EngineGP/system/library/cron/notice_help.php

<?php
    if(!DEFINED('EGP'))
        exit(header('Refresh: 0; URL=http://'.$_SERVER['SERVER_NAME'].'/404'));

    class notice_help extends cron
    {
        function __construct()
        {
            global $cfg, $sql, $start_point;

            $time = $start_point-3600;

            $helps = $sql->query('SELECT `id`, `user`, `time` FROM `help` WHERE `status`="0" AND `time`<"'.$time.'" AND `notice`="0" AND `close`="0"');
            while($help = $sql->get($helps))
            {
                $sql->query('SELECT `mail` FROM `users` WHERE `id`="'.$help['user'].'" AND `time`<"'.$help['time'].'" AND `notice_help`="1" LIMIT 1');

                if(!$sql->num())
                    continue;

                $user = $sql->get();

                if(!sys::mail('Техническая поддержка', sys::updtext(sys::text('mail', 'notice_help'), array('site' => $cfg['name'], 'url' => $cfg['http'].'help/section/dialog/id/'.$help['id'])), $user['mail']))
                    continue;

                $sql->query('UPDATE `help` set `notice`="1" WHERE `id`="'.$help['id'].'" LIMIT 1');
            }

            return NULL;
        }
    }
?>