When You say Package variable, then you mean global variable.

When you say global, you mean package variable.

Package variables are global. Loosely speaking, people also call file-scoped lexicals global variables, so you can have global lexical variables too.

What if, I declare a package variable and that variable does not exist in the package. Will that variable be created in the package ?

Declaring means to make exist. Your condition is a contradiction (never true).

If a variable is declared without "my" prefix, thats a global variable or package variable, right

How are you declaring it?

use vars qw( $var ); declares a package variable.

our $var; declares a package variable. (Not exactly, but it's a useful simple way of thinking of it.)

If a variable is not declared as global variable (package variable), then can we still use this variable $x as local variable ?

I think you're asking if you can use local can be used on variables other than package variables. Yes.

Note that it doesn't matter if the package variable was declared or not.

In reply to Re^3: Understanding difference between my and local variables. by ikegami
in thread Understanding difference between my and local variables. by manishrathi

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