RTFM :))


At 16:47 3.5. 2001, Andi Gutmans wrote the following:
>At 10:43 AM 5/3/2001 -0400, Joe Brown wrote:
>>What about an isnull() function, opposed to key_exists();
>Yeah that's definitely a possiblity but then you'd have to do something like.
>if (isset($a["foo"]) || isnull($a["foo"))
>Kind of sucky.
>But we should think of a good resolution for a major version.
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