<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.6 $ -->
<!-- splitted from ./en/functions/mysql.xml, last change in rev 1.2 -->
  <refentry id="function.mysql-num-fields">
   <refnamediv>
    <refname>mysql_num_fields</refname>
    <refpurpose>Get number of fields in result</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>int</type><methodname>mysql_num_fields</methodname>
      <methodparam><type>resource</type><parameter>result</parameter></methodparam>
     </methodsynopsis>
    <para>
     <function>mysql_num_fields</function> returns the number of
     fields in the result set <parameter>result</parameter>.
    </para>
    <para>
     <example>
      <title>A <function>mysql_num_fields</function> example</title>
      <programlisting role="php">
<![CDATA[
<?php
$result = mysql_query("SELECT id,email FROM people WHERE id = '42'");
if (!$result) {
    echo 'Could not run query: ' . mysql_error();
    exit;
}

/* returns 2 because id,email === two fields */
echo mysql_num_fields($result);
?>
]]>
      </programlisting>
     </example>
    </para>
    <para>
     For downward compatibility <function>mysql_numfields</function>
     can also be used. This is deprecated however.
    </para>
    <para>
     See also
     <function>mysql_select_db</function>,
     <function>mysql_query</function>,
     <function>mysql_fetch_field</function> and
     <function>mysql_num_rows</function>.
    </para>
   </refsect1>
  </refentry>

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