You're accessing $mapping{$anet[0]} - did you ever assign to that key? Doesn't look like it . . .
My criteria for good software:
  1. Does it work?
  2. Can someone else come in, make a change, and be reasonably certain no bugs were introduced?

In reply to Re^3: Need help from the esteemed monks on scoping/hashes by dragonchild
in thread Need help from the esteemed monks on scoping/hashes by garbage777

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