$_ is not block scoped; it's just an ordinary global variable that happens to be the default target for various operations.
Thank you for this clear statement. I have been trapped by the globalness of $_ myself some times - it just feels quite natural for the beginner to assume that implicit assignment to $_ should also scope $_ implicitly to the assigning block.
Well, it does not unless you make it explicitly local.
I guess there are many good reasons for this :)

In reply to Re^2: global $_ behavior by jonix
in thread global $_ behavior by verdemar

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