Re^2: shared variables

Hi Jeff, thanks very much for your reply. I tried removing the 'my' definition in the testlib.pl but I continually get the message

Global symbol "$var" requires explicit package name at ./test.pl line 
+10.
Execution of ./test.pl aborted due to compilation errors.
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Now everything I read seems to point me in the direction of making a module for this, and not having ever made a module I will probably do this anyway for practice, but I'm always concerned if something 'should' work, but doesn't then it still leaves a large gap in my understanding. I'd be grateful if you could help me understand what is going wrong before I move on. Thanks.

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Re^3: shared variables by CountOrlok (Friar) on Mar 14, 2006 at 16:39 UTC
The reason why you get the message is because $var is not defined in test.pl, so you need to explicitly tell Perl which module (package) you want it to look in for $var. The program will work if you define testlib.pl as: `package testlib; our $var = "Lord only knows if this will work..."; 1;` [download] and change the print statement in test.pl to: `print $testlib::var;` Now, if you want to do things the recommended way by using a proper module you can do it like this: `# testlib.pm package testlib; use strict; our @EXPORT = qw( $var ); #place all the variables you want to export +by default in here (c.f. @EXPORT_OK) use Exporter; our @ISA = qw(Exporter); our $var = "Lord only knows if this will work..."; 1;` [download] `#!/usr/bin/perl -w # test.pl use strict; use CGI::Carp qw(fatalsToBrowser warningsToBrowser); use CGI ':standard'; use testlib; # will automagically import $var into current namespace print "Content-type: text/html\n\n"; print $var; exit;` [download] -imran	[reply] [d/l] [select]
Re^4: shared variables by Anonymous Monk on Mar 14, 2006 at 18:13 UTC
That's brilliant, imran. I appreciate the time and effort you've put in to show me the way. If I had a vote I would ++ you but I hope others take note and do it for me!! :)	[reply]