<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.fdf-next-field-name" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>fdf_next_field_name</refname>
  <refpurpose>Get the next field name</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>string</type><methodname>fdf_next_field_name</methodname>
   <methodparam><type>resource</type><parameter>fdf_document</parameter></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>fieldname</parameter></methodparam>
  </methodsynopsis>
  <para>
   Gets the name of the field after the given field. This name can be used
   with several functions.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>fdf_document</parameter></term>
     <listitem>
      <para>
       The FDF document handle, returned by <function>fdf_create</function>,
       <function>fdf_open</function> or <function>fdf_open_string</function>.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>fieldname</parameter></term>
     <listitem>
      <para>
       Name of the FDF field, as a string. If not given, the first field will
       be assumed.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns the field name as a string.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Detecting all fieldnames in a FDF</title>
    <programlisting role="php">
<![CDATA[
<?php
$fdf = fdf_open($HTTP_FDF_DATA);
for ($field = fdf_next_field_name($fdf);
    $field != "";
    $field = fdf_next_field_name($fdf, $field)) {
    echo "field: $field\n";
}
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>fdf_get_value</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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