[10.x] Add config:show command

[xiCO2k]

This PR adds the capability to see the config values directly from your cli.

Output

It can also work with nested config values like this:

php artisan config:view auth.guards

Output

or, even single values

php artisan config:view auth.guards.web.driver

Cheers.

[driesvints]

This is neat! But I'm a bit afraid what happens with things like env keys. Outputting these which might get logged seems a little dangerous to me.

[xiCO2k]

humm, interesting.

But I think the same happens if you do like cat .env or cat config/auth.php.

[driesvints]

@xiCO2k good point!

[Bazzly]

This is nice, Hopefully, it will get accepted,

[taylorotwell]

Thanks!

[andrey-helldar]

https://laravel-idea.com ¯_(ツ)_/¯

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[huangdijia]

What effect does the closure display?