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array-intersect.xml
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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: 3ce14fde5cd5f15171a7ed2b64fdc7bd652c3842 Maintainer: seros Status: ready -->
<!-- Reviewed: yes Maintainer: seros -->
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.array-intersect">
<refnamediv>
<refname>array_intersect</refname>
<refpurpose>Calcula la intersección de arrays</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>array</type><methodname>array_intersect</methodname>
<methodparam><type>array</type><parameter>array1</parameter></methodparam>
<methodparam><type>array</type><parameter>array2</parameter></methodparam>
<methodparam choice="opt"><type>array</type><parameter>...</parameter></methodparam>
</methodsynopsis>
<para>
<function>array_intersect</function> retorna un array
que contiene todos los valores de <parameter>array1</parameter>
que están presentes en todos los argumentos.
Observe que las claves se mantienen.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>array1</parameter></term>
<listitem>
<para>
Array con los valores maestros a verificar.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>array2</parameter></term>
<listitem>
<para>
Un array con el que comparar los valores.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>...</parameter></term>
<listitem>
<para>
Una lista variable de arrays para comparar.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Retorna un array que contiene todos los valores de
<parameter>array1</parameter> cuyos valores existen en todos los parámetros.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Ejemplo de <function>array_intersect</function></title>
<programlisting role="php">
<![CDATA[
<?php
$array1 = array("a" => "green", "red", "blue");
$array2 = array("b" => "green", "yellow", "red");
$result = array_intersect($array1, $array2);
print_r($result);
?>
]]>
</programlisting>
&example.outputs;
<screen role="php">
<![CDATA[
Array
(
[a] => green
[0] => red
)
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
<note>
<simpara>
Dos elementos son considerados iguales si y sólo si
<literal>(string) $elem1 === (string) $elem2</literal>. Es decir:
cuando la representación de string es la misma.
<!-- TODO: example of it... -->
</simpara>
</note>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>array_intersect_assoc</function></member>
<member><function>array_diff</function></member>
<member><function>array_diff_assoc</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
-->