function searchTutorialByName($tutoname)
{
    global $db;
    $query = $db->write_query("SELECT subject, tid, threadprefix.prefix FROM mybb_threads AS thread, mybb_threadprefixes AS threadprefix WHERE pid=thread.prefix AND subject LIKE '%". $tutoname . "%'");

    $tid = [];
    $prefix = [];
    $subject = [];
    while($result = $db->fetch_array($query)) {
        $subject[] = $result['subject'];
        $tid[] = $result['tid'];
        $prefix[] = $result['prefix'];
    }

    $data = array(
        "prefix" => $prefix,
        "subject" => $subject,
        "tid" => $tid
    );

    return json_encode($data, JSON_UNESCAPED_UNICODE);

    /*$data = array(
        "tutorial" => []
    );*/

    /*for ($i = 0; $i < count($prefix); $i++) {
        if (array_key_exists($prefix[$i], $data["tutorial"])) {
            $new_tid = $data["tutorial"][$prefix[$i]];
            $new_tid[$subject[$i]] = $tid[$i];

            $data["tutorial"] = array_replace($data["tutorial"],
                array_fill_keys(
                    array_keys($data["tutorial"], $data["tutorial"][$prefix[$i]]),
                    $new_tid
                )
            );
        } else {
            $data["tutorial"][$prefix[$i]] = array($subject[$i] => $tid[$i]);
        }
    }

    return json_encode($data,  JSON_UNESCAPED_UNICODE);*/
}