Sending string get jsonarray from php server

Question

I have the problem that I want to send a string to my php server with a post method and get as response a jsonarray. I tried it with volley but it just work for me with the string request(sending string receive string).
would be so happy if someone can solve this problem. looking now to month for a solution

Answer 1

would be really a great help

Answer 2

no one ?

Answer 3

please can anyone help me?