PHP is a pain to work with. It doesn't have the tools that other languages have. The libraries available for PHP tend to be buggy or poorly designed.
The market for PHP developers isn't going to go away, but if you work somewhere that is using PHP there is a good chance you won't be working somewhere with a strong engineering focus. So you probably won't have great people to learn from and you will limit your growth as a software engineer.
The market for PHP developers isn't going to go away, but if you work somewhere that is using PHP there is a good chance you won't be working somewhere with a strong engineering focus. So you probably won't have great people to learn from and you will limit your growth as a software engineer.