List all defined variables

obonaventure has asked for the wisdom of the Perl Monks concerning the following question:

I'm looking to have the ability to dump all currently defined variables in a perl script by calling a function or subroutine. I know I could write a subroutine to list the variables I was interested in but I thought that maybe there was a way to do it automatically. It would be nice to be able to reuse the code in other script without needing to modify it everytime a variable is added or deleted.

Comment on List all defined variables

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Re: List all defined variables by kyle (Abbot) on Jan 23, 2009 at 19:24 UTC
Dump of all defined variables for debugging (Super Search is awesome.)	[reply]
Re^2: List all defined variables by obonaventure (Acolyte) on Jan 23, 2009 at 19:26 UTC
Thanks! I did search but i'm not sure why I did not come up with this. Thanks again.	[reply]
Re: List all defined variables by Fletch (Bishop) on Jan 23, 2009 at 20:20 UTC
See also the core B::Xref. The cake is a lie. The cake is a lie. The cake is a lie.	[reply]
Re: List all defined variables by chromatic (Archbishop) on Jan 23, 2009 at 20:29 UTC
It would be nice to be able to reuse the code in other script without needing to modify it everytime a variable is added or deleted. In general, you can do this -- you have to work pretty hard not to be able to do this. Are you using lexical variables within your subroutines, passing arguments, and returning values? If not, try that instead. (If you're not sure what I meant there, can you show us a small example of code which you have to modify every time you add or delete a variable elsewhere?)	[reply]