im experienced in programming php sql and set up btcpay server gateway and api.
For reminder, OP created these threads few days ago. So i would advice reader of this thread to be skeptical towards OP's claim about experience with Bitcoin-related tool.
I would also add, how come he is an "advanced php developer " and has no past work or experience to share?
I have done some php works in the past , even this
api (php only) and I wouldn't say i am advanced