Actually, for creates two lexical scopes. One for the entire statement, and one of the block body.

You've already demonstrated the second. Here's a demonstration of the first: 

>perl -e"use strict; for (my @x) { } @x"
Global symbol "@x" requires explicit package name at -e line 1.
Execution of -e aborted due to compilation errors.

[download]

it seems like you don't "leave" the scope in which @a was delcared,

It's pretty clear to me the curly is the end of the scope, and you do indeed reach it.

Also, I still don't understand why the 'wrong' version creates the data structure that it does. Any thoughts on that one?

my @a;
push @container, \@a;
push @container, \@a;

[download]

Isn't it clear that it puts two references to the same variable into @container? Why do you think your loop is different?

In reply to Re^3: Scope and references by ikegami
in thread Scope and references by {}think

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