Re: distinguish between null variable and unset variable

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On Thu, Jan 22, 2009 at 15:12, Daniel Brown <danbrown@xxxxxxx> wrote:
>
>    Unfortunately, neither solution would work.  isset() will return
> FALSE even for an instantiated and explicitly-defined NULL variable.

    Forgot to mention that, in addition, is_null() will return TRUE
for both explicitly-set NULL variables and undefined variables alike.

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</Daniel P. Brown>
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