How to display different form for different countries?

I am trying to find a way to display different registration forms for different countries, by automatically identify user's ip address.

I looked at these with no luck: Paypal buttons with different prices depending on country
Can I use PayPal to change product prices based on location?

I have done extensive research on Stackoverflow and other platforms, and tried many implementations. Please, can you assist with my below code, and point me to the right direction?

Solution

PayPal does not host registration forms; PayPal processes payments. What you describe can be done in your own custom/dynamic code. The user will then end up at PayPal for the final payment step.

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