$agent_value is declared two times.
The substitution should not be used with my.
Just remove the second lexical declaration and the code works.

Also, I recommend to use strict and warnings.

'warnings' says: "my" variable $agent_value masks earlier declaration in same scope at ...

In reply to Re^5: How to store matched $1 values one by one to array? by trizen
in thread How to store matched $1 values one by one to array? by rekhasri

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