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git-svn-id: https://svn.php.net/repository/phpdoc/es/trunk@331858 c90b9560-bf6c-de11-be94-00142212c4b1
154 lines
3.5 KiB
XML
154 lines
3.5 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<!-- EN-Revision: c7e8def8ac39029b7e10726e166726644d03b4ab Maintainer: seros Status: ready -->
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<!-- Reviewed: no -->
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<refentry xml:id="function.uasort" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>uasort</refname>
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<refpurpose>Ordena un array con una función de comparación definida por el usuario y mantiene la asociación de índices</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>bool</type><methodname>uasort</methodname>
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<methodparam><type>array</type><parameter role="reference">array</parameter></methodparam>
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<methodparam><type>callable</type><parameter>value_compare_func</parameter></methodparam>
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</methodsynopsis>
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<para>
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Esta función ordena un array tal que los índices de array mantienen sus
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correlaciones con los elementos del array con los que están asociados, usando una
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función de comparación definida por el usuario.
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</para>
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<para>
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Se usa pricipalmente cuando se ordenan arrays asociativos donde el orden del elemento
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mismo es significante.
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</para>
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<note>
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<para>
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Si dos miembros se comparan como iguales, su orden relativo en el array ordenado será indefinido.
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</para>
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</note>
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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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El array de entrada.
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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>value_compare_func</parameter></term>
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<listitem>
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<para>
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Véase <function>usort</function> y <function>uksort</function> para
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ejemplos de funciones de comparación definidas por el usuario.
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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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&return.success;
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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 básico de <function>uasort</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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// Función de comparación
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function cmp($a, $b) {
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if ($a == $b) {
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return 0;
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}
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return ($a < $b) ? -1 : 1;
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}
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// Array a ser ordenado
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$array = array('a' => 4, 'b' => 8, 'c' => -1, 'd' => -9, 'e' => 2, 'f' => 5, 'g' => 3, 'h' => -4);
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print_r($array);
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// Ordenar e imprimir el array resultante
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uasort($array, 'cmp');
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print_r($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] => 4
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[b] => 8
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[c] => -1
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[d] => -9
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[e] => 2
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[f] => 5
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[g] => 3
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[h] => -4
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)
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Array
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(
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[d] => -9
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[h] => -4
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[c] => -1
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[e] => 2
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[g] => 3
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[a] => 4
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[f] => 5
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[b] => 8
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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>usort</function></member>
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<member>&seealso.array.sorting;</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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