我无法设置googletrans Cookie来设置默认语言（意大利语）。我的代码：
<html>
<body>
<?php
if(!isset($_COOKIE['googtrans']))
{
setcookie('googtrans', '/en/it', time()+3600, '/','.impiantild.it');
header("Location: www.impiantild.it"); //redirect to himself
}
?>
<div id="google_translate_element"></div><script type="text/javascript">
function googleTranslateElementInit() {
new google.translate.TranslateElement({pageLanguage: 'en', includedLanguages: 'ar,en,es,it,zh-TW', layout: google.translate.TranslateElement.InlineLayout.SIMPLE}, 'google_translate_element');
}
</script><script type="text/javascript" src="http://translate.google.com/translate_a/element.js?cb=googleTranslateElementInit"></script>
</body>
</html>