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archived-doc-es/reference/spl/arrayobject/offsetexists.xml
2014-09-05 20:55:10 +00:00

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2.2 KiB
XML

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: 14af302c9c0e561fa6f9cdd956268758ba9a89c5 Maintainer: andresdzphp Status: ready -->
<!-- Reviewed: no Maintainer: andresdzphp -->
<refentry xml:id="arrayobject.offsetexists" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>ArrayObject::offsetExists</refname>
<refpurpose>Devuelve si el índice solicitado existe</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<modifier>public</modifier> <type>bool</type><methodname>ArrayObject::offsetExists</methodname>
<methodparam><type>mixed</type><parameter>index</parameter></methodparam>
</methodsynopsis>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>index</parameter></term>
<listitem>
<para>
El índice a ser comprobado.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&true; si el índice solicitado existe, en caso contrario &false;
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Ejemplo de <methodname>ArrayObject::offsetExists</methodname></title>
<programlisting role="php">
<![CDATA[
<?php
$arrayobj = new ArrayObject(array('cero', 'uno', 'ejemplo'=>'e.j.'));
var_dump($arrayobj->offsetExists(1));
var_dump($arrayobj->offsetExists('ejemplo'));
var_dump($arrayobj->offsetExists('noencontrado'));
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
bool(true)
bool(true)
bool(false)
]]>
</screen>
</example>
</para>
</refsect1>
</refentry>
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-->