testing for empty array

From: Date: Wed, 27 Nov 2002 00:41:22 +0000
Subject: testing for empty array
Groups: php.general 
Request: Send a blank email to php-general+get-126216@lists.php.net to get a copy of this message
I have an array $keywords, how do I test to see if it is empty? $keywords == '' seems to throw out an error.

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