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		<title>Checking If A Data Set Is Set When A Value Is NULL</title>
		<link>http://www.upwebdesign.com/php/checking-if-a-data-set-is-set-when-a-value-is-null/</link>
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		<pubDate>Wed, 25 Feb 2009 18:15:39 +0000</pubDate>
		<dc:creator>Jesse Vista</dc:creator>
				<category><![CDATA[MySQL]]></category>
		<category><![CDATA[PHP]]></category>
		<category><![CDATA[Web Development]]></category>
		<category><![CDATA[array]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[dataset]]></category>
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		<description><![CDATA[When setting a field in a MySQL database to be NULL by default you may run into NULL values in your dataset when querying the database.  You cannot simply check if a variable is set using the isset() function in PHP because it returns false for NULL values.  To remedy this issue you can use [...]]]></description>
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