php-doc-en/reference/mssql/functions/mssql-data-seek.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.mssql-data-seek" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>mssql_data_seek</refname>
  <refpurpose>Moves internal row pointer</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>bool</type><methodname>mssql_data_seek</methodname>
   <methodparam><type>resource</type><parameter>result_identifier</parameter></methodparam>
   <methodparam><type>int</type><parameter>row_number</parameter></methodparam>
  </methodsynopsis>
  <para>
   <function>mssql_data_seek</function> moves the internal row
   pointer of the MS SQL result associated with the specified result
   identifier to point to the specified row number, first row being
   number 0. The next call to <function>mssql_fetch_row</function>
   would return that row.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>result_identifier</parameter></term>
     <listitem>
      <para>
       The result resource that is being evaluated.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>row_number</parameter></term>
     <listitem>
      <para>
       The desired row number of the new result pointer.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.success;
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>mssql_data_seek</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
// Connect to MSSQL and select the database
$link = mssql_connect('MANGO\SQLEXPRESS', 'sa', 'phpfi');
mssql_select_db('php', $link);

// Select all people
$result = mssql_query('SELECT [name], [age] FROM [persons] WHERE [age] >= 13');

if (!$result) {
    die('Query failed.');
}

// Select every 4th student in the results
for ($i = mssql_num_rows($result) - 1; $i % 4; $i++) {
    if (!mssql_data_seek($result, $i)) {
        continue;
    }

    // Fetch the row ...
}

// Free the query result
mssql_free_result($result);
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

</refentry>

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