The following reverses an array in place, in case that's what you want: 

sub reverse_inplace
{
    for ( my $i = 0; $i < $#_ / 2; $i++ )
    {
        my $j = $#_ - $i;
        @_[$i,$j] = @_[$j,$i]; # swap
    }
}

# try it:

my @a = ( 1 .. 9 );
reverse_inplace( @a );
print "@a\n";

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Originally posted as a Categorized Answer.

In reply to Re: How do I reverse array elements? by rajib
in thread How do I reverse array elements? by Anonymous Monk

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