(
[appid] => wx999dde87c915ad99
[mch_id] => 1559747721
[nonce_str] => YQuLixBjgqN1onsm
[sign_type] => MD5
[notify_url] => https://yudamc.lueasy.com/api/Pay/Pay
[trade_type] => JSAPI
[out_trade_no] => 20191029172043766094
[body] => 门店经营诊断
[total_fee] => 10
[openid] => otlcK41p4zH4EKtOtl236XySd5UM
[spbill_create_ip] => 127.0.0.1
[sign] => 9FE85AD93DDB341113E2E8662A2358FF
)
Array
(
[return_code] => FAIL
[return_msg] => 签名错误
)
检查签名参数,转义,排序。大小写都不能有误。