Data classes will be a very useful addition to "API Platform". API Platform is a "resource-oriented" framework that strongly encourages the use of "data-only" classes: we use PHP classes both as a specification language to document the public shape of web APIs (like an OpenAPI specification, but written in PHP instead of JSON or YAML), and as Data Transfer Objects containing the data to be serialized into JSON (read), or the JSON payload deserialized into PHP objects (write).
Being able to encourage users to use structs (that's what we already call this type of behavior-less class in our workshops) for these objects will help us a lot. Kévin
