mirror of
https://github.com/sigmasternchen/php-doc-en
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84975fd4f6
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@138316 c90b9560-bf6c-de11-be94-00142212c4b1
65 lines
1.7 KiB
XML
65 lines
1.7 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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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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<refname>is_resource</refname>
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<refpurpose>
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Finds whether a variable is a resource
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</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>bool</type><methodname>is_resource</methodname>
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<methodparam><type>mixed</type><parameter>var</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>is_resource</function> returns &true; if the variable
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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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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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