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130 lines
3.9 KiB
XML
130 lines
3.9 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<!-- EN-Revision: 9e0f03ac354d797d1d16c0fcc1663e5e170f2727 Maintainer: daijie Status: ready -->
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<refentry xml:id="function.array-intersect-assoc" xmlns="http://docbook.org/ns/docbook">
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<refnamediv> <refname>array_intersect_assoc</refname>
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<refpurpose>带索引检查计算数组的交集</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>array</type><methodname>array_intersect_assoc</methodname>
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<methodparam><type>array</type><parameter>array</parameter></methodparam>
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<methodparam rep="repeat"><type>array</type><parameter>arrays</parameter></methodparam>
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</methodsynopsis>
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<simpara>
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<function>array_intersect_assoc</function> 返回一个数组，该数组包含了所有在
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<parameter>array</parameter> 和其它参数数组中同时存在的值。注意和
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<function>array_intersect</function> 不同的是，键名也用于比较。
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</simpara>
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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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要检查的数组，作为主值。
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>arrays</parameter></term>
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<listitem>
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<para>
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要被对比的数组。
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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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返回一个关联数组，该数组包含了所有在
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<parameter>array</parameter> 和其它参数数组中同时存在的值。
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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_intersect_assoc</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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$array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red");
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$array2 = array("a" => "green", "b" => "yellow", "blue", "red");
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$result_array = array_intersect_assoc($array1, $array2);
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print_r($result_array);
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?>
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]]>
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</programlisting>
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&example.outputs;
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<screen>
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<![CDATA[
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Array
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(
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[a] => green
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)
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]]>
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</screen>
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</example>
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</para>
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<simpara>
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上面例子中可以看到，只有键值对 <literal>"a" =>
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"green"</literal> 在两个数组中都存在，从而被返回。
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值 <literal>"red"</literal> 没有被返回，是因为在
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<varname>$array1</varname> 中它的键名是 <literal>0</literal>
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而在 <varname>$array2</varname> 中 "red" 的键名是
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<literal>1</literal>，键 <literal>"b"</literal> 没有返回的原因是，它的值和其他数组不同。
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</simpara>
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<simpara>
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仅在 <literal>(string) $elem1 === (string) $elem2 </literal> 时，
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<literal>key => value</literal> 才被认为是相等的。
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也就是说使用了严格的类型检查，字符串的表达形式必须相同。
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<!-- TODO: example of it... -->
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</simpara>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<simplelist>
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<member><function>array_intersect</function></member>
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<member><function>array_uintersect_assoc</function></member>
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<member><function>array_intersect_uassoc</function></member>
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<member><function>array_uintersect_uassoc</function></member>
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<member><function>array_diff</function></member>
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<member><function>array_diff_assoc</function></member>
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</simplelist>
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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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