mirror of
https://github.com/sigmasternchen/php-doc-en
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3947c69930
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@163704 c90b9560-bf6c-de11-be94-00142212c4b1
71 lines
1.9 KiB
XML
71 lines
1.9 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.6 $ -->
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<!-- splitted from ./en/functions/mysql.xml, last change in rev 1.2 -->
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<refentry id="function.mysql-num-fields">
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<refnamediv>
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<refname>mysql_num_fields</refname>
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<refpurpose>Get number of fields in result</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>int</type><methodname>mysql_num_fields</methodname>
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<methodparam><type>resource</type><parameter>result</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>mysql_num_fields</function> returns the number of
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fields in the result set <parameter>result</parameter>.
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</para>
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<para>
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<example>
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<title>A <function>mysql_num_fields</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$result = mysql_query("SELECT id,email FROM people WHERE id = '42'");
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if (!$result) {
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echo 'Could not run query: ' . mysql_error();
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exit;
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}
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/* returns 2 because id,email === two fields */
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echo mysql_num_fields($result);
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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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For downward compatibility <function>mysql_numfields</function>
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can also be used. This is deprecated however.
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</para>
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<para>
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See also
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<function>mysql_select_db</function>,
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<function>mysql_query</function>,
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<function>mysql_fetch_field</function> and
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<function>mysql_num_rows</function>.
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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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