alt Hacker NewsTo note, it is surprisingly refreshing to completely forgo instanciable classes on a modern codebase.
Phpstan deals well with type definitions, arrays are powerful enough to contain whatever needed, and functions can be stored and passed around easily enough.
Array shapes are still second-class citizens defined in phpdoc, with an inferior editor UX, and lack of any run-time enforcement. A proper record type for PHP with value semantics would be an ideal solution for me. Would go nicely with the pattern matching proposal that's still incubating.