The problem with the demo code is that each subroutine is only compiled once. That means that the $x variable in two corresponds to the $x variable in the first call of one. The first instance of $x persists as there is a reference to it stored in two.

Solutions include explicitly passing the value, forcing recompile each time through using a code reference (sub), swapping $x to a constant... What is the reason you aren't just passing in the value of $lig?

#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.

In reply to Re^3: Basic mod-perl question : why my variable is undefined ? by kennethk
in thread Basic mod-perl question : why my variable is undefined ? by pcouderc

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