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252bcfe266
git-svn-id: https://svn.php.net/repository/phpdoc/zh/trunk@324983 c90b9560-bf6c-de11-be94-00142212c4b1
143 lines
3.6 KiB
XML
Executable File
143 lines
3.6 KiB
XML
Executable File
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<!-- EN-Revision: 96c9d88bad9a7d7d44bfb7f26c226df7ee9ddf26 Maintainer: HonestQiao Status: ready -->
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<!-- Reviewed: no Maintainer: HonestQiao -->
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<refentry xml:id="function.array-shift" xmlns="http://docbook.org/ns/docbook">
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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 role="description">
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&reftitle.description;
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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 role="reference">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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&array.resetspointer;
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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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<?php
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$stack = array("orange", "banana", "apple", "raspberry");
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$fruit = array_shift($stack);
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print_r($stack);
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?>
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]]>
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</programlisting>
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<para>
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这将使 <varname>$stack</varname> 剩下 3 个单元：
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</para>
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<screen role="php">
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<![CDATA[
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Array
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(
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[0] => banana
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[1] => apple
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[2] => raspberry
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)
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]]>
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</screen>
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<para>
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并且 <literal>orange</literal> 被赋给了 <varname>$fruit</varname>。
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</para>
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</example>
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<para>
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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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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>array</parameter></term>
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<listitem>
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<para>
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The input array.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Returns the shifted value, or &null; if <parameter>array</parameter> is
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empty or is not an array.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title><function>array_shift</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$stack = array("orange", "banana", "apple", "raspberry");
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$fruit = array_shift($stack);
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print_r($stack);
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?>
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]]>
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</programlisting>
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&example.outputs;
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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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<para>
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and <literal>orange</literal> will be assigned to
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<varname>$fruit</varname>.
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</para>
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</example>
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>array_unshift</function></member>
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<member><function>array_push</function></member>
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<member><function>array_pop</function></member>
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</simplelist>
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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:"~/.phpdoc/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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