- Laravel Version: 6.5.1 - PHP Version: 7.3.11 - Database Driver & Version: - OS: Windows Server 2016 - IIS: 10 ### Description: Symfony Console 4.3.7 introduced a new method to return whether STDOUT has vt100 support (some Windows 10+ configurations) When calling from a controller Artisan::call("demo:command"); This method errors with the following "Use of undefined constant STDOUT - assumed 'STDOUT' (this will throw an Error in a future version of PHP)" ### Steps To Reproduce: Call an artisan command from a controller on a Windows 2016 Server and IIS 10.