如何從此對象檢索值？

Question

使用PHP，我試圖得到一個特定的優惠券。

require_once './lib/Stripe.php'; 
Stripe::setApiKey(STRIPE_SK); 
$response = Stripe_Coupon::retrieve('coupon id here'); 
print_r($response); 

print_r（$ response）;給了我下面的對象。我的問題是如何從對象中檢索[id]？感謝您的幫助

Stripe_Coupon Object 
(
    [_apiKey:protected] => sk_test_xxxxxxxxxxxxxxxxxxxxxxxxxxx 
    [_values:protected] => Array 
     (
      [id] => 10percent 
      [created] => 1395914393 
      [percent_off] => 10 
      [amount_off] => 
      [currency] => 
      [object] => coupon 
      [livemode] => 
      [duration] => repeating 
      [redeem_by] => 
      [max_redemptions] => 
      [times_redeemed] => 2 
      [duration_in_months] => 12 
      [valid] => 1 
     ) 
) 

Answer 1

該對象使用PHP magic __get方法。你應該能夠使用：

$id = $response->id; 

如果你經歷了源代碼，你會發現對象最終歸結爲Stripe_Object類。來源： https://github.com/stripe/stripe-php/blob/master/lib/Stripe/Object.php