array())
          {
       return Lang::line($name, $params);
          }
[PHP] pobierz, plaintext 

błądu nie ma ale jest cyzsta strona tekst sie nie wyświetił