Need to submit a form after successful registration but not sure how to?

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Hi,

I am new to Concrete5 and also new to php. I am able to create basic site and setup user registration as provided by Concrete5 BUT I need to add below functionality.

Situation:
Need to submit a form on another site after successful registration of the user with following information:
1. User
2. Pwd
3. email id
4. registered datetime

Unfortunately, I am not sure how to do this in php and will appreciate any help.

Thanks for your time.