弹幕的产生

/**
 * 产生弹幕数据
 * php index.php cli goods gen_barrage_data
 */
public function gen_barrage_data()
{
    $cache_key = CACHE_KEY_PREFIX . 'barrage';
    $cache_data = [];
    $s_time = time();
    $this->load->driver('cache', array('adapter' => 'memcached', 'backup' => 'file'));
    $this->load->model('member/member_go_record');
    $sleep_time = 1;
    while (true) {
        //超过一分钟退出程序
                if (time() - $s_time >= 60) {
            exit("到了一分钟的时间，结束此次进程");
        }
        //读取最新的购买记录的id
        $more_than_id = 0;
        if ($this->cache->get(CACHE_KEY_PREFIX . 'barrage_max_id')) {
            $more_than_id = $this->cache->get(CACHE_KEY_PREFIX . 'barrage_max_id');
        }
        //查询新的购买记录数据
        $barrage_data = $this->member_go_record->get_barrage_data($more_than_id);
        if (empty($barrage_data)) {
            echo "no new data \r\n";
            sleep($sleep_time);
            continue;
        }

        //记录弹幕数据到缓存
        foreach ($barrage_data as &$v) {
            $tmp_ip = explode(',', $v['ip']);
            $v['ip'] = $this->deal_ip_address($tmp_ip[0]);
        }
        $old_barrage_data = $this->cache->get($cache_key);
        $old_barrage_data = json_decode($old_barrage_data, TRUE);
        if (!is_array($old_barrage_data)) {
            $old_barrage_data = [];
        }
        $barrage_data = array_merge($barrage_data, $old_barrage_data);
        $barrage_data = array_slice($barrage_data, 0, 10);
        $this->cache->save($cache_key, json_encode($barrage_data), TIME_HOUR);

        //记录最新的id到缓存
        $max_id = $barrage_data[0]['id'];
        var_dump($max_id);
        $this->cache->save(CACHE_KEY_PREFIX . 'barrage_max_id', $max_id, TIME_HOUR);
        sleep($sleep_time);
    }
}