Laravel 打印SQL語句

DB::connection()->enableQueryLog();#開啟執行日志
$a = self::where(['investorid'=>$id])->whereBetween('inserttime',[$start,$end])->where('deposit','>',0)->orderBy('id','asc')->Paginate(20);
 print_r(DB::getQueryLog());   //獲取查詢語句、參數和執行時間