Error en multi idioma

[pato12]

Prueba haci:

Código php:

<?php
if(isset($_GET['lang'])||empty($_GET['lang'])){
    include("lang/en.php");
}else{
    $langs = array("en.php","es.php","pt-br.php");
    include("lang/".(in_array($_GET['lang'],$langs)?$langs[$_GET['lang']]:$langs[0]));
}  
?>
 

Suerte
Salu2