Please see comments for some important updates!
Valet, when told to use a specific version of PHP (using valet use) symlinks $HOME/.config/valet/valet.sock (on macOS) to a specific version of PHP installed on your system. If you use valet use, unfortunately, it switches this symlink and your system PHP version.
But all you need to do is (with Homebrew) use brew unlink php && brew link php@8.1 --force --overwrite to tell your system to use PHP 8.1.x, that does not tell Valet what version to use, valet use does.
If you use e.g. valet use php@7.4 you can simply use brew unlink php && brew link php@8.1 --force --overwrite to re-link your system back to using PHP 8. If you look at $HOME/.config/valet/valet.sock you will notice it's still symlinked to valet74.sock, and you can confirm with e.g. phpinfo().
It's a bit of a hack, but it works for me.
Take a look at some aliases I have setup to make this easy with valet@7 which makes sure my system continues to run 8.1.
Top comments (1)
Okay, so this doesn't seem to be necessary anymore now that I ran into:
laravel.com/docs/9.x/valet#per-sit...
Apparently you can use
valet isolate php@x.xto tell a specific site to use a specific version without modifying your system php version.Now to go delete a bunch of unnecessary aliases!