Without using &AMP I need to write php code for Zoho Creator

Without using &AMP I need to write php code for Zoho Creator

(Previously I was using the URL of Zoho Creator in my PHP code which was on XAMP but now I am not allowed to use any &AMP)

I need to make database in Zoho Creator. (I will do it)

I need to write PHP code to apply business logics on that data.
I need to apply CRUD functionality and return output in JSON.

Kindly help me in letting me know that how I would write PHP code in Zoho creator as I am new to Zoho Creator.