Re^8: Access a global variable from a subroutine when used as "for" iterator (updated)

Perl has two different kinds of variables, private variables declared with my and package variables (usually) declared with our

a lexical scope in Perl is anything from declaration till end of enclosing { block }
the biggest possible lexical scope outside a block is the file, aka file-scope
lexical ( i.e. "as you read" the static code ) is opposed to "dynamic" (i.e. run-time effects)
main:: and other package s are namespaces not scopes, think of them as hashes of variables and functions
my variables do not belong to namespaces, our vars do
global means accessible everywhere, all namespaces including vars and subs are global as long as you use the *fully::qualified::name
special variables always belong to main::

for sources, e.g. "Scoping" see

And an excellent overview can be found in

Cheers Rolf
_{(addicted to the Perl Programming Language :)

see Wikisyntax for the Monastery}

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Re^9: Access a global variable from a subroutine when used as "for" iterator by hippo (Archbishop) on Dec 22, 2023 at 08:45 UTC
Well that's confusing. Aren't these self-contradictory? main:: and other package s are namespaces not scopes ... variables do not belong to namespaces special variables always belong to main:: I can't reconcile these 3 statements, sorry. Post-update: reads much better now, thanks. 🦛	[reply]
Re^10: Access a global variable from a subroutine when used as "for" iterator by LanX (Saint) on Dec 22, 2023 at 10:14 UTC
Hi Thanks corrected, somehow the "my" got lost > > my variables do not belong to namespaces Cheers Rolf _{(addicted to the Perl Programming Language :) see Wikisyntax for the Monastery}	[reply]