');
        $text = preg_replace("/\<(blockquote|strong|pre|ol|ul|li|em|p|s|u).*?\>/is", "<$1>", $text);    // 不用去除a标签，上面已经处理过了
        $text = preg_replace("/\[:IMAGE:(.*?):(.*?):(.*?):(.*?):(.*?):\]/i", "", $text);
        $text = preg_replace("/\[:@:(.*?):(.*?):\]/i", "@$2", $text);
        $text = preg_replace("/\[:#:(.*?):(.*?):\]/i", "#$2", $text);
        return preg_replace("/^(
<\/p>)+|(
<\/p>)+$/i", "", $text);
    }

    /**
     * 发送消息、修改消息
     * @param string $action        动作
     * - reply-98：回复消息ID-98
     * - update-99：更新消息ID-99
     * @param int $dialog_id        会话ID（即 聊天室ID）
     * @param string $type          消息类型
     * @param array $msg            发送的消息
     * @param int $sender           发送的会员ID（默认自己，0为系统）
     * @param bool $push_self       是否推送给自己
     * @return array
     */
    public static function sendMsg($action, $dialog_id, $type, $msg, $sender = 0, $push_self = false)
    {
        $link = 0;
        $mtype = $type;
        if ($type === 'text') {
            if (str_contains($msg['text'], 'whereDialogId($dialog_id)->first();
            if (empty($dialogMsg)) {
                throw new ApiException('消息不存在');
            }
            if ($dialogMsg->type !== 'text') {
                throw new ApiException('此消息不支持此操作');
            }
            if ($dialogMsg->userid != $sender) {
                throw new ApiException('仅支持修改自己的消息');
            }
            //
            $updateData = [
                'mtype' => $mtype,
                'link' => $link,
                'msg' => $msg,
                'modify' => 1,
            ];
            $dialogMsg->updateInstance($updateData);
            $dialogMsg->key = $dialogMsg->generateMsgKey();
            $dialogMsg->save();
            //
            $dialog->pushMsg('update', array_merge($updateData, [
                'id' => $dialogMsg->id
            ]));
            //
            return Base::retSuccess('修改成功', $dialogMsg);
        } else {
            // 发送
            if ($reply_id && !self::whereId($reply_id)->increment('reply_num')) {
                throw new ApiException('回复的消息不存在');
            }
            //
            $dialogMsg = self::createInstance([
                'dialog_id' => $dialog_id,
                'dialog_type' => $dialog->type,
                'reply_id' => $reply_id,
                'userid' => $sender,
                'type' => $type,
                'mtype' => $mtype,
                'link' => $link,
                'msg' => $msg,
                'read' => 0,
            ]);
            AbstractModel::transaction(function () use ($dialog, $dialogMsg) {
                $dialog->last_at = Carbon::now();
                $dialog->save();
                $dialogMsg->send = 1;
                $dialogMsg->key = $dialogMsg->generateMsgKey();
                $dialogMsg->save();
            });
            //
            $task = new WebSocketDialogMsgTask($dialogMsg->id);
            if ($push_self) {
                $task->setIgnoreFd(null);
            }
            Task::deliver($task);
            //
            return Base::retSuccess('发送成功', $dialogMsg);
        }
    }
}