No need for a test on each iteration: 
my @children   = $category->children;
my $last_child = pop @children;

foreach $child (@children) {
    handle_not_last_child($child);
}

handle_last_child($last_child);

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In reply to Re: Test for the last element in a foreach by mvc
in thread Test for the last element in a foreach by tdevil76

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