JSON 文字列処理ソリューションの説明を手伝ってください。ありがとうございます。

JSON文字列処理ソリューションを説明してください、ありがとうございます。

<!--

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--><?php
    $string='{
    "fenxiao_products_ge_response": {
        "total_results": 10,
        "products": {
            "fenxiao_product": [{
                "pid": 1255,
                "name": "jayzhou",
                "productcat_id": 444,
                "standard_price": "5",
                "cost_price": "5",
                "retail_price_low": "10.56",
                "retail_price_high": "10.56",
                "outer_id": 4444,
                "quantity": 444,
                "alarm_number": 444,
                "pictures": "http://img01.taobaocdn.com/xxx.jpg,http://img01.taobaocdn.com/xxx.jpg",
                "desc_path": "http://img03.taobaocdn.com/xxx.dpc",
                "prov": "浙江",
                "city": "杭州",
                "postage_type": "12",
                "postage_id": 5545,
                "postage_ordinary": "10.56",
                "postage_fast": "10.56",
                "postage_ems": "12.2",
                "have_invoice": true,
                "have_guarantee": true,
                "status": "up",
                "items_count": 5,
                "orders_count": 5,
                "created": "2000-01-01 00:00:00",
                "modified": "2000-01-01 00:00:00",
                "skus": {
                    "fenxiao_sku": [{
                        "id": "jayzhou",
                        "name": "如鞋子的sku：“红色，35”",
                        "cost_price": "1",
                        "quantity": "1",
                        "outer_id": "1"
                    }]
                }
            }]
        }
    }
}
';


    $array=(array)json_decode($string,true);
    var_dump($array);
?>

-----解決策---------

$string = iconv('gbk', 'utf-8', $string);
$array=json_decode($string,true);
var_dump($array);

json_decode のみUTF-8でエンコードされたJSON文字列を処理できます ------解決策------------------

GBKエンコーディングですよね？

次のように

$array=(array)json_decode(iconv('GBK', 'UTF-8', $string),true);