[HttpFoundation] ParameterBag::get() $deep param

[Oliboy50]

Q	A
Doc fix?	yes
New docs?	no
Applies to	2.8+

Documentation replacement for $deep parameter of ParameterBag::get() since it was deprecated in 2.8 and removed in 3.0.

Because there's no need to show the legacy way of doing this. We just get an array back and that's all.

[javiereguiluz]

👍 I agree completely with you. Thanks @Oliboy50.

I have a minor suggestion though. Don't you think that the original example is a bit confusing because of this: ?foo[bar]=bar The bar string is repeated, so when the example says returns 'bar' you don't know if it's returning the key or the value. Maybe we should replace it by ?foo[bar]=baz ?

[javiereguiluz]

@Oliboy50 I've created #6390 to finish this PR. You work was great but we wanted to make a final change. To avoid letting pull requests "die", from time to time we take over pending PRs to finish them. Of course I reused your original commit, so you'll get full credit for your work once this is merged. Thanks!

[Oliboy50]

thanks, @javiereguiluz I was waiting for a comment on this PR, but I didn't receive a mail for your comment 11days ago... so I though nobody answered it, my bad

anyway, I completely agree with all you said/done, so thanks a lot :)