如何循环生成迁移表

代码如下

foreach ($this->table_arr as $key=> $device) {
            Schema::create('rd_'.$key, function (Blueprint $table) {
                $table->id(); 
                $table->timestamps();
                //状态
            foreach ($device['status'] as $key1 =>  $value) {
                $table->tinyInteger($key1)->comment($value);
            }
                // 数据
                foreach ($device['data'] as $key1 =>  $value) {
                    $table->float($key1, 8, 2)->comment($value);
                }
                // 额定
                foreach ($device['rated'] as $key1 =>  $value) {
                    $table->char($key1, 40)->comment($value);
                }
            });     
        }