I was talking to a friend about foreach aliasing the loop variable one
by one through the list provided... As he was playing around with it,
came across this:
use Data::Dumper;
@headers = ("header 1","header 2","header 3");
@body = ("body A","body B","body C");
$h = 4;
foreach (@headers,"",@body) {
print "$h: $_\n";
@body = ();
push @headers,"header ".$h++;
}
print "\n", scalar @headers, "\n", Dumper [EMAIL PROTECTED];
Which produces:
4: header 1
5: header 2
6: header 3
7:
8: header 4
9: header 5
10: header 6
10
$VAR1 = [
'header 1',
'header 2',
'header 3',
'header 4',
'header 5',
'header 6',
'header 7',
'header 8',
'header 9',
'header 10'
];
And I say huh? I follow until output line "7:". I can even see why it
would run 3 more times (since the list fed to foreach was evaluated
before @body was modified).
What I don't get is how the next 3 elements of @headers get in there?
Is this part of the "don't mess with the loop vars while looping"
clause?
--
Dan Boger
[EMAIL PROTECTED]
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