Yep, agreed. I worked on two PHP codebases at a company many years ago - the "old" and the "new". The old was just frameworkless PHP with three different ways of doing controllers, partial templates with no closing tags so that they could be inserted anywhere without breaking the page, inline SQL in the templates etc. The new was hugely complicated with long inheritance chains and multiple classes with the same name but in different directories... but it was structured and you couldn't easily do anything wild.