如何在php中读取json数据索引对象

Question

三行简单的代码：

$input = @file_get_contents("php://input");
$event_json = json_decode($input,true);
print_r($event_json);

我已经使用前两行将json数据转换为php中的数组，第三行打印出以下数组（我在这里展示的部分）：

Array
(
    [created] => 1326853478
    [livemode] => 
    [id] => evt_00000000000000
    [type] => charge.succeeded
    [object] => event
    [request] => 
    [pending_webhooks] => 1
    [api_version] => 2014-07-26
    [data] => Array
    (
        [object] => Array
        (
            [id] => ch_00000000000000
            [object] => charge
            [amount] => 100
            [amount_refunded] => 0

我的问题是：如何回显金额（100）或金额退款（0）？

Answer 1

echo $event_json['data']['object']['amount'];
echo $event_json['data']['object']['amount_refunded'];