If the variable that is going to hold each value in an loop already exists as a lexical one (first example), foreach creates a new lexical whose scope is the loop block. If it exists as a package global (second example), foreach localizes it, thus making its scope dynamic. That's why second example's print_foo sees the dynamic content.

--
David Serrano

In reply to Re^2: Hidden Secrets of PERL by Hue-Bond
in thread Hidden Secrets of PERL by perl_lover

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