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adding example
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@138316 c90b9560-bf6c-de11-be94-00142212c4b1
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@ -1,5 +1,5 @@
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.2 $ -->
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<!-- $Revision: 1.3 $ -->
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<!-- splitted from ./en/functions/var.xml, last change in rev 1.19 -->
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<refentry id="function.is-resource">
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<refnamediv>
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@ -19,6 +19,23 @@
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given by the <parameter>var</parameter> parameter is a
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<type>resource</type>, otherwise it returns &false;.
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</para>
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<para>
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<example>
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<title>using <function>is_resource</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$db_link = @mysql_connect('localhost', 'mysql_user', 'mysql_pass');
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if (!is_resource($db_link)) {
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die('Can\'t connect : ' . mysql_error());
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}
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?>
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]]>
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</programlisting>
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</example>
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</para>
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<para>
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See the documentation on the <type>resource</type>-type for
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more information.
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