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git-svn-id: https://svn.php.net/repository/phpdoc/es/trunk@313550 c90b9560-bf6c-de11-be94-00142212c4b1
105 lines
2.7 KiB
XML
105 lines
2.7 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<!-- EN-Revision: f2049e4661c2459f631534e1bb1d5acce65d416f Maintainer: chuso Status: ready -->
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<refentry xml:id="function.getenv" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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<refnamediv>
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<refname>getenv</refname>
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<refpurpose>Obtiene el valor de una variable de entorno</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>string</type><methodname>getenv</methodname>
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<methodparam><type>string</type><parameter>varname</parameter></methodparam>
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</methodsynopsis>
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<para>
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Obtiene el valor de una variable de entorno.
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</para>
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<para>
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Se puede ver una lista de todas las variables de entorno usando
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<function>phpinfo</function>. Muchas de estas variables están listadas bajo la especificación
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<link xlink:href="&url.rfc;3875">RFC 3875</link>, específicamente
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la sección 4.1, "Request Meta-Variables".
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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>varname</parameter></term>
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<listitem>
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<para>
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El nombre de variable.
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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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Devuelve el valor de la variable de entorno
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<parameter>varname</parameter>, o &false; si la variable
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entorno <parameter>varname</parameter> no existe.
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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>getenv</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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// Ejemplo de uso de getenv()
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$ip = getenv('REMOTE_ADDR');
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// O simplemente use una Superglobal ($_SERVER o $_ENV)
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$ip = $_SERVER['REMOTE_ADDR'];
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?>
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]]>
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</programlisting>
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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>putenv</function></member>
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<member><function>apache_getenv</function></member>
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<member><link linkend="language.variables.superglobals">Superglobales</link></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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