mirror of
https://github.com/sigmasternchen/php-doc-en
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37771eeb9e
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@165096 c90b9560-bf6c-de11-be94-00142212c4b1
70 lines
1.7 KiB
XML
70 lines
1.7 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.8 $ -->
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<!-- splitted from ./en/functions/array.xml, last change in rev 1.2 -->
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<refentry id="function.key">
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<refnamediv>
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<refname>key</refname>
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<refpurpose>Fetch a key from an associative 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>mixed</type><methodname>key</methodname>
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<methodparam><type>array</type><parameter>&array</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>key</function> returns the index element of the
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current array position.
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</para>
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<para>
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<example>
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<title><function>key</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$array = array(
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'fruit1' => 'apple',
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'fruit2' => 'orange',
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'fruit3' => 'grape',
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'fruit4' => 'apple',
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'fruit5' => 'apple');
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// this cycle echoes all associative array
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// key where value equals "apple"
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while ($fruit_name = current($array)) {
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if ($fruit_name == 'apple') {
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echo key($array).'<br />';
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}
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next($array);
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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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See also <function>current</function> and <function>next</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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