我正在使用paypal rest api帐户sandbox来允许用户购买门票。一切正常。我得到了这个回应：
ayPal\Api\Payment Object
(
[_propMap:PayPal\Common\PPModel:private] => Array
(
[id] => PAY-XXXXXXXXXXXXXXXXXXXXXX
[create_time] => 2014-12-03T12:35:31Z
[update_time] => 2014-12-03T12:36:23Z
[state] => approved
[intent] => sale
[payer] => PayPal\Api\Payer Object
(
[_propMap:PayPal\Common\PPModel:private] => Array
(
[payment_method] => paypal
[payer_info] => PayPal\Api\PayerInfo Object
(
[_propMap:PayPal\Common\PPModel:private] => Array
(
[email] => doua.ddd@gmail.com
[first_name] => times
[last_name] => douha
[payer_id] => XXXXXXXXXX
[shipping_address] => PayPal\Api\ShippingAddress Object
(
[_propMap:PayPal\Common\PPModel:private] => Array
(
[line1] => Av. de la Pelouse, 87648672 Mayet
[city] => Paris
[state] => Alsace
[postal_code] => 75002
[country_code] => FR
[recipient_name] => douha
)
)
)
)
)
)
[transactions] => Array
(
[0] => PayPal\Api\Transaction Object
(
[_propMap:PayPal\Common\PPModel:private] => Array
(
[amount] => PayPal\Api\Amount Object
(
[_propMap:PayPal\Common\PPModel:private] => Array
(
[total] => 12.00
[currency] => EUR
[details] => PayPal\Api\Details Object
(
[_propMap:PayPal\Common\PPModel:private] => Array
(
[subtotal] => 12.00
)
)
)
)
[description] => 12 EUR
[related_resources] => Array
(
[0] => PayPal\Api\RelatedResources Object
(
[_propMap:PayPal\Common\PPModel:private] => Array
(
[sale] => PayPal\Api\Sale Object
(
[_propMap:PayPal\Common\PPModel:private] => Array
(
[id] => XXXXXXXXX
[create_time] => 2014-12-03T12:35:31Z
[update_time] => 2014-12-03T12:36:23Z
[amount] => PayPal\Api\Amount Object
(
[_propMap:PayPal\Common\PPModel:private] => Array
(
[total] => 12.00
[currency] => EUR
)
)
[payment_mode] => INSTANT_TRANSFER
[state] => completed
[protection_eligibility] => ELIGIBLE
[protection_eligibility_type] => ITEM_NOT_RECEIVED_ELIGIBLE,UNAUTHORIZED_PAYMENT_ELIGIBLE
[parent_payment] => PAY-8TA78025CU843082LKR7QHEY
[links] => Array
(
[0] => PayPal\Api\Links Object
(
[_propMap:PayPal\Common\PPModel:private] => Array
(
[href] => https://api.sandbox.paypal.com/v1/payments/sale/XXXXXXXXXXXX
[rel] => self
[method] => GET
)
)
[1] => PayPal\Api\Links Object
(
[_propMap:PayPal\Common\PPModel:private] => Array
(
[href] => https://api.sandbox.paypal.com/v1/payments/sale/XXXXXXXXXXXXXXXX/refund
[rel] => refund
[method] => POST
)
)
[2] => PayPal\Api\Links Object
(
[_propMap:PayPal\Common\PPModel:private] => Array
(
[href] => https://api.sandbox.paypal.com/v1/payments/payment/PAY-XXXXXXXXXXXXXXXX
[rel] => parent_payment
[method] => GET
)
)
)
)
)
)
)
)
)
)
)
[links] => Array
(
[0] => PayPal\Api\Links Object
(
[_propMap:PayPal\Common\PPModel:private] => Array
(
[href] => https://api.sandbox.paypal.com/v1/payments/payment/PAY-XXXXXXXXXXXXXXX
[rel] => self
[method] => GET
)
)
)
)
)
但是，您可以注意到我没有收到退款对象。退款对象如何获取，以后想用它给用户退款。是不是跟paypal账户里的配置有关？