discuz x3.2查询数据表并单独使用字段调用数据代码

$daythreads = DB::query("SELECT todayposts,yesterdayposts,threads,posts FROM ".DB::table('forum_forum')." WHERE type='forum'");
while($dayt = DB::fetch($daythreads)) {
$todayposts += $dayt['todayposts'];
$yesterdayposts += $dayt['yesterdayposts'];
$threads += $dayt['threads'];
$posts += $dayt['posts'];
}

{$todayposts}今日发帖数
{$yesterdayposts}昨日发帖数
{$threads}主题数
{$posts}帖子数