I've used Forge to install a version of PHP7.3 as CLI on my PHP7.2 server. Then I've got a project that has now been set under meta from php7.2 to 7.3
I've rebooted the server.
Now when I use Tinker and run phpversion() it returns
If I try to deploy an app that was running on PHP 7.3 locally the composer.lock info tries to install 7.3 compatible stuff and fails with a 'Not compatible with 7.2' error
Where does each site set its PHP version info and how can I check that it's installed correctly?