's better to export a collective hash (reference) or individual variables (as suggested by JavaFan)?

Personally, I wouldn't export either.

As I attempted to show above, I'd use individual package (our) variables, and use them via fully qualified references:

package MyConfig;

our $one = ...;
our $two = ...;

[download]
use MyConfig;

...
if( $x <= $MyConfig::one ) {
...

[download]

All the variable are nicely contained within the package stash (symbol table hash); warnings are issued for typos; and where they come from is clearly defined. And by not importing them, you avoid namespace clashes.

If they are truly constants, then I use constant and avail myself of the optimisations that brings.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
RIP an inspiration; A true Folk's Guy

In reply to Re^5: How not to use "our"? by BrowserUk
in thread How not to use "our"? by Anonymous Monk

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