what should i start now?

Question

i have completed
front end ( html ,css, bootstrap ,js ,jquery )
, php
recently and want to step ahead.
i want to go like
front-end > database > back end > full-stack language.
please suggest me a list of language in this order.

Answer 1

You said that you have completed html, CSS, bootstrap, JS, jquary and php.
It means you have complete front end and back-end language.

So now learn SQL because SQL is use for database management system (DBMS) and it is remaining in you question's description.