I work with Retrofit2, Volley even already Postman test. $ _POST does not work on the server. It comes up empty, and I don’t even suggest how to solve this problem. Who had a similar write down what they did. I use the latest version of OpenServer. This error is observed only on LAN. There was no such error on the remote server. If I try to use the form, then $ _POST works as it should. But if I send from an external resource, then nothing works.
Accept the value
echo $_POST['say]