$handler->data['subject'] = str_ireplace("€", "€", $handler->data['subject']);
$handler->data['subject'] = filter_var($handler->data['subject'], FILTER_UNSAFE_RAW, FILTER_FLAG_STRIP_HIGH);
$handler->verify_subject();
a['subject'])
{
$handler->thread_update_data['subject'] = filter_var($handler->thread_update_data['subject'], FILTER_UNSAFE_RAW, FILTER_FLAG_STRIP_HIGH);
$handler->verify_subject();
}