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https://github.com/sigmasternchen/php-doc-en
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db8088a4bc
as the value. This almost closes bug #20394 git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@135353 c90b9560-bf6c-de11-be94-00142212c4b1
83 lines
2.7 KiB
XML
83 lines
2.7 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.7 $ -->
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<!-- splitted from ./en/functions/array.xml, last change in rev 1.2 -->
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<refentry id="function.current">
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<refnamediv>
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<refname>current</refname>
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<refpurpose>Return the current element in an 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>current</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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Every array has an internal pointer to its "current" element,
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which is initialized to the first element inserted into the
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array.
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</para>
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<para>
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The <function>current</function> function simply returns the
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value of the array element that's currently being pointed to by the
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internal pointer. It does not move the pointer in any way. If the
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internal pointer points beyond the end of the elements list,
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<function>current</function> returns &false;.
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<warning>
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<para>
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If the array contains empty elements (0 or "", the empty
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string) then this function will return &false;
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for these elements as well. This makes it impossible to
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determine if you are really at the end of the list in such
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an array using <function>current</function>. To properly
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traverse an array that may contain empty elements, use the
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<function>each</function> function.
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</para>
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</warning>
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</para>
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<para>
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<example>
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<title>Example use of <function>current</function> and friends</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$transport = array('foot', 'bike', 'car', 'plane');
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$mode = current($transport); // $mode = 'foot';
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$mode = next($transport); // $mode = 'bike';
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$mode = current($transport); // $mode = 'bike';
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$mode = prev($transport); // $mode = 'foot';
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$mode = end($transport); // $mode = 'plane';
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$mode = current($transport); // $mode = 'plane';
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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>end</function>, <function>key</function>,
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<function>next</function>, <function>prev</function>, and
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<function>reset</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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