The parsing of global console flags is rather inconsistent with rest of the console application framework.

The Application::configureIO() uses hasParameterOption for testing flags, which in case of ArgvInput does not seem to account for multiple flags provided in a single argument. i.e. it only tests for say, -q and -n separately, but not for -qn

To illustrate the issue, let's say, for example, that we have a command like:

class FooBarCommand extends Command
{
    protected function configure()
    {
        $this->setName('say')->addOption('foo', 'f')->addOption('bar', 'b');
    }

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        if ($input->getOption('foo')) {
            $output->write('foo');
        }
        if ($input->getOption('bar')) {
            $output->write('bar');
        }
    }
}

Now, if a run a command like

> php console say -q -f -b

we get no input, as expected due to the "quiet" flag. However, should we run the command:

> php console say -qfb
foobar

We suddenly get the output "foobar". This is even a bit more confusing, since there is no error or anything to indicate that we did something wrong. The "q" flag is defined as a shortcut for "quiet", so it doesn't cause validation errors, but since the "q" flag is only noticed, if it's provided exactly in the format of "-q", it's also ignored.

Even if this is intended, it's even more confusing, since the "help" command makes no mention of the special status of the "-n" and "-q" flags which must be provided separately.