I'm not sure I see the problem here. You haven't declared or assigned a value to $foo the first time you call PutFoo(). The language is following your statements in the order in which they appear. If you are going to use a global variable like that, you need to declare it before starting the block that calls subroutines that depend on it.

Note: that's what tye's code does by subverting BEGIN. But that makes the code harder to follow. Debugging is a lot easier when you keep the parameters for a routine in the call to the routine, like PutFoo( $foo ), and then use shift (or @_) to get the argument(s) in sub PutFOO {}.

In reply to Re: Perl Turning a Blind Eye by ichimunki
in thread Perl Turning a Blind Eye by tadman

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