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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- Generated by xml_proto.php v2.2. Found in /scripts directory of phpdoc. -->
<refentry xml:id="function.db2-fetch-array" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>db2_fetch_array</refname>
<refpurpose>
Returns an array, indexed by column position, representing a row in a result set
</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type class="union"><type>array</type><type>false</type></type><methodname>db2_fetch_array</methodname>
<methodparam><type>resource</type><parameter>stmt</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>row_number</parameter><initializer>-1</initializer></methodparam>
</methodsynopsis>
<para>
Returns an array, indexed by column position, representing a row in a result
set. The columns are 0-indexed.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>stmt</parameter></term>
<listitem>
<para>
A valid <literal>stmt</literal> resource containing a result set.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>row_number</parameter></term>
<listitem>
<para>
Requests a specific 1-indexed row from the result set. Passing this
parameter results in a PHP warning if the result set uses a
forward-only cursor.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns a 0-indexed array with column values indexed by the column position
representing the next or requested row in the result set. Returns &false; if
there are no rows left in the result set, or if the row requested by
<parameter>row_number</parameter> does not exist in the result set.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Iterating through a forward-only cursor</title>
<para>
If you call <function>db2_fetch_array</function> without a specific row
number, it automatically retrieves the next row in the result set.
</para>
<programlisting role="php">
<![CDATA[
<?php
$sql = "SELECT id, name, breed, weight FROM animals ORDER BY breed";
$stmt = db2_prepare($conn, $sql);
$result = db2_execute($stmt);
while ($row = db2_fetch_array($stmt)) {
printf ("%-5d %-16s %-32s %10s\n",
$row[0], $row[1], $row[2], $row[3]);
}
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
0 Pook cat 3.20
5 Rickety Ride goat 9.70
2 Smarty horse 350.00
]]>
</screen>
</example>
<example>
<title>Retrieving specific rows with <function>db2_fetch_array</function>
from a scrollable cursor</title>
<para>
If your result set uses a scrollable cursor, you can call
<function>db2_fetch_array</function> with a specific row number. The
following example retrieves every other row in the result set, starting
with the second row.
</para>
<programlisting role="php">
<![CDATA[
<?php
$sql = "SELECT id, name, breed, weight FROM animals ORDER BY breed";
$result = db2_exec($stmt, $sql, array('cursor' => DB2_SCROLLABLE));
$i=2;
while ($row = db2_fetch_array($result, $i)) {
printf ("%-5d %-16s %-32s %10s\n",
$row[0], $row[1], $row[2], $row[3]);
$i = $i + 2;
}
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
0 Pook cat 3.20
5 Rickety Ride goat 9.70
2 Smarty horse 350.00
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>db2_fetch_assoc</function></member>
<member><function>db2_fetch_both</function></member>
<member><function>db2_fetch_object</function></member>
<member><function>db2_fetch_row</function></member>
<member><function>db2_result</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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