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git-svn-id: https://svn.php.net/repository/phpdoc/ru/trunk@168745 c90b9560-bf6c-de11-be94-00142212c4b1
98 lines
3.2 KiB
XML
98 lines
3.2 KiB
XML
<?xml version="1.0" encoding="windows-1251"?>
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<!-- EN-Revision: 1.9 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.array-search">
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<refnamediv>
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<refname>array_search</refname>
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<refpurpose>
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Îñóùåñòâëÿåò ïîèñê äàííîãî çíà÷åíèÿ â ìàññèâå è âîçâðàùàåò
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ñîîòâåòñòâóþùèé êëþ÷ â ñëó÷àå óäà÷è
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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>mixed</type><methodname>array_search</methodname>
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<methodparam><type>mixed</type><parameter>needle</parameter></methodparam>
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<methodparam><type>array</type><parameter>haystack</parameter></methodparam>
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<methodparam choice="opt"><type>bool</type><parameter>strict</parameter></methodparam>
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</methodsynopsis>
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<para>
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Èùåò â <parameter>haystack</parameter> çíà÷åíèå
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<parameter>needle</parameter> è âîçâðàùàåò êëþ÷, åñëè òàêîâîå ïðèñóòñòâóåò
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â ìàññèâå, &false; â ïðîòèâíîì ñëó÷àå.
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</para>
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<note>
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<para>
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Åñëè <parameter>needle</parameter> ÿâëÿåòñÿ ñòðîêîé, ïðîèçâîäèòñÿ
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ðåãèñòðî-çàâèñèìîå ñðàâíåíèå.
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</para>
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</note>
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<note>
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<para>
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Äî PHP 4.2.0, <function>array_search</function> ïðè íåóäà÷å âîçâðàùàëà
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&null; âìåñòî &false;.
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</para>
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</note>
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<para>
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Åñëè âû ïåðåäàäèòå çíà÷åíèå &true; â êà÷åñòâå íåîáÿçàòåëüíîãî òðåòüåãî
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ïàðàìåòðà <parameter>strict</parameter>,
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ôóíêöèÿ <function>array_search</function>
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òàêæå ïðîâåðèò òèï <parameter>needle</parameter>
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â ìàññèâå <parameter>haystack</parameter>.
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</para>
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<para>
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Åñëè <parameter>needle</parameter> ïðèñóòñòâóåò â
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<parameter>haystack</parameter> áîëåå îäíîãî ðàçà, áóäåò âîçâðàù¸í
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ïåðâûé íàéäåííûé êëþ÷. Äëÿ òîãî, ÷òîáû âîçâðàòèòü êëþ÷è äëÿ âñåõ íàéäåííûõ çíà÷åíèé,
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èñïîëüçóéòå ôóíêöèþ <function>array_keys</function> ñ íåîáÿçàòåëüíûì ïàðàìåòðîì
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<parameter>search_value</parameter>.
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</para>
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<para>
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<example>
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<title>Ïðèìåð èñïîëüçîâàíèÿ <function>array_search</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$array = array(0 => 'blue', 1 => 'red', 2 => 0x000000, 3 => 'green', 4 => 'red');
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$key = array_search('red', $array); // $key = 1;
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$key = array_search('green', $array); // $key = 2; (0x000000 == 0 == 'green')
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$key = array_search('green', $array, true); // $key = 3;
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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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&return.falseproblem;
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<para>
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Ñì. òàêæå <function>array_keys</function>,
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<function>array_values</function>,
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<function>array_key_exists</function>, è
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<function>in_array</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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