我正在尝试测试我的侦听器文件如何处理 PayPal 交易，但沙盒没有传递任何有关交易费用的信息。我很确定实时 PayPal 网站确实将交易费用传递给了侦听器文件。
这是发布到侦听器文件的内容：
mc_gross => 25.00
protection_eligibility => Ineligible
address_status => confirmed
item_number1 => C-1001
tax => 0.00
item_number2 => C-1002
payer_id => XXXXXXXXXXXXX
address_street => 1 Main St
payment_date => 15:10:14 May 27, 2013 PDT
payment_status => Pending
charset => windows-1252
address_zip => 95131
mc_shipping => 0.00
mc_handling => 0.00
first_name => Jon
address_country_code => US
address_name => Jon Doe
notify_version => 3.7
custom => *Member ID passed as custom variable*
payer_status => verified
address_country => United States
num_cart_items => 2
mc_handling1 => 0.00
mc_handling2 => 0.00
address_city => San Jose
verify_sign => XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-999999999999999999999999
payer_email => jon@mydomain.com
mc_shipping1 => 0.00
mc_shipping2 => 0.00
tax1 => 0.00
tax2 => 0.00
txn_id => XXXXXXXXXXXXXXXXX
payment_type => instant
last_name => Doe
address_state => CA
item_name1 => General Expenses
receiver_email => finance@ourdomain.org
item_name2 => Building Fund
quantity1 => 1
quantity2 => 1
pending_reason => unilateral
txn_type => cart
mc_gross_1 => 10.00
mc_currency => USD
mc_gross_2 => 15.00
residence_country => US
test_ipn => 1
transaction_subject => *Member ID passed as custom variable*
payment_gross => 25.00
ipn_track_id => 9999999999999