Hiding the address of a remote server??

Question

PHP

There are 2 hosts - A and B.
How can I transfer data from A to a remote server B, so that A does not have the address of B explicitly registered in the code in the code?
I was thinking of implementing a hidden service on the torus, so that A sends a request through the torus to the second server ... But this option is not entirely suitable, because the script is planned to be distributed in PHP without external libraries, and there is no desire to rewrite the TORA client in PHP at all ...
In general, the transmitted data packet is a regular JSON, the response is also JSON (the answer does not have to be).
The main rule is to hide the server where the data goes...

Answer 1

Send/receive data via jabber, email, P2P, etc., in general, through "intermediaries". Otherwise, you will either have to contact the server directly