How can i get the user profile data in payment script?

[Steffen Buschkemper]

Hello Flynax Team,

i have implement in my script a invoice pdf feature.
After a successful payment a invoice.pdf will be generated for customer.
The user must be registered and logged in for adding a listing or buying a package.

I am missing only the user profile data.
I need the follow user data separately

- ID
- Forename
- Lastname
- Address
- Zip
- City
- Country

Is there a global function for user profile data?
How can i get the user data for my script?

Best regards
Steffen