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git-svn-id: https://svn.php.net/repository/phpdoc/es/trunk@297973 c90b9560-bf6c-de11-be94-00142212c4b1
133 lines
3.3 KiB
XML
133 lines
3.3 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<!-- EN-Revision: 96c9d88bad9a7d7d44bfb7f26c226df7ee9ddf26 Maintainer: jpberdejo Status: ready -->
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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.array-flip">
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<refnamediv>
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<refname>array_flip</refname>
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<refpurpose>Intercambia todas las keys con sus valores asociados en un array</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_flip</methodname>
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<methodparam><type>array</type><parameter>trans</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>array_flip</function> retorna un <type>array</type> en orden
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volteado, es decir, las keys de <parameter>trans</parameter> se convierten en valores y los valores
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de <parameter>trans</parameter> se convierten en keys.
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</para>
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<para>
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Se debe tener en cuenta que los valores de <parameter>trans</parameter> necesitan ser keys
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válidas, es decir, que necesitan ser entre un <type>integer</type> o un
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<type>string</type>. Una advertencia será emitida si un valor tiene el tipo
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erróneo y el par clave/valor en cuestión <emphasis>no será
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volteado</emphasis>
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</para>
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<para>
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Si un valor tiene varias ocurrencias, la última key será
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usada como su valor y todos los demás se perderán.
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</para>
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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>trans</parameter></term>
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<listitem>
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<para>
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Un array de pares key/valor para ser volteados.
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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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Retorna el array volteado si es exitosa y &null; si falla.
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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>Ejemplo de <function>array_flip</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$trans = array_flip($trans);
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$original = strtr($str, $trans);
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?>
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]]>
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</programlisting>
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</example>
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</para>
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<para>
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<example>
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<title>Ejemplo de <function>array_flip</function> : collision</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$trans = array("a" => 1, "b" => 1, "c" => 2);
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$trans = array_flip($trans);
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print_r($trans);
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?>
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]]>
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</programlisting>
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<para>
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ahora <varname>$trans</varname> es:
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</para>
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<screen>
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<![CDATA[
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Array
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(
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[1] => b
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[2] => c
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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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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>array_values</function></member>
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<member><function>array_keys</function></member>
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<member><function>array_reverse</function></member>
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</simplelist>
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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:"~/.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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