public function detectLanguage()
{
$input = Input::getInstance('SERVER');
//strstr()需要PHP5.3.0以上版本支持第三个参数，如果找不到，返回false
$language = strstr($input->get('LANG', ''), '.', true);
if (empty($language)) {
$accept = $input->get('HTTP_ACCEPT_LANGUAGE', '');
preg_match_all('/([a-z]{2}\\-?[A-Z]{0,2})/', $accept, $matches);
foreach ($matches[0] as $language) {
$language = str_replace('-', '_', $language);
if (file_exists($this->locale_dir . '/' . $language)) {
break;
}
}
}
return $language;
}
public static function getClientIP()
{
return Input::getClientIP();
}