i am not a "more monkish Monk", but i did get curious about this behavior of foreach. This is an alias (example modified from _Advanced Perl Programming_ (O'rielly) by Sriram Srinivasan): 
$a = 10;         # saclar a
@a = (1, 2, 3);  # array a
*b = *a;         # aliases b to a

$a++;            # increments $a :)
$b++;            # same as saying $a++
print "$b, $a";  # prints: 12 12

@b[0] = 4;       # same as saying $a[0] = 4

[download]
as you can see, the aliasing on line 3 makes any manipulation of $b, @b or %b manipulate $a, @a, %a respectively. hope this helps and is not too confusing. if i'm wrong, tell me :)

In reply to Re: Re: Re: Re: NEWBIE Brain Teaser by hiroki
in thread NEWBIE Brain Teaser by nysus

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