each is an iterator. Foreach loops works on list. You're asking if it's possible to cut a piece of wood with a screwdriver.

A foreach loop (whether using the for or foreach keyword) calls the list building expression once, and iterates over the resulting list.

A C-style for loop (whether using the for or foreach keyword) could, since it's really a while loop with bells and whistles.

Since you can probably cut a piece of wood with a screwdriver if you tried hard enough, 

for my $pair (
    sub {
        my @pairs;
        while (my ($k,$v) = each %h) { push @pairs, [$k,$v] }
        @pairs
    }->()
) {
    my ($k,$v) = @$pair;
    ...
}

[download]
But using the appropriate tool is better. 
while (my ($k,$v) = each %h) {
    ...
}

[download]
or 
for my $k (keys %h) {
    my $v = $h{$k};
    ...
}

[download]

In reply to Re^5: What is happening ? by ikegami
in thread problem using foreach and each with hash ref by vinoth.ree

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