如何在php中讀取json數據索引對象

Question

簡單的三行代碼：

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

我使用前 2 行將 json 數據轉換為 php 中的數組，第三行打印以下數組（我在此處顯示的部分）：

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

我的問題是：我如何回顯金額（即 100）或 amount_refunded（即 0）？

Answer 1

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