<?php
$output = shell_exec('locale -a');
echo $output;
?>

sv_SE
sv_SE.iso88591
sv_SE.iso885915
sv_SE.utf8
swedish

($config['locale'] = '';)

function language_user_setting( $hls )
{
   $browser_langs = array();

   // Check if we have $_SERVER['HTTP_ACCEPT_LANGUAGE'] set and
   // it no longer breaks if you only have one language set :)
   if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
      $browser_accept = explode(",", $_SERVER['HTTP_ACCEPT_LANGUAGE']);

      // Go through all language preference specs
      for ($i = 0; $i < count($browser_accept); $i++) {
         // The language part is either a code or a code with a quality
         // We cannot do anything with a * code, so it is skipped
         // If the quality is missing, it is assumed to be 1 according to the RFC
         if (preg_match("!([a-z-]+)(;q=([0-9\\.]+))?!", trim($browser_accept[$i]), $found)) {
            $quality = (isset($found[3]) ? (float) $found[3] : 1.0);
            $browser_langs[] = array($found[1], $quality);
         }
         unset($found);
      }
   }

   // Order the codes by quality
   usort($browser_langs, "language_accept_order");

   $t_hls = transform_language_arr($hls);

   foreach($browser_langs as $browser_lang)
   {
      $language = trim($browser_lang[0]);
      if (strlen($language) == 2)
      {
         $language = strtolower($language);
         if (in_array($language, array_keys($t_hls))) return $t_hls["$language"];
      }
      else
      {
         // Check if $language in config
         $language = strtolower(substr($language, 0, 2)) .'_'. strtoupper(substr($language, 3, 2));
         if (in_array($language, array_keys($hls))) return $language;
      }
   }

   return DEFAULT_LANG;
}