支付寶 掃碼支付 集成

https://docs.open.alipay.com/194/106078/

創建應用並簽約當面付

https://docs.open.alipay.com/194/105170#s3

https://docs.open.alipay.com/194/105203 當面付API列表

https://docs.open.alipay.com/api_1/alipay.trade.precreate/

sdk

https://docs.open.alipay.com/54/103419

不是條碼支付！

alipay.trade.precreate

[code] => 40004 [msg] => Business Failed [sub_code] => ACQ.INVALID_PARAMETER [sub_msg] => 參數無效 )

看下你的變量是不是掉了$

正常返回

[alipay_trade_precreate_response] => stdClass Object ( [code] => 10000 [msg] => Success [out_trade_no] => 20171231660466374 [qr_code] => https://qr.alipay.com/baxonitjwda2075 ) [sign] => HrC2IwWPQIJ2fKp8JYLCo13jY8dV9yCW

異步通知

https://docs.open.alipay.com/194/103296/

程序執行完后必須打印輸出“success”（不包含引號）。如果商戶反饋給支付寶的字符不是success這7個字符，支付寶服務器會不斷重發通知