mirror of
https://github.com/sigmasternchen/php-doc-en
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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@297028 c90b9560-bf6c-de11-be94-00142212c4b1
140 lines
3.7 KiB
XML
140 lines
3.7 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xml:id="function.gmdate" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>gmdate</refname>
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<refpurpose>Format a GMT/UTC date/time</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>gmdate</methodname>
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<methodparam><type>string</type><parameter>format</parameter></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>timestamp</parameter></methodparam>
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</methodsynopsis>
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<para>
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Identical to the <function>date</function> function except that
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the time returned is Greenwich Mean Time (GMT).
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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>format</parameter></term>
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<listitem>
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<para>
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The format of the outputted date <type>string</type>. See the formatting
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options for the <function>date</function> function.
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</para>
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</listitem>
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</varlistentry>
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&date.timestamp.description;
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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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Returns a formatted date string. If a non-numeric value is used for
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<parameter>timestamp</parameter>, &false; is returned and an
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<constant>E_WARNING</constant> level error is emitted.
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</para>
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</refsect1>
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<refsect1 role="changelog">
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&reftitle.changelog;
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<para>
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<informaltable>
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<tgroup cols="2">
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<thead>
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<row>
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<entry>&Version;</entry>
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<entry>&Description;</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>5.1.0</entry>
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<entry>
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The valid range of a timestamp is typically from Fri, 13 Dec
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1901 20:45:54 GMT to Tue, 19 Jan 2038 03:14:07 GMT. (These are
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the dates that correspond to the minimum and maximum values for
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a 32-bit signed integer). However, before PHP 5.1.0 this range was limited
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from 01-01-1970 to 19-01-2038 on some systems (e.g. Windows).
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</entry>
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</row>
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<row>
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<entry>5.1.1</entry>
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<entry>
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There are useful <link linkend="datetime.constants">constants</link>
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of standard date/time formats that can be used to specify the
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<parameter>format</parameter> parameter.
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</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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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><function>gmdate</function> example</title>
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<para>
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When run in Finland (GMT +0200), the first line below prints "Jan 01
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1998 00:00:00", while the second prints "Dec 31 1997 22:00:00".
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</para>
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<programlisting role="php">
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<![CDATA[
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<?php
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echo date("M d Y H:i:s", mktime(0, 0, 0, 1, 1, 1998));
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echo gmdate("M d Y H:i:s", mktime(0, 0, 0, 1, 1, 1998));
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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>date</function></member>
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<member><function>mktime</function></member>
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<member><function>gmmktime</function></member>
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<member><function>strftime</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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