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https://github.com/sigmasternchen/php-doc-en
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8cdc6621f9
- array functions - datetime functions - mbstring functions - strings functions - var functions - xml functions - json functions
248 lines
8 KiB
XML
248 lines
8 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://docbook.org/ns/docbook" xml:id="function.setlocale">
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<refnamediv>
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<refname>setlocale</refname>
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<refpurpose>Set locale information</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 class="union"><type>string</type><type>false</type></type><methodname>setlocale</methodname>
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<methodparam><type>int</type><parameter>category</parameter></methodparam>
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<methodparam><type>string</type><parameter>locales</parameter></methodparam>
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<methodparam rep="repeat"><type>string</type><parameter>rest</parameter></methodparam>
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</methodsynopsis>
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<simpara>Alternative signature (not supported with named arguments):</simpara>
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<methodsynopsis>
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<type class="union"><type>string</type><type>false</type></type><methodname>setlocale</methodname>
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<methodparam><type>int</type><parameter>category</parameter></methodparam>
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<methodparam><type>array</type><parameter>locale_array</parameter></methodparam>
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</methodsynopsis>
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<para>
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Sets locale information.
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</para>
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<warning>
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<para>
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The locale information is maintained per process, not per thread. If you
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are running PHP on a multithreaded server API
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, you may experience sudden changes in locale settings while a
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script is running, though the script itself never called
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<function>setlocale</function>. This happens due to other scripts
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running in different threads of the same process at the same time,
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changing the process-wide locale using <function>setlocale</function>.
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On Windows, locale information is maintained per thread as of PHP 7.0.5.
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</para>
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</warning>
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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>category</parameter></term>
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<listitem>
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<para>
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<parameter>category</parameter> is a named constant specifying the
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category of the functions affected by the locale setting:
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<itemizedlist>
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<listitem>
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<simpara>
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<constant>LC_ALL</constant> for all of the below
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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<constant>LC_COLLATE</constant> for string comparison, see
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<function>strcoll</function>
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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<constant>LC_CTYPE</constant> for character classification and conversion, for
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example <function>strtoupper</function>
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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<constant>LC_MONETARY</constant> for <function>localeconv</function>
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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<constant>LC_NUMERIC</constant> for decimal separator (See also
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<function>localeconv</function>)
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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<constant>LC_TIME</constant> for date and time formatting with
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<function>strftime</function>
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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<constant>LC_MESSAGES</constant> for system responses (available if PHP was compiled with
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<literal>libintl</literal>)
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</simpara>
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</listitem>
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</itemizedlist>
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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>locales</parameter></term>
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<listitem>
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<para>
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If <parameter>locales</parameter> is the empty string
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<literal>""</literal>, the locale names will be set from the
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values of environment variables with the same names as the above
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categories, or from "LANG".
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</para>
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<para>
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If <parameter>locales</parameter> is <literal>"0"</literal>,
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the locale setting is not affected, only the current setting is returned.
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</para>
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<para>
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If <parameter>locales</parameter> is followed by additional
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parameters then each parameter is tried to be set as
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new locale until success. This is useful if a locale is known under
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different names on different systems or for providing a fallback
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for a possibly not available locale.
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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>rest</parameter></term>
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<listitem>
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<para>
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Optional string parameters to try as locale settings until
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success.
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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>locale_array</parameter></term>
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<listitem>
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<para>
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Each array element is tried to be set as
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new locale until success. This is useful if a locale is known under
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different names on different systems or for providing a fallback
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for a possibly not available locale.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<note>
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<para>
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On Windows, setlocale(LC_ALL, '') sets the locale names from the
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system's regional/language settings (accessible via Control Panel).
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</para>
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</note>
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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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Returns the new current locale, or &false; if the locale functionality is
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not implemented on your platform, the specified locale does not exist or
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the category name is invalid.
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</para>
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<para>
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An invalid category name also causes a warning message. Category/locale
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names can be found in <link xlink:href="&url.rfc;1766">RFC 1766</link>
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and <link xlink:href="&url.iso-639;">ISO 639</link>.
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Different systems have different naming schemes for locales.
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</para>
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<note>
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<para>
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The return value of <function>setlocale</function> depends
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on the system that PHP is running. It returns exactly
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what the system <literal>setlocale</literal> function returns.
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</para>
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</note>
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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><function>setlocale</function> Examples</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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/* Set locale to Dutch */
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setlocale(LC_ALL, 'nl_NL');
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/* Output: vrijdag 22 december 1978 */
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echo strftime("%A %e %B %Y", mktime(0, 0, 0, 12, 22, 1978));
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/* try different possible locale names for german */
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$loc_de = setlocale(LC_ALL, 'de_DE@euro', 'de_DE', 'de', 'ge');
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echo "Preferred locale for german on this system is '$loc_de'";
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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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<para>
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<example>
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<title><function>setlocale</function> Examples for Windows</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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/* Set locale to Dutch */
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setlocale(LC_ALL, 'nld_nld');
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/* Output: vrijdag 22 december 1978 */
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echo strftime("%A %d %B %Y", mktime(0, 0, 0, 12, 22, 1978));
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/* try different possible locale names for german */
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$loc_de = setlocale(LC_ALL, 'de_DE@euro', 'de_DE', 'deu_deu');
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echo "Preferred locale for german on this system is '$loc_de'";
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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="notes">
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&reftitle.notes;
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<tip>
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<para>
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Windows users will find useful information about
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<parameter>locales</parameter> strings at Microsoft's
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<acronym>MSDN</acronym> website. Supported language strings can be found
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in the
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<link xlink:href="&url.setlocale.lang.win32;">language strings documentation</link>
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and supported country/region strings in the
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<link xlink:href="&url.setlocale.country.win32;">country/region strings documentation</link>.
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</para>
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</tip>
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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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