mirror of
https://github.com/php/doc-ru.git
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f7dc059834
git-svn-id: https://svn.php.net/repository/phpdoc/ru/trunk@152373 c90b9560-bf6c-de11-be94-00142212c4b1
98 lines
2.9 KiB
XML
98 lines
2.9 KiB
XML
<?xml version="1.0" encoding="windows-1251"?>
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<!-- $Revision: 1.3 $ -->
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<!-- EN-Revision: 1.6 Maintainer: lovchy Status: ready -->
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<!-- splitted from ./en/functions/mysql.xml, last change in rev 1.2 -->
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<refentry id="function.mysql-data-seek">
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<refnamediv>
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<refname>mysql_data_seek</refname>
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<refpurpose>Ïåðåìåùàåò âíóòðåííèé óêàçàòåëü â ðåçóëüòàòå çàïðîñà</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Îïèñàíèå</title>
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<methodsynopsis >
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<type>bool</type><methodname>mysql_data_seek</methodname>
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<methodparam><type>resource</type><parameter>result_identifier</parameter></methodparam>
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<methodparam><type>int</type><parameter>row_number</parameter></methodparam>
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</methodsynopsis>
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<para>
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&return.success;
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</para>
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<para>
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<function>mysql_data_seek</function> ïåðåìåùàåò âíóòðåííèé óêàçàòåëü â
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ðåçóëüòàòå çàïðîñà ê ðÿäó ñ óêàçàííûì íîìåðîì. Ñëåäóþùèé âûçîâ
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<function>mysql_fetch_row</function> âåðí¸ò èìåííî åãî.
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</para>
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<para>
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Ïàðàìåòð <parameter>Row_number</parameter> äîëæåí áûòü çíà÷åíèåì îò 0 äî mysql_num_rows - 1.
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</para>
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<note>
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<para>
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Ôóíêöèÿ <function>mysql_data_seek</function> ìîæåò áûòü èñïîëüçîâàíà
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òîëüêî ñ <function>mysql_query</function>, íî íå ñ
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<function>mysql_unbuffered_query</function>.
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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>Ïðèìåð èñïîëüçîâàíèÿ <function>mysql_data_seek</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$link = mysql_pconnect("localhost", "mysql_user", "mysql_password")
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or die("Could not connect: " . mysql_error());
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mysql_select_db("samp_db")
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or die("Could not select database: " . mysql_error());
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$query = "SELECT last_name, first_name FROM friends";
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$result = mysql_query($query)
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or die("Query failed: " . mysql_error());
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/* ïîëó÷åíèå ðÿäîâ â îáðàòíîì ïîðÿäêå */
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for ($i = mysql_num_rows($result) - 1; $i >= 0; $i--) {
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if (!mysql_data_seek($result, $i)) {
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echo "Cannot seek to row $i: " . mysql_error() . "\n";
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continue;
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}
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if(!($row = mysql_fetch_object($result)))
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continue;
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echo "$row->last_name $row->first_name<br />\n";
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}
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mysql_free_result($result);
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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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Ñì. òàêæå
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<function>mysql_query</function> è
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<function>mysql_num_rows</function>.
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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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