I don't see how that makes the development cycle any better. I can just edit a file, press save, and it compiles and tests run automatically. If I'm doing something in interpreted languages, the code updates in memory.
Furthermore if I'm working with JS/TS, hot reloading even makes it so I don't even need to refresh the page. I can even inject code into arbitrary places with the debugger (as if I'm editing the source)!
So, all these other ecosystems are on par with the PHP...
I'm glad PHP adopting ideas from other communities, and that the community is becoming more cohesive, though.
Aside: I used to write PHP before (back in the 3 to 5 days), and worked for a big web hosting provider that had a big shared hosting customer base; PHP was by far the most popular technology in that space.So, I'm not trying to bash on PHP.
Javascript has come a long way, but I think there's still a different.
With PHP, you install the toolchain, save a file and the page becomes available.
With JS/TS, you install the toolchain, and then enter a complicated process of yarn/npm incantations in the command line to get the project working right. The manual may say "yarn add typescript" but in practice there's always more setup and configuration to be done before it works well.
For "real" projects, there's not that much of a difference between yarn and composer. For getting started, though, the process is a lot more involved.
Another problem is that running Javascript on the backend is almost completely different from normal frontend development. If you want to store state, you end up using the same (or even worse, a similar) programming language with completely different contexts and available libraries and methods. You can't document.createElement in the backend to tell the user that an operation succeeded or failed, even though that's what you'd do if you were working on a frontend file.
With PHP, you can't do frontend, so whenever you write frontend code, you can't get confused. In my opinion, this makes learning PHP backend dev a lot easier. It's only natural that you choose to continue working in the language you've started you development career in. You can see that by the fact that there are still people who swear by VB.NET, despite everything.
The JS ecosystem does have the advantage of coming with a debugger, but PHP users can get the same by hooking their PHP install into the PHPStorm debugger. I think it doesn't matter much which language you use at that point, it's just a tooling preference.
All in all, I think both languages have their uses. If PHP really was as bad as people say it is, it would've died out already.
Furthermore if I'm working with JS/TS, hot reloading even makes it so I don't even need to refresh the page. I can even inject code into arbitrary places with the debugger (as if I'm editing the source)!
So, all these other ecosystems are on par with the PHP...
I'm glad PHP adopting ideas from other communities, and that the community is becoming more cohesive, though.
Aside: I used to write PHP before (back in the 3 to 5 days), and worked for a big web hosting provider that had a big shared hosting customer base; PHP was by far the most popular technology in that space.So, I'm not trying to bash on PHP.