if(is_array($_POST)) always = TRUE - why?

From: Randell D. (you.can.email.me.at.randelld_at_yahoo.com)
Date: 10/31/03 

Date: Thu, 30 Oct 2003 23:00:29 GMT

Folks,

I test if my PHP should process form data by checking if $_POST is an
array - However I always find its condition proves true - Why or
alternatvily, what other method can one use to check for this sort of
situation?

<?
 if(is_array($_POST))
 { die("<h1>here</h1>"); }
?>

I have tried isset() too and this also returns TRUE when it should be
false... must I always test with a count($_POST)==0?

ideas/solutions/anyone?

most appreciated - via the newsgroup
thanks
randelld

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