To much work!

use CGI;

my $query = CGI->new();

if ($query->param( "button" ) eq 'first') { display_first(  $query ) }
else                                      { display_second( $query ) }

sub display_first {
  my $query = shift;

  # declare your variables here
}

sub display_second {
  my $query = shift;

  # declare your variables here
}

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There is no reason to declare all your variables when they are already in the $query object. Just pass the query object and in the routine assign values to the variables as you need them. No more, no less.

In reply to Re: CGI: Passing variables to a subroutine by Herkum
in thread CGI: Passing variables to a subroutine by stumbler

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