My point was more that PHP is more of a framework-less language, as most of the functionality needed for a basic web application is built-in (file-based routing, secure PDO database access, external libraries for specific functionalities like PHPMailer for sending emails).
I think that if you need something a lot more complex than this (realtime communication, processing data in separate threads, linking microservices), then PHP is not a good choice.
I think that if you need something a lot more complex than this (realtime communication, processing data in separate threads, linking microservices), then PHP is not a good choice.