How I can perform form action using sololearn

Question

I have a form in php save it with extension name .php . I want to call form action on same page and to send data using submit button within same page. But after clicking Submit button nothing is happening... Plz. Solve my problem..
https://code.sololearn.com/wyQR24aQYuyv/?ref=app
https://code.sololearn.com/wyQR24aQYuyv/?ref=app

Answer 1

If a local server is installed on your phone then yes. You need something like https://play.google.com/store/apps/details?id=ru.kslabs.ksweb on android

Answer 2

Sir tell me in detail