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date-default-timezone-set.xml
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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: 0a10abc50524fcbb21807b5e6ebffb3b86d45907 Maintainer: HonestQiao Status: ready -->
<!-- CREDITS: mowangjuanzi -->
<refentry xml:id="function.date-default-timezone-set" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>date_default_timezone_set</refname>
<refpurpose>
设置脚本中所有日期/时间函数使用的默认时区
</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>date_default_timezone_set</methodname>
<methodparam><type>string</type><parameter>timezoneId</parameter></methodparam>
</methodsynopsis>
<para>
<function>date_default_timezone_set</function> 设置所有日期/时间函数使用的默认时区
</para>
<para>
除了在脚本中使用此函数设置默认时区,还可以使用 INI 设置 <link
linkend="ini.date.timezone">date.timezone</link>
设置默认时区。
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>timezoneId</parameter></term>
<listitem>
<para>
时区标识符,像 <literal>UTC</literal>、<literal>Africa/Lagos</literal>、<literal>Asia/Hong_Kong</literal>
或 <literal>Europe/Lisbon</literal>。有效的标识符列表见<xref linkend="timezones"/>。
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
如果 <parameter>timezoneId</parameter> 无效,此函数返回 &false;,否则返回 &true;。
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>获取默认时区</title>
<programlisting role="php">
<![CDATA[
<?php
date_default_timezone_set('America/Los_Angeles');
$script_tz = date_default_timezone_get();
if (strcmp($script_tz, ini_get('date.timezone'))){
echo 'Script timezone differs from ini-set timezone.';
} else {
echo 'Script timezone and ini-set timezone match.';
}
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>date_default_timezone_get</function></member>
<member><xref linkend="timezones"/></member>
</simplelist>
</para>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->