I have used it for over a decade and even wrote a data migration platform that works sweet and can be changed on a dime. PHP is the perfect language to start learning how to code. All the other options are tied to major money and complexities that leave an engineer wondering what is really needed verses what 'sounds' cool.
PHP is about building solutions that can be maintained by just about anyone. I just wish you could compile it so you could release code without knowing it is basically 'open source' always.