Its still so annoying that you have to use mb_real_uppercase($name) for unicode. The other gripe is that the stdlib is SO messy. With PHP 5.3 they had a once in a lifetime opportunity to cleanup the stdlib and introduce a new namespaced API for builtins, and optionally introduce a uniform function call syntax:
"foo"->strtoupper();
Whenever doing PHP the time for concurrency will come sooner or later. Having no way of doing ANY concurrency is a letdown. The Fiber API does nothing on its own, and you are forced to use some third party runtime, that is usually a non-starter for legacy projects.PHP has come a long way from the PHP 4.0 era, but is still lacking in multiple areas, and i dont see it being a pick for greenfield projects in 2025.