在PHP中，如何从外部url的数组元素中获取特定的项值？

我想从API输出中获取地址的值 我通过以下方式向该URL发送请求：

echo $api=" <object data='https://apibtc.com/api/create_address?token=24373243hhhis8aa2f215437b01&callback=https://test.co'></object>";

我想得到地址值，我怎样才能得到

我尝试下面的方法，但没有回应

echo "address:".$api->success->Sign->Address;

---

因为它是json数据，所以必须用json对其进行解码，然后才能获得数据

$json ='{"success":true,"Res":{"Sign":"202e480b32fd6b1ea311381f3cc3a480","Adress":"1FJQUXxovyizVvMhjjUMuY1QkScZbS5ipp","Address":"1FJQUXxovyizVvMhjjUMuY1QkScZbS5ipp","DateEnd":"2017-10-07 12:26:25"}}';
$data = json_decode($json);
echo $data->Res->Adress;

---

而不是

success

使用

Res

，如

$api->Res->Address和
$api->Res->Sign可能重复的
$json ='{"success":true,"Res":{"Sign":"202e480b32fd6b1ea311381f3cc3a480","Adress":"1FJQUXxovyizVvMhjjUMuY1QkScZbS5ipp","Address":"1FJQUXxovyizVvMhjjUMuY1QkScZbS5ipp","DateEnd":"2017-10-07 12:26:25"}}';
$data = json_decode($json);
echo $data->Res->Adress;