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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@117504 c90b9560-bf6c-de11-be94-00142212c4b1
117 lines
3.6 KiB
XML
117 lines
3.6 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.7 $ -->
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<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
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<refentry id="function.pg-fetch-array">
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<refnamediv>
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<refname>pg_fetch_array</refname>
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<refpurpose>Fetch a row as an array</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>array</type><methodname>pg_fetch_array</methodname>
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<methodparam><type>resource</type><parameter>result</parameter></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>row</parameter></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>result_type</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>pg_fetch_array</function> returns an array that
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corresponds to the fetched row (tuples/records). It returns
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&false;, if there are no more rows.
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</para>
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<para>
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<function>pg_fetch_array</function> is an extended version of
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<function>pg_fetch_row</function>. In addition to storing the
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data in the numeric indices (field index) to the result array, it
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also stores the data in associative indices (field name) by
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default.
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</para>
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<para>
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<parameter>row</parameter> is row (record) number to be
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retrieved. First row is 0.
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</para>
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<para>
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<parameter>result_type</parameter> is an optional parameter that controls
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how the return value is initialized.
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<parameter>result_type</parameter> is a constant and can take the
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following values: <constant>PGSQL_ASSOC</constant>,
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<constant>PGSQL_NUM</constant>, and <constant>PGSQL_BOTH</constant>.
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<function>pg_fetch_array</function> returns associative array
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that has field name as key for <constant>PGSQL_ASSOC</constant>, field index as key
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with <constant>PGSQL_NUM</constant> and both field name/index as key with
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<constant>PGSQL_BOTH</constant>. Default is <constant>PGSQL_BOTH</constant>.
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<note>
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<para>
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<parameter>result_type</parameter> was added in PHP 4.0.
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</para>
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</note>
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</para>
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<para>
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<function>pg_fetch_array</function> is NOT significantly
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slower than using <function>pg_fetch_row</function>, while it
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provides a significant ease of use.
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</para>
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<para>
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<example>
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<title>PostgreSQL fetch array</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$conn = pg_pconnect ("dbname=publisher");
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if (!$conn) {
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echo "An error occured.\n";
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exit;
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}
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$result = pg_query ($conn, "SELECT * FROM authors");
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if (!$result) {
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echo "An error occured.\n";
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exit;
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}
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$arr = pg_fetch_array ($result, 0, PGSQL_NUM);
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echo $arr[0] . " <- array\n";
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$arr = pg_fetch_array ($result, 1, PGSQL_ASSOC);
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echo $arr["author"] . " <- array\n";
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?>
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]]>
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</programlisting>
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</example>
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</para>
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<para>
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See also
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<function>pg_fetch_row</function>,
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<function>pg_fetch_object</function> and
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<function>pg_fetch_result</function>.
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</para>
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<note>
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<para>
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From 4.1.0, <parameter>row</parameter> became optional.
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Calling <function>pg_fetch_array</function> will increment
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internal row counter by 1.
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</para>
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</note>
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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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