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这里是文档,https://www.paypal.com/cgi-bi...应该如何测试,无法测试返回,希望高人指点一二
小伙看你根骨奇佳，潜力无限，来学PHP伐。
paypal
Required Learn about the Express Checkout flow.
Required Add the PayPal Express Checkout button to your page.
Required Choose your Express Checkout integration method.
Required Perform a basic client integration or an advanced server integration.
Required Test your Express Checkout integration.
js调用
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
paypal
Required Learn about the Express Checkout flow.
Required Add the PayPal Express Checkout button to your page.
Required Choose your Express Checkout integration method.
Required Perform a basic client integration or an advanced server integration.
Required Test your Express Checkout integration.
js调用