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array-combine.xml
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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: 71e3c74047f04b26aa1be51215d7129e15dc2993 Maintainer: HonestQiao Status: ready -->
<!-- CREDITS: mowangjuanzi, Luffy -->
<refentry xml:id="function.array-combine" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>array_combine</refname>
<refpurpose>
创建一个数组,用一个数组的值作为其键名,另一个数组的值作为其值
</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>array</type><methodname>array_combine</methodname>
<methodparam><type>array</type><parameter>keys</parameter></methodparam>
<methodparam><type>array</type><parameter>values</parameter></methodparam>
</methodsynopsis>
<para>
返回一个 <type>array</type>,用来自
<parameter>keys</parameter> 数组的值作为键名,来自
<parameter>values</parameter> 数组的值作为相应的值。
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>keys</parameter></term>
<listitem>
<para>
将被作为新数组的键。非法的值将会被转换为字符串类型(<type>string</type>)。
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>values</parameter></term>
<listitem>
<para>
将被作为 <type>Array</type> 的值。
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
返回合并后的 <type>array</type>。
</para>
</refsect1>
<refsect1 role="errors">
&reftitle.errors;
<para>
自 PHP 8.0.0 起,如果 <parameter>keys</parameter> 和 <parameter>values</parameter> 的元素数量不同,将会抛出
<classname>ValueError</classname>。在 PHP 8.0.0 之前,会引发 <constant>E_WARNING</constant>。
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>8.0.0</entry>
<entry>
如果每个数组的元素数量不相等,现在 <function>array_combine</function> 将会抛出 <classname>ValueError</classname>,之前此方法返回 &false;。
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>一个 <function>array_combine</function> 简单的例子</title>
<programlisting role="php">
<![CDATA[
<?php
$a = array('green', 'red', 'yellow');
$b = array('avocado', 'apple', 'banana');
$c = array_combine($a, $b);
print_r($c);
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
Array
(
[green] => avocado
[red] => apple
[yellow] => banana
)
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>array_merge</function></member>
<member><function>array_walk</function></member>
<member><function>array_values</function></member>
<member><function>array_map</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->