Claude still has to write software in a target language, often using an established framework, especially one with a lot of examples.
PHP is, in fact, exceptionally good as a language for creating websites.
also the best code is usually less code, and frameworks can be really helpful there.
Frankly everything is now. Anyone can use Rust or Go for this now.
A web accessible PHP runtime is, in fact, a giant security vulnerability and always had been.