The majority of people I see trying to learn PHP have no idea these things even exist and are still building applications in the atrocious 1990s style promoted by such poisonously bad resources as w3schools.
It would be nice if people actually used tools like this rather than tried to bang their own together with mysql_query.
Totally agree with this.
After getting super impressed by Django's South migrations app, I wrote a minimal migrations tool for PHP-MySQL projects without checking if solutions already existed :-). Used it in two projects and it made life a lot easier for me and the team.
This looks much better though. Will definitely give it a try for my next PHP project.