mirror of
https://github.com/php/doc-zh.git
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9912944367
git-svn-id: https://svn.php.net/repository/phpdoc/zh/trunk@95633 c90b9560-bf6c-de11-be94-00142212c4b1
86 lines
2.3 KiB
XML
Executable File
86 lines
2.3 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: 1.4 Maintainer: dallas Status: ready -->
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<refentry id="function.compact">
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<refnamediv>
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<refname>compact</refname>
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<refpurpose>
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建立一个数组，包括变量名和它们的值
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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>array</type><methodname>compact</methodname>
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<methodparam><type>mixed</type><parameter>varname</parameter></methodparam>
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<methodparam choice="opt"><type>mixed</type><parameter>...</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>compact</function> 接受可变的参数数目。每个参数可以是一个包括变量名的字符串或者是一个包含变量名的数组，该数组中还可以包含其它单元内容为变量名的数组，
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<function>compact</function> 可以递归处理。
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</para>
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<para>
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对每个参数，<function>compact</function>
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在当前的符号表中查找该变量名并将它添加到输出的数组中，变量名成为键名而变量的内容成为该键的值。简单说，它做的事和
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<function>extract</function> 正好相反。返回将所有变量添加进去后的数组。
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</para>
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<para>
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任何没有设定为变量名的字符串都被跳过。
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</para>
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<para>
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<example>
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<title><function>compact</function> 例子</title>
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<programlisting role="php">
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<![CDATA[
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$city = "San Francisco";
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$state = "CA";
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$event = "SIGGRAPH";
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$location_vars = array ("city", "state");
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$result = compact ("event", "nothing_here", $location_vars);
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]]>
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</programlisting>
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<para>
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经过处理后，<varname>$result</varname> 为：
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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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[event] => SIGGRAPH
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[city] => San Francisco
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[state] => CA
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)
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]]>
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</screen>
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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>extract</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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