src/DdvUtil/Laravel/Proxy/Traits/NextTransaction.php
public function next()
    {
        if (isset($this->nextHander)) {
            // 存储
            $hander = &$this->nextHander;
            // 释放
            unset($this->nextHander);
            // 调用
            return call_user_func($hander);
        }
        return false;
    }
public function next()
    {
        if (isset($this->nextHander)) {
            // 存储
            $hander = &$this->nextHander;
            // 释放
            unset($this->nextHander);
            // 调用
            return call_user_func($hander);
        }
        return false;
    }
调用下一个事物
@return bool