<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.10 $ -->
<refentry id="function.mysqli-field-seek">
 <refnamediv>
  <refname>mysqli_field_seek</refname>
  <refname>result->field_seek()</refname>
  <refpurpose>Set result pointer to a specified field offset</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <para>Procedural style:</para>
  <methodsynopsis>
   <type>bool</type><methodname>mysqli_field_seek</methodname>
   <methodparam><type>mysqli_result</type><parameter>result</parameter></methodparam>
   <methodparam><type>int</type><parameter>fieldnr</parameter></methodparam>
  </methodsynopsis>
  <para>Object oriented style (method):</para>
  <classsynopsis>
   <ooclass><classname>mysqli_result</classname></ooclass>
   <methodsynopsis>
    <type>bool</type><methodname>field_seek</methodname>
    <methodparam><type>int</type><parameter>fieldnr</parameter></methodparam>
   </methodsynopsis>
  </classsynopsis>
  <para>
   Sets the field cursor to the given offset. The next call to 
   <function>mysqli_fetch_field</function> will retrieve the field definition
   of the column associated with that offset.
  </para>
  <note>
   <para>
    To seek to the beginning of a row, pass an offset value of zero.
   </para>
  </note>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    &mysqli.result.description;
    <varlistentry>
     <term><parameter>fieldnr</parameter></term>
     <listitem>
      <para>
       The field number. This value must be in the range from 
       <literal>0</literal> to <literal>number of fields - 1</literal>.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns the previous value of field cursor.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <example>
   <title>Object oriented style</title>
   <programlisting role="php">
<![CDATA[
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");

/* check connection */
if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}

$query = "SELECT Name, SurfaceArea from Country ORDER BY Code LIMIT 5";

if ($result = $mysqli->query($query)) {

    /* Get field information for 2nd column */
    $result->field_seek(1);
    $finfo = $result->fetch_field();

    printf("Name:     %s\n", $finfo->name);
    printf("Table:    %s\n", $finfo->table);
    printf("max. Len: %d\n", $finfo->max_length);
    printf("Flags:    %d\n", $finfo->flags);
    printf("Type:     %d\n\n", $finfo->type);

    $result->close();
}

/* close connection */
$mysqli->close();
?>
]]>
  </programlisting>
  </example>
  <example>
   <title>Procedural style</title>
   <programlisting role="php">
<![CDATA[
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");

/* check connection */
if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}

$query = "SELECT Name, SurfaceArea from Country ORDER BY Code LIMIT 5";

if ($result = mysqli_query($link, $query)) {

    /* Get field information for 2nd column */
    mysqli_field_seek($result, 1);
    $finfo = mysqli_fetch_field($result);

    printf("Name:     %s\n", $finfo->name);
    printf("Table:    %s\n", $finfo->table);
    printf("max. Len: %d\n", $finfo->max_length);
    printf("Flags:    %d\n", $finfo->flags);
    printf("Type:     %d\n\n", $finfo->type);

    mysqli_free_result($result);
}

/* close connection */
mysqli_close($link);
?>
]]>
   </programlisting>
  </example>
  &example.outputs;
  <screen>
<![CDATA[
Name:     SurfaceArea
Table:    Country
max. Len: 10
Flags:    32769
Type:     4

]]>
  </screen>
 </refsect1>

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

</refentry>

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