mirror of
https://github.com/sigmasternchen/php-doc-en
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42c93b5280
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@183245 c90b9560-bf6c-de11-be94-00142212c4b1
102 lines
2.3 KiB
XML
102 lines
2.3 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.9 $ -->
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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 role="description">
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&reftitle.description;
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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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Retrieves the number of fields from a query.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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&mysql.result.description;
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Returns the number of fields in the result set <type>resource</type> on
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success, or &false; on failure.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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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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</refsect1>
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<refsect1 role="notes">
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&reftitle.notes;
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<note>
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<para>
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&info.deprecated.alias;
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<function>mysql_numfields</function>
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</para>
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</note>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>mysql_select_db</function></member>
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<member><function>mysql_query</function></member>
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<member><function>mysql_fetch_field</function></member>
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<member><function>mysql_num_rows</function></member>
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</simplelist>
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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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