php-doc-en/reference/maxdb/functions/maxdb-field-seek.xml

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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.maxdb-field-seek">
 <refnamediv>
  <refname>maxdb_field_seek</refname>
  <refname>maxdb_result::field_seek</refname>
  <refpurpose>Set result pointer to a specified field offset</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <para>&style.procedural;</para>
  <methodsynopsis>
   <type>bool</type><methodname>maxdb_field_seek</methodname>
   <methodparam><type>resource</type><parameter>result</parameter></methodparam>
   <methodparam><type>int</type><parameter>fieldnr</parameter></methodparam>
  </methodsynopsis>
  <para>&style.oop;</para>
  <methodsynopsis>
   <type>bool</type><methodname>maxdb_result::field_seek</methodname>
   <methodparam><type>int</type><parameter>fieldnr</parameter></methodparam>
  </methodsynopsis>
  <para>
   Sets the field cursor to the given offset. The next call to <function>maxdb_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="returnvalues">
  &reftitle.returnvalues;
  <para>
   <function>maxdb_field_seek</function> returns previuos value of field cursor.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <example>
   <title>&style.oop;</title>
   <programlisting role="php">
<![CDATA[
<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");

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

$query = "SELECT name, cno from hotel.customer ORDER BY cno";

if ($result = $maxdb->query($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 */
$maxdb->close();
?>
]]>
   </programlisting>
  </example>
  <example>
   <title>&style.procedural;</title>
   <programlisting role="php">
<![CDATA[
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");

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

$query = "SELECT name, cno from hotel.customer ORDER BY cno";

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

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

   maxdb_free_result($result);
}

/* close connection */
maxdb_close($link);
?>
]]>
   </programlisting>
  </example>
  &example.outputs.similar;
  <screen>
<![CDATA[
Name:     NAME
Table:
max. Len: 10
Flags:    -1
Type:     2
]]>
  </screen>
 </refsect1>

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

</refentry>

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