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archived-doc-es/reference/spl/functions/iterator-apply.xml
Andrés García 92e5f87ec2 updated to the most recent version.
git-svn-id: https://svn.php.net/repository/phpdoc/es/trunk@324169 c90b9560-bf6c-de11-be94-00142212c4b1
2012-03-12 22:48:22 +00:00

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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: 5faa7a6747bca628b3bdcc9f93aec5603b65581f Maintainer: andresdzphp Status: ready -->
<!-- Reviewed: no Maintainer: andresdzphp -->
<refentry xml:id="function.iterator-apply" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>iterator_apply</refname>
<refpurpose>Llama una función para cada elemento en un iterador</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>int</type><methodname>iterator_apply</methodname>
<methodparam><type>Traversable</type><parameter>iterator</parameter></methodparam>
<methodparam><type>callable</type><parameter>function</parameter></methodparam>
<methodparam choice="opt"><type>array</type><parameter>args</parameter></methodparam>
</methodsynopsis>
<para>
Llamar una función para cada elemento en un iterador.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>iterator</parameter></term>
<listitem>
<para>
La clase a ser iterada.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>function</parameter></term>
<listitem>
<para>
La función de llamada de recorno a llamar para cada elemento.
<note>
<simpara>
Esta función debe retornar &true; para con el fin de seguir con
la iterando el <parameter>iterator</parameter>.
</simpara>
</note>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>args</parameter></term>
<listitem>
<para>
Argumentos que van a ser pasados a la función de llamada de retorno.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Devuelve el número de iteraciones.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Ejemplo de <function>iterator_apply</function></title>
<programlisting role="php">
<![CDATA[
<?php
function print_caps(Iterator $iterator) {
echo strtoupper($iterator->current()) . "\n";
return TRUE;
}
$it = new ArrayIterator(array("Manzanas", "Bananas", "Cerezas"));
iterator_apply($it, "print_caps", array($it));
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
MANZANAS
BANANAS
CEREZAS
]]>
</screen>
</example>
</para>
</refsect1>
<!--
<refsect1 role="errors">
&reftitle.errors;
<para>
When does this function issue E_* level errors, and/or throw exceptions.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>iterator_apply</function> example</title>
<para>
Any text that describes the purpose of the example, or what
goes on in the example should be here.
</para>
<programlisting role="php">
<![CDATA[
<?php
/* ... */
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
...
]]>
</screen>
</example>
</para>
</refsect1>
-->
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>array_walk</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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sgml-minimize-attributes:nil
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sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
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sgml-local-ecat-files:nil
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