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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-assoc">
<refnamediv>
<refname>pg_fetch_assoc</refname>
<refpurpose>Fetch a row as an associative array</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>array</type><methodname>pg_fetch_assoc</methodname>
<methodparam><type>resource</type><parameter>result</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>row</parameter></methodparam>
</methodsynopsis>
<para>
<function>pg_fetch_assoc</function> returns an associative array that
corresponds to the fetched row (records).
</para>
<para>
<function>pg_fetch_assoc</function> is equivalent to calling
<function>pg_fetch_array</function> with <constant>PGSQL_ASSOC</constant> as the
optional third parameter. It only returns an associative array.
If you need the numeric indices, use
<function>pg_fetch_row</function>.
</para>
&database.fetch-null;
<para>
<function>pg_fetch_assoc</function> is NOT significantly
slower than using <function>pg_fetch_row</function>, and
is significantly easier to use.
</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>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
An <type>array</type> indexed associatively (by field name).
Each value in the <type>array</type> is represented as a
<type>string</type>. 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>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_assoc</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$conn = pg_connect("dbname=publisher");
if (!$conn) {
echo "An error occured.\n";
exit;
}
$result = pg_query($conn, "SELECT id, author, email FROM authors");
if (!$result) {
echo "An error occured.\n";
exit;
}
while ($row = pg_fetch_assoc($result)) {
echo $row['id'];
echo $row['author'];
echo $row['email'];
}
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>pg_fetch_row</function></member>
<member><function>pg_fetch_array</function></member>
<member><function>pg_fetch_object</function></member>
<member><function>pg_fetch_result</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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