Yes it's very practical. Finding a hosting solution for PHP is not going to be to difficult. It's not going to 'go away' anytime soon, certainly not before i

Yes it's very practical. Finding a hosting solution for PHP is not going to be to difficult. It's not going to 'go away' anytime soon, certainly not before it becomes time to re-write your codebase. The docs are good. Whether or not there is something which does any of those points better does not change the answer to the actual question. Yes, PHP/MySQL is still practical for building web apps.