Thanks for the information.

Someone sent me a message indicating that double quotes get converted to single quotes during compilation. That probably explains why there was no difference in performance.

I'm having a couple of problems getting merlyn's example to work. As written, line 65 says print $CGI::Q->dump(), which my version of Perl and CGI don't seem to like.

I replaced it with print CGI->Dump(); to call the subroutine declared at line 1013 of my copy of CGI.pm. When I run my code, nothing appears.

Any ideas?