$errors[] = 'Invalid Board Name';
}
if (preg_match('/^[A-Za-z0-9-_]+$/', $_POST['keyword'])) {
$keyword = trim($_POST['keyword']);
} else {
$errors[] = 'Invalid Keyword';
}
if (empty($errors)) {
// initate objects
$spider = new spider();
$threadFinder = new threadFinder();
// parameters
$board = $boardname;
$searchkeyword = $keyword;
// get threads from specified board
$threadFinder->threads = $spider->getThreads($board);
$threadsFound = $threadFinder->getBySubject($searchkeyword);
if ($threadsFound) {
// processing
if (count($threadsFound) == 1) {
// just one, we got what we need!
$threadID = $threadsFound[0];
$threadLink = 'http://boards.4chan.org/' . $board . '/thread/' . $threadID;
} else {
if (count($threadsFound) > 1) {
// multiple threads
// ID => UNIX time
$findLatest = array();
foreach ($threadsFound as $tid) {
$td = $threadFinder->getById($tid);
if (isset($td->last_replies) && !empty($td->last_replies)) {
