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62da1c979b
many thanks to Sveta & Irina =) git-svn-id: https://svn.php.net/repository/phpdoc/ru/trunk@178510 c90b9560-bf6c-de11-be94-00142212c4b1
162 lines
4.1 KiB
XML
162 lines
4.1 KiB
XML
<?xml version="1.0" encoding="windows-1251"?>
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<!-- EN-Revision: 1.12 Maintainer: sveta Status: ready -->
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<!-- $Revision: 1.1 $ -->
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<!-- splitted from ./en/functions/array.xml, last change in rev 1.2 -->
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<refentry id="function.list">
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<refnamediv>
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<refname>list</refname>
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<refpurpose>
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Ïðèñâîèòü ïåðåìåííûì èç ñïèñêà çíà÷åíèÿ ïîäîáíî ìàññèâó
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</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>void</type><methodname>list</methodname>
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<methodparam><type>mixed</type><parameter>varname</parameter></methodparam>
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<methodparam rep="repeat"><type>mixed</type><parameter>...</parameter></methodparam>
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</methodsynopsis>
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<para>
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Ïîäîáíî <function>array</function>, ýòî íå ôóíêöèÿ,
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à ÿçûêîâàÿ êîíñòðóêöèÿ. <function>list</function> èñïîëüçóåòñÿ
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äëÿ òîãî, ÷òîáû ïðèñâîèòü ñïèñêó ïåðåìåííûõ çíà÷åíèÿ çà îäíó îïåðàöèþ.
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</para>
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<note>
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<para>
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<function>list</function> ðàáîòàåò òîëüêî ñ ìàññèâàìè, èíäåêñàìè
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êîòîðûõ ÿâëÿþòñÿ ÷èñëà è íóìåðàöèÿ êîòîðûõ íà÷èíàåòñÿ ñ 0.
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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>Ïðèìåðû èñïîëüçîâàíèÿ <function>list</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$info = array('coffee', 'brown', 'caffeine');
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// Ñîñòàâèòü ñïèñîê âñåõ ïåðåìåííûõ
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list($drink, $color, $power) = $info;
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echo "$drink is $color and $power makes it special.
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";
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// Ñîñòàâèòü ñïèñîê òîëüêî íåêîòîðûõ èç íèõ
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list($drink, , $power) = $info;
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echo "$drink has $power.
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";
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// Èëè òîëüêî òðåòüÿ
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list( , , $power) = $info;
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echo "I need $power!
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";
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?>
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]]>
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</programlisting>
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</example>
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</para>
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<para>
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<example>
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<title>Ïðèìåð èñïîëüçîâàíèÿ <function>list</function></title>
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<programlisting role="php">
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<![CDATA[
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<table>
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<tr>
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<th>Employee name</th>
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<th>Salary</th>
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</tr>
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<?php
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$result = mysql_query("SELECT id, name, salary FROM employees", $conn);
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while (list($id, $name, $salary) = mysql_fetch_row($result)) {
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echo " <tr>
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" .
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" <td><a href=\"info.php?id=$id\">$name</a></td>
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" .
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" <td>$salary</td>
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" .
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" </tr>
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";
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}
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?>
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</table>
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]]>
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</programlisting>
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</example>
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</para>
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<warning>
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<para>
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<function>list</function> ïðèñâàèâàåò çíà÷åíèÿ íà÷èíàÿ ñ êðàéíåãî ïðàâîãî
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ïàðàìåòðà. Åñëè âû èñïîëüçóåòå ïðîñòûå ïåðåìåííûå, ìîæåòå íå áåñïîêîèòüñÿ
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îá ýòîì. Íî åñëè âû èñïîëüçóåòå èíäåêñíûå ìàññèâû, âû ìîæåòå îæèäàòü, ÷òî â
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ðåçóëüòàòå âûïîëíåíèÿ ôóíêöèè <function>list</function> âû ïîëó÷èòå òîò æå
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ïîðÿäîê ýëåìåíòîâ, ÷òî è â èñõîäíîì ìàññèâå: ñëåâà íàïðàâî; îäíàêî ýòî íå òàê.
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Îíè áóäóò ïðèñâîåíû â îáðàòíîì ïîðÿäêå.
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</para>
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</warning>
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<para>
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<example>
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<title>Èñïîëüçîâàíèå <function>list</function> ñ èíäåêñàìè ìàññèâîâ</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$info = array('coffee', 'brown', 'caffeine');
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list($a[0], $a[1], $a[2]) = $info;
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var_dump($a);
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?>
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]]>
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</programlisting>
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<para>
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Âûâåäåò (ñðàâíèòå ïîðÿäîê èñõîäíûõ ýëåìåíòîâ ñ ïîðÿäêîì, â
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â êîòîðîì îíè áûëè ïåðåçàïèñàíû ôóíêöèåé <function>list</function>):
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</para>
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<screen>
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<![CDATA[
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array(3) {
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[2]=>
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string(8) "caffeine"
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[1]=>
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string(5) "brown"
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[0]=>
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string(6) "coffee"
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}
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]]>
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</screen>
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</example>
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</para>
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<para>
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Ñì. òàêæå <function>each</function>, <function>array</function>
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è <function>extract</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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