命名空间为的未捕获异常

我正在读一本关于php的书，我发现这个脚本不起作用：

namespace woo'controller {
    // woo'controller'ApplicationHelper;
    class ApplicationHelper {
        function getOptions() {
            if (!file_exists("data/woo_options_not_there.xml")) {
                $r = new 'woo'base'AppException("Non riesco ad aprire il file<br>");
                throw new $r;
            }
            $options = simplexml_load_file("data/woo_options.xml");
            $dsn = (string) $options->dsn;
            print $dsn;
        }
    }
    $d = (new ApplicationHelper())->getOptions();
}
namespace woo'base {
    class AppException extends 'Exception {
    }
}

你能帮我吗？

这就是错误：

致命错误：C:''xamplep''htdocs''9781430260318_Chapter_12_Code''listing12.00.php:11堆栈跟踪：#0 C:''xamplep ''htdocs''9781430260328_Chapter _12_Code''listing12.00.php（20）：woo''controller''ApplicationHelper->getOptions（）#1｛main｝在第11行的C:''xampleP''htdocs ''9781430220318_CChapter_12_Code''listing11.00.php中抛出

try {
    $d = (new ApplicationHelper())->getOptions();
} catch('woo'base'AppException $err) {
    echo 'Error: ' . $err->getMessage();
}