The function that will be called is the one that was imported last. Importing is basically an assignment; a reference &ModuleA::function is assigned to the *main::{function} glob, and then a reference to &ModuleB::function is assigned to the same glob. The second assignment replacements the first one.

This is why using @EXPORT_OK to specify what your module should export is safer and friendlier than using @EXPORT. With @EXPORT_OK, the person using the module has to specify the functions and variables to be imported, so he or she is more likely to notice any conflicts with other modules.

In reply to Re: Avoiding variable conflict when importing modules by chipmunk
in thread Avoiding variable conflict when importing modules by nysus

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