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git-svn-id: https://svn.php.net/repository/phpdoc/es/trunk@337713 c90b9560-bf6c-de11-be94-00142212c4b1
131 lines
3.0 KiB
XML
131 lines
3.0 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<!-- EN-Revision: 964d208b1fce2e332fc0777f8dbe1b026e133179 Maintainer: seros Status: ready -->
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<!-- Reviewed: no -->
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<refentry xml:id="function.iterator-count" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>iterator_count</refname>
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<refpurpose>Contar los elementos de un iterador</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>int</type><methodname>iterator_count</methodname>
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<methodparam><type>Traversable</type><parameter>iterator</parameter></methodparam>
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</methodsynopsis>
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<para>
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Contar los elementos de un iterador.
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<function>iterator_count</function> no garantiza conservar la posición
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actual de <parameter>iterator</parameter>.
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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>iterator</parameter></term>
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<listitem>
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<para>
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El iterador a contar.
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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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El número de elementos de <parameter>iterator</parameter>.
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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>iterator_count</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$iterator = new ArrayIterator(array('recipe'=>'panqueques', 'huevo', 'leche', 'harina'));
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var_dump(iterator_count($iterator));
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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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int(4)
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]]>
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</screen>
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</example>
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<example>
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<title><function>iterator_count</function> modifica la posición</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$iterator = new ArrayIterator(['uno', 'dos', 'tres']);
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var_dump($iterator->current());
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var_dump(iterator_count($iterator));
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var_dump($iterator->current());
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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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string(3) "uno"
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int(3)
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NULL
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]]>
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</screen>
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</example>
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<example>
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<title><function>iterator_count</function> en bucles &foreach;</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$iterator = new ArrayIterator(['uno', 'dos', 'tres']);
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foreach ($iterator as $clave => $valor) {
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echo "$clave: $valor (", iterator_count($iterator), ")\n";
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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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0: uno (3)
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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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</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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