$userLanguage = $_SERVER['HTTP_ACCEPT_LANGUAGE'];


if (strpos($userLanguage, 'tr') === 0) {
  
    header('Location: http://example.com/tr');
    exit;
} elseif (strpos($userLanguage, 'en') === 0) {
   
    header('Location: http://example.com/en');
    exit;
} elseif (strpos($userLanguage, 'es') === 0) {
  
    header('Location: http://example.com/es');
    exit;
} else {
    
    header('Location: http://example.com/default');
    exit;
}