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149 lines
3.9 KiB
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149 lines
3.9 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!-- EN-Revision: 5414f72979796d241b9c0b5dc1a9943e707699f2 Maintainer: lhsazevedo Status: ready --><!-- CREDITS: lucasr,marcosvpj,lhsazevedo,ABDALAZARD -->
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<refentry xml:id="function.array-keys" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>array_keys</refname>
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<refpurpose>Retorna todas as chaves ou uma parte das chaves de um 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 role="procedural">
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<type>array</type><methodname>array_keys</methodname>
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<methodparam><type>array</type><parameter>array</parameter></methodparam>
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</methodsynopsis>
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<methodsynopsis role="procedural">
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<type>array</type><methodname>array_keys</methodname>
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<methodparam><type>array</type><parameter>array</parameter></methodparam>
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<methodparam><type>mixed</type><parameter>filter_value</parameter></methodparam>
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<methodparam choice="opt"><type>bool</type><parameter>strict</parameter><initializer>&false;</initializer></methodparam>
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</methodsynopsis>
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<para>
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<function>array_keys</function> retorna as chaves, numéricas e
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string, do array <parameter>array</parameter>.
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</para>
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<para>
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Se um parâmetro <parameter>filter_value</parameter> for especificado,
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então apenas as chaves para esse valor serão retornadas. Do contrário, todas
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as chaves de <parameter>array</parameter> serão retornadas.
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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>array</parameter></term>
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<listitem>
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<para>
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Um array contendo chaves a serem retornadas.
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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>filter_value</parameter></term>
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<listitem>
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<para>
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Se especificado, somente chaves contendo este valor são retornadas.
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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>strict</parameter></term>
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<listitem>
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<para>
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Determina se a comparação é rígida (===) deve ser utilizada durante a busca.
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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 um array de todas as chaves em <parameter>array</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>Exemplo de <function>array_keys</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$array = array(0 => 100, "cor" => "vermelho");
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print_r(array_keys($array));
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$array = array("azul", "vermelho", "verde", "azul", "azul");
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print_r(array_keys($array, "azul"));
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$array = array("cor" => array("azul", "vermelho", "verde"),
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"tamanho" => array("pequeno", "medio", "grande"));
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print_r(array_keys($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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[0] => 0
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[1] => cor
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)
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Array
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(
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[0] => 0
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[1] => 3
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[2] => 4
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)
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Array
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(
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[0] => cor
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[1] => tamanho
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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_combine</function></member>
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<member><function>array_key_exists</function></member>
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<member><function>array_search</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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