<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.5 $ -->
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<refentry id="function.mysql-field-len">
 <refnamediv>
  <refname>mysql_field_len</refname>
  <refpurpose>
   Returns the length of the specified field
  </refpurpose>
 </refnamediv>
 <refsect1>
  <title>Description</title>
   <methodsynopsis>
    <type>int</type><methodname>mysql_field_len</methodname>
    <methodparam><type>resource</type><parameter>result</parameter></methodparam>
    <methodparam><type>int</type><parameter>field_offset</parameter></methodparam>
   </methodsynopsis>
  <para>
   <function>mysql_field_len</function> returns the length of the
   specified field.
  </para>
  <para>
   <example>
    <title><function>mysql_field_len</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;
}

// Will get the length of the value in email so for example
// user@example.com would give us a length of 16
$length = mysql_field_len($result, 'email');
echo $length;
?>
]]>
    </programlisting>
   </example>
  </para>
  <para>
   For downward compatibility <function>mysql_fieldlen</function>
   can also be used. This is deprecated, however.
  </para>
  <para>
   See also <function>mysql_fetch_lengths</function> and
   <function>strlen</function>.
  </para>
 </refsect1>
</refentry>

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