Quote

              As of release 5 of Perl, assignment to $[ is treated as a compiler directive, and
              cannot influence the behavior of any other file.  (That's why you can only assign
              compile-time constants to it.)  Its use is highly discouraged.

Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live. -- Damian Conway in "Perl Best Practices"
lesen: Wie frage ich & perlintro brian's Leitfaden für jedes Perl-Problem