检查两个多维数组 是否一致

    //检查两个多维数组 是否一直
　　public function foo($arr, &$rt , $key='' ,$i=0) {
        if (is_array($arr)) {
            foreach ($arr as $k=>$v) {
                if (is_array($v)) {
                    $this->foo($v ,$rt ,$k ,$i);
                } else {
                    $rt[$key.'->'.$k.$i] = $v;
                }
                $i++;
            }
        }
        return $rt;
    }


    /**
     * 商品信息缓存一致性检查
     * @param $productId
     * @return bool
     */
    public function checkProductAttach($productId)
    {
        $getAttach = $this->productService->getAttach($productId);

        $getProductAttach = $this->productService->getProductAttach($productId);

        if($getProductAttach == false){
            Yii::$app->dataCache->getRedis()->del(['PRODUCT_ATTACH', $productId]);
            return true;
        }
        $isSame = $this->isSame($getAttach ,$getProductAttach );

        $arr = [];
        $arrCache = $this->foo($getAttach,$arr);
        $arrService = $this->foo($getProductAttach,$arr);

        $result = ['isSame'=>$isSame,'diff'=>array_diff($arrService, $arrCache)];

        if($isSame==false){
            Yii::getLogger()->log(['errorkey' => 'RedisCheckError:'.$productId , 'errorvalue' => json_encode($result['diff'])], Logger::LEVEL_ERROR);
        }
        return $result;
    }