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https://github.com/sigmasternchen/php-doc-en
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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@189137 c90b9560-bf6c-de11-be94-00142212c4b1
139 lines
3.9 KiB
XML
139 lines
3.9 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.10 $ -->
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<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.82 -->
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<refentry id="function.pg-fetch-result">
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<refnamediv>
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<refname>pg_fetch_result</refname>
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<refpurpose>Returns values from a result resource</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>string</type><methodname>pg_fetch_result</methodname>
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<methodparam><type>resource</type><parameter>result</parameter></methodparam>
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<methodparam><type>int</type><parameter>row</parameter></methodparam>
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<methodparam><type>mixed</type><parameter>field</parameter></methodparam>
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</methodsynopsis>
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<methodsynopsis>
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<type>string</type><methodname>pg_fetch_result</methodname>
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<methodparam><type>resource</type><parameter>result</parameter></methodparam>
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<methodparam><type>mixed</type><parameter>field</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>pg_fetch_result</function> returns the value of a particular
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row and field (column) in a PostgreSQL result resource.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>result</parameter></term>
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<listitem>
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<para>
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PostgreSQL query result resource, returned by <function>pg_query</function>,
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<function>pg_query_params</function> or <function>pg_execute</function>
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(among others).
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>row</parameter></term>
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<listitem>
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<para>
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Row number in result to fetch. Rows are numbered from 0 upwards. If omitted,
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next row is fetched.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>field</parameter></term>
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<listitem>
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<para>
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A <type>string</type> representing the name of the field (column) to fetch, otherwise
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and <type>int</type> representing the field number to fetch. Fields are
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numbered from 0 upwards.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Boolean is returned as "t" or "f". All
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other types, including arrays are returned as strings formatted
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in the same default PostgreSQL manner that you would see in the
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<command>psql</command> program. Database <literal>NULL</literal>
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values are returned as &null;.
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</para>
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<para>
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&false; is returned if <parameter>row</parameter> exceeds the number
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of rows in the set, or on any other error.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title><function>pg_fetch_result</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$db = pg_connect("dbname=users user=me") || die();
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$res = pg_query($db, "SELECT 1 UNION ALL SELECT 2");
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$val = pg_fetch_result($res, 1, 0);
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echo "First field in the second row is: ", $val, "\n";
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?>
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]]>
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</programlisting>
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&example.outputs;
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<screen>
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<![CDATA[
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First field in the second row is: 2
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]]>
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</screen>
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</example>
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>pg_query</function></member>
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<member><function>pg_fetch_array</function></member>
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</simplelist>
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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