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877f5fa4fc
git-svn-id: https://svn.php.net/repository/phpdoc/zh/trunk@95317 c90b9560-bf6c-de11-be94-00142212c4b1
75 lines
2.0 KiB
XML
Executable File
75 lines
2.0 KiB
XML
Executable File
<?xml version="1.0" encoding="gb2312"?>
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<!-- $Revision: 1.1 $ -->
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<!-- $Author: dallas $ -->
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<!-- EN-Revision: 1.5 Maintainer: dallas Status: ready -->
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<refentry id="function.array-shift">
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<refnamediv>
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<refname>array_shift</refname>
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<refpurpose>
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将数组开头的单元移出数组
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</refpurpose>
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</refnamediv>
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<refsect1>
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<title>说明</title>
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<methodsynopsis>
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<type>mixed</type><methodname>array_shift</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>array_shift</function> 将
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<parameter>array</parameter> 的第一个单元移出并作为结果返回，将
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<parameter>array</parameter> 的长度减一并将所有其它单元向前移动一位。所有的数字键名将改为从零开始计数，文字键名将不变。如果
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<parameter>array</parameter> 为空（或者不是数组），则返回 &null;。
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</para>
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<para>
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<example>
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<title><function>array_shift</function> 例子</title>
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<programlisting role="php">
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<![CDATA[
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$stack = array ("orange", "banana", "apple", "raspberry");
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$fruit = array_shift ($stack);
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]]>
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</programlisting>
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<para>
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这将使 <varname>$stack</varname> 剩下 3 个单元：
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<screen role="php">
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<![CDATA[
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Array
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(
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[0] => banana
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[1] => apple
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[2] => raspberry
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)
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]]>
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</screen>
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并且 <literal>orange</literal> 被赋给了 <varname>$fruit</varname>。
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</para>
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</example>
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</para>
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<para>
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参见 <function>array_unshift</function>，<function>array_push</function> 和 <function>array_pop</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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