Use square brackets: 
foo([]);

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لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re: passing anonymous empty array reference to subroutine by choroba
in thread passing anonymous empty array reference to subroutine by Special_K

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