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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 297028 $ -->
<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.pg-fetch-object">
<refnamediv>
<refname>pg_fetch_object</refname>
<refpurpose>Fetch a row as an object</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>object</type><methodname>pg_fetch_object</methodname>
<methodparam><type>resource</type><parameter>result</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>row</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>result_type</parameter><initializer>PGSQL_ASSOC</initializer></methodparam>
</methodsynopsis>
<methodsynopsis>
<type>object</type><methodname>pg_fetch_object</methodname>
<methodparam><type>resource</type><parameter>result</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>row</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>class_name</parameter></methodparam>
<methodparam choice="opt"><type>array</type><parameter>params</parameter></methodparam>
</methodsynopsis>
<para>
<function>pg_fetch_object</function> returns an object with
properties that correspond to the fetched row's field names. It can optionally
instantiate an object of a specific class, and pass parameters to that
class's constructor.
</para>
&database.fetch-null;
<para>
Speed-wise, the function is identical to
<function>pg_fetch_array</function>, and almost as fast as
<function>pg_fetch_row</function> (the difference is
insignificant).
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>result</parameter></term>
<listitem>
<para>
PostgreSQL query result resource, returned by <function>pg_query</function>,
<function>pg_query_params</function> or <function>pg_execute</function>
(among others).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>row</parameter></term>
<listitem>
<para>
Row number in result to fetch. Rows are numbered from 0 upwards. If omitted,
next row is fetched.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>result_type</parameter></term>
<listitem>
<para>
Ignored and deprecated.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>class_name</parameter></term>
<listitem>
<para>
The name of the class to instantiate, set the properties of and return.
If not specified, a <classname>stdClass</classname> object is returned.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>params</parameter></term>
<listitem>
<para>
An optional <type>array</type> of parameters to pass to the constructor
for <parameter>class_name</parameter> objects.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
An <type>object</type> with one attribute for each field
name in the result. Database <literal>NULL</literal>
values are returned as &null;.
</para>
<para>
&false; is returned if <parameter>row</parameter> exceeds the number
of rows in the set, there are no more rows, or on any other error.
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>5.0.0</entry>
<entry>
<parameter>class_name</parameter> and <parameter>params</parameter>
were added. The old form with <parameter>result_type</parameter>
still exists for backwards compatibility.
</entry>
</row>
<row>
<entry>4.3.0</entry>
<entry>
<parameter>result_type</parameter> default changed from
<constant>PGSQL_BOTH</constant> to <constant>PGSQL_ASSOC</constant>,
since the numeric index was illegal.
</entry>
</row>
<row>
<entry>4.1.0</entry>
<entry>
The parameter <parameter>row</parameter> became optional.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>pg_fetch_object</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$database = "store";
$db_conn = pg_connect("host=localhost port=5432 dbname=$database");
if (!$db_conn) {
echo "Failed connecting to postgres database $database\n";
exit;
}
$qu = pg_query($db_conn, "SELECT * FROM books ORDER BY author");
while ($data = pg_fetch_object($qu)) {
echo $data->author . " (";
echo $data->year . "): ";
echo $data->title . "<br />";
}
pg_free_result($qu);
pg_close($db_conn);
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>pg_query</function></member>
<member><function>pg_fetch_array</function></member>
<member><function>pg_fetch_assoc</function></member>
<member><function>pg_fetch_row</function></member>
<member><function>pg_fetch_result</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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