laravel打印原生语句

laravel中快捷方便的打印语句的方法
步骤一：
DB::connection()->enableQueryLog();
$data["banner"] = WebsiteBanner::leftJoin("website_banner_category","website_banner.wb_category_id","=","website_banner_category.wbc_id")
 ->where("website_banner_category.wbc_code","index")
 ->where("website_banner.wb_start_time","<=",time())
 ->where("website_banner.wb_end_time",">=",time())
 ->select("website_banner.wb_name","website_banner.wb_image","website_banner.wb_url")
 ->get();
第二步：
$carNamedata = DB::getQueryLog();

第三步：
echo "<pre>";  var_dump($carNamedata);
打印结果

可以查询sql运行时间和连接对象