bbp_update_topic_forum_id (inttopic_id美元，intforum_id美元）

function bbp_update_topic_forum_id($topic_id = 0， $forum_id = 0){//如果是一个reply，则获取父(topic id) If (bbp_is_reply($topic_id)) {$topic_id = bbp_get_reply_topic_id($topic_id);} else {$topic_id = bbp_get_topic_id($topic_id);} if(空($forum_id)) {$forum_id = get_post_field('post_parent'， $topic_id);} update_post_meta($topic_id， '_bbp_forum_id'， (int) $forum_id);返回apply_filters('bbp_update_topic_forum_id'， (int) $forum_id， $topic_id);｝