this post was submitted on 10 Sep 2023
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The way it works is that there's a symbol table entry for "foo" which has a slot for a hash, scalar, array, glob, etc.
That leads to some super weird behaviour like, for example, if I declare a scalar, hash and array as "x":
You can access them all independently as you're aware:
But what's really going to bake your noodle is I can assign the "x" symbol to something else like this:
..and then the same thing works with z:
Oneliner if you want to try it:
Congratulations! You now know more about one of Perl's really weird internals than I'd wager most Perl programmers (I have literally never used any of the above for anything actually productive!)