PHPFS feature suggestion

Idk if you guys take feature suggestions, but something like this would be epic

something like:
```
FS.mkdir('/working');
FS.mount(PHPFS, '.', '/working');
```
this would maybe be an alternative for nodefs for locally storing files and and also a way to locally store files from the browser.

Now im not sure how create the compatability is between webassembly javascript and php, so if its terrible the just ignore this question.

also im mostly talking about this cuz the only other way i could possibly think of when it comes to keeping the filesystem persistent, even when browsing data is lost/deleted is just by zipping up the entire filesystem altogether and downloading it to the users computer for the user to upload to a app when they want to use the files in that filesystem