如何讀取JSON數據索引對象在PHP

Question

三個簡單的行代碼：

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

我已經使用第一2行到JSON數據轉換成在PHP陣列，並且第三行打印以下陣列（一部分我在這裏展示）：

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：我如何回聲金額（這是100）或amount_refunded（這是0）？

Answer 1

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