our %prod; creates an alias named %prod to the variable %PKG::prod, where PKG is the package in which the our is located.

The alias exists until the end of the lexical scope (curlies or file). 

# ModuleA.pm

package ModuleA;
our %prod;
# %prod is aliased %ModuleA::prod

package ModuleA::Helper;
# %prod is still aliased %ModuleA::prod

1;

[download]
# ModuleB.pm

package ModuleB;
our %prod;
# %prod is aliased %ModuleB::prod

1;

[download]

In reply to Re: our scope and packages by ikegami
in thread our scope and packages by jfrm

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