Transaction amount details (subtotal, tax, shipping) must add up to specified amount total

Transaction amount details (subtotal, tax, shipping) must add up to specified amount total - PayPal PHP SDK

在使用pay付款的时候出现这个问题,sandbox是没有问题的,切换到live环境,然后就报这个错.发现sf上已经有人解决了这个问题:
https://stackoverflow.com/questions/48061785/transaction-amount-details-subtotal-tax-shipping-must-add-up-to-specified-am

Transaction amount details (subtotal, tax, shipping) must add up to specified amount total - PayPal_php

设置商品和付款的时候,对参数有要求.