Add use strict;to your code and it will tell you why.

Specifically, the array that you use to return the results of your function to the caller @pileofinchis is never declared lexically (with my), and so you are (re-)using the same global array each time you call the function. As you only ever add values to the array 

push @pileofinchis,$localinchi;

[download]

The contents of the array are added to, but never removed, each time you call it.

use strict catches these things for you and saves much time.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal?
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re: Ghostly subroutine variables haunting me in subsequent calls by BrowserUk
in thread Ghostly subroutine variables haunting me in subsequent calls by moonunit

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