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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.9 $ -->
<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.82 -->
<refentry id="function.pg-fetch-result">
<refnamediv>
<refname>pg_fetch_result</refname>
<refpurpose>Returns values from a result resource</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>mixed</type><methodname>pg_fetch_result</methodname>
<methodparam><type>resource</type><parameter>result</parameter></methodparam>
<methodparam><type>int</type><parameter>row</parameter></methodparam>
<methodparam><type>mixed</type><parameter>field</parameter></methodparam>
</methodsynopsis>
<methodsynopsis>
<type>mixed</type><methodname>pg_fetch_result</methodname>
<methodparam><type>resource</type><parameter>result</parameter></methodparam>
<methodparam><type>mixed</type><parameter>field</parameter></methodparam>
</methodsynopsis>
<para>
<function>pg_fetch_result</function> returns the value of a particular
row and field (column) in a PostgreSQL result resource.
</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>field</parameter></term>
<listitem>
<para>
A <type>string</type> representing the name of the field (column) to fetch, otherwise
and <type>int</type> representing the field number to fetch. Fields are
numbered from 0 upwards.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
PostgreSQL has many built in types and only the basic ones are
directly supported here. All forms of integer database <!--
FIXME: is that still true? PHP supports boolean&null now... -->
<!-- Yes, supporting boolean&null breaks
scripts. pg_fetch_array() can be used instead. I might take of
this issue with additional ini directive. yohgaki@php.net -->
types are returned as <type>integer</type> values. All forms of
float and real types are returned as <type>float</type> values.
Boolean is returned as "t" or "f". All
other types, including arrays are returned as strings formatted
in the same default PostgreSQL manner that you would see in the
<command>psql</command> program. 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, or on any other error.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>pg_fetch_result</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$db = pg_connect("dbname=users user=me") || die();
$res = pg_query($db, "SELECT 1 UNION ALL SELECT 2");
$val = pg_fetch_result($res, 1, 0);
echo "First field in the second row is: ", $val, "\n";
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
First field in the second row is: 2
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>pg_query</function></member>
<member><function>pg_fetch_array</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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sgml-default-dtd-file:"../../../../manual.ced"
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