Symfony version(s) affected

7.0

Description

In contrast to other methods in this class, in ArrayInput::getFirstArgument there is no handling of the case that the value of the first parameter is of type Array.

If this is the case, there is a type error:

Symfony\Component\Console\Input\ArrayInput::getFirstArgument(): Return value must be of type ?string, array returned

How to reproduce

Initialize ArrayInput with an array-value as the first argument, e.g.

$input = new ArrayInput(['foo' => ['value']]);
$value = $input->getFirstArgument()

Possible Solution

• change the return type to mixed or allow array as a return type
• handle arrays another way

Additional Context

No response