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iterator-to-array.xml
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<?xml version='1.0' encoding='utf-8'?>
<!-- $Revision$ -->
<!-- EN-Revision: 70ac605e66b5ce0c03a345df92297f3e03f088ca Maintainer: HonestQiao Status: ready -->
<!-- CREDITS: mowangjuanzi -->
<refentry xml:id="function.iterator-to-array" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>iterator_to_array</refname>
<refpurpose>复制迭代器中的元素到数组</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>array</type><methodname>iterator_to_array</methodname>
<methodparam><type class="union"><type>Traversable</type><type>array</type></type><parameter>iterator</parameter></methodparam>
<methodparam choice="opt"><type>bool</type><parameter>preserve_keys</parameter><initializer>&true;</initializer></methodparam>
</methodsynopsis>
<para>
复制迭代器中的元素到数组。
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>iterator</parameter></term>
<listitem>
<para>
被复制的迭代器。
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>preserve_keys</parameter></term>
<listitem>
<para>
是否使用迭代器元素键作为索引。
</para>
<para>
如果键是 <type>array</type> 或 <type>object</type>,将会生成警告。&null;
键将会转换为空字符串,<type>float</type> 键将截断为对应的 <type>int</type>,<type>resource</type>
键将生成警告并转换为它们的资源 ID,<type>bool</type> 键将转换为整数。
</para>
<note>
<para>
如果此参数未设置或为 &true;,则覆盖重复的键。指定键的最后一个值将在返回的 <type>array</type>
中。设置此参数为 &false; 以获得任何情况下的所有值。
</para>
</note>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
一个数组,包含迭代器中的元素。
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>8.2.0</entry>
<entry>
<parameter>iterator</parameter> 的类型从 <type>Traversable</type>
扩展为 <type class="union"><type>Traversable</type><type>array</type></type>。
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>iterator_to_array</function> 示例</title>
<programlisting role="php">
<![CDATA[
<?php
$iterator = new ArrayIterator(array('recipe'=>'pancakes', 'egg', 'milk', 'flour'));
var_dump(iterator_to_array($iterator, true));
var_dump(iterator_to_array($iterator, false));
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
array(4) {
["recipe"]=>
string(8) "pancakes"
[0]=>
string(3) "egg"
[1]=>
string(4) "milk"
[2]=>
string(5) "flour"
}
array(4) {
[0]=>
string(8) "pancakes"
[1]=>
string(3) "egg"
[2]=>
string(4) "milk"
[3]=>
string(5) "flour"
}
]]>
</screen>
</example>
</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
-->