> I have decent experience with PHP/MySQL from past Let's be honest: you don't have any experience with php or mysql anymore. 12 years ago was the era of php

> I have decent experience with PHP/MySQL from past Let's be honest: you don't have any experience with php or mysql anymore. 12 years ago was the era of php 5 with some remnants of 4. Php 7 and the ecosystem are a lot better nowadays (composer, Symfony etc.). For database people tend to use Postgres when they can but even MySQL added lot of good things with JSON, CTE, window functions. You may want to start learning from scratch. "Hello world" is still those letters in a .php file uploaded to a host tho.