The problem is that many, many PHP sites were created by people with limited budgets that will avoid all types of maintenance in the site code, because that mea

The problem is that many, many PHP sites were created by people with limited budgets that will avoid all types of maintenance in the site code, because that means paying the developers more money to do those maintenance tasks, if they ever have a clue that they really need to update their site code to work with newer versions that shared hosting providers eventually will impose.