If someone plays with $[, and you are using a loop as shown above, you have problems with both expressions $#array and scalar(@array).
So, if you want to ensure that your loop does what you want, you have to use this one:
#!/usr/bin/perl
use strict;
use warnings;
$[ = 3;
my @array = qw(1 2 3 4);
for my $i($[ .. $[ + (scalar(@array) - 1) ){
print $array[$i],"\n";
}
or
#!/usr/bin/perl
use strict;
use warnings;
$[ = 3;
my @array = qw(1 2 3 4);
for my $i($[ .. $#array ){
print $array[$i],"\n";
}
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