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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@117503 c90b9560-bf6c-de11-be94-00142212c4b1
137 lines
4 KiB
XML
137 lines
4 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.9 $ -->
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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-object">
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<refnamediv>
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<refname>pg_fetch_object</refname>
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<refpurpose>Fetch a row as an object</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>object</type><methodname>pg_fetch_object</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_object</function> returns an object with
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properties that correspond to the fetched row. It returns &false;
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if there are no more rows or error.
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</para>
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<para>
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<function>pg_fetch_object</function> is similar to
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<function>pg_fetch_array</function>, with one difference - an
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object is returned, instead of an array. Indirectly, that means
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that you can only access the data by the field names, and not by
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their offsets (numbers are illegal property names).
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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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Speed-wise, the function is identical to
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<function>pg_fetch_array</function>, and almost as quick as
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<function>pg_fetch_row</function> (the difference is
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insignificant).
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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> is optional.
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</para>
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<para>
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From 4.3.0, <parameter>result_type</parameter> is default to PGSQL_ASSOC while
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older versions' default was PGSQL_BOTH. There is no use for numeric property,
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since numeric property name is invalid in PHP.
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</para>
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<para>
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<parameter>result_type</parameter> may be deleted in future versions.
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</para>
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</note>
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<para>
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<example>
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<title>Postgres fetch object</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$database = "verlag";
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$db_conn = pg_connect ("host=localhost port=5432 dbname=$database");
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if (!$db_conn): ?>
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<H1>Failed connecting to postgres database <?php echo $database ?></H1> <?php
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exit;
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endif;
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$qu = pg_query ($db_conn, "SELECT * FROM verlag ORDER BY autor");
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$row = 0; // postgres needs a row counter other dbs might not
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while ($data = pg_fetch_object ($qu, $row)) {
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echo $data->autor." (";
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echo $data->jahr ."): ";
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echo $data->titel."<BR>";
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$row++;
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}
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?>
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<PRE>
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<?php
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$fields[] = Array ("autor", "Author");
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$fields[] = Array ("jahr", " Year");
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$fields[] = Array ("titel", " Title");
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$row= 0; // postgres needs a row counter other dbs might not
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while ($data = pg_fetch_object ($qu, $row)) {
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echo "----------\n";
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reset ($fields);
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while (list (,$item) = each ($fields)):
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echo $item[1].": ".$data->$item[0]."\n";
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endwhile;
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$row++;
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}
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echo "----------\n";
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?>
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</PRE>
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<?php
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pg_free_result ($qu);
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pg_close ($db_conn);
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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_query</function>,
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<function>pg_fetch_array</function>,
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<function>pg_fetch_row</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_object</function> will increment
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internal row counter 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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