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128 lines
4.1 KiB
XML
128 lines
4.1 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<!-- EN-Revision: 576c7c43febb2eec5718d8320f92606423413983 Maintainer: yuanyuqiang Status: ready -->
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<!-- CREDITS: mowangjuanzi, Luffy -->
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<reference xml:id="class.datetime" role="class" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude">
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<title>DateTime 类</title>
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<titleabbrev>DateTime</titleabbrev>
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<partintro>
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<!-- {{{ DateTime intro -->
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<section xml:id="datetime.intro">
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&reftitle.intro;
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<para>
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日期和时间表示。
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</para>
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<para>
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此类与 <classname>DateTimeImmutable</classname> 行为相同。区别就是调用有修改行为的方法（比如
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<function>DateTime::modify</function>）时，会修改对象本身。
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</para>
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<warning>
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<para>
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在 <classname>DateTime</classname> 类的对象上调用方法会改变对象中封装的信息，如果想要避免这种情况，就得使用
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<literal>clone</literal> 操作符创建新的对象。推荐使用 <classname>DateTimeImmutable</classname>
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代替 <classname>DateTime</classname> 来获得这个默认行为。
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</para>
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</warning>
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</section>
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<!-- }}} -->
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<section xml:id="datetime.synopsis">
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&reftitle.classsynopsis;
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<!-- {{{ Synopsis -->
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<classsynopsis class="class">
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<ooclass>
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<classname>DateTime</classname>
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</ooclass>
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<oointerface>
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<modifier>implements</modifier>
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<interfacename>DateTimeInterface</interfacename>
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</oointerface>
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<classsynopsisinfo role="comment">&InheritedConstants;</classsynopsisinfo>
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<xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.datetimeinterface')/db:partintro/db:section/db:classsynopsis/db:fieldsynopsis[preceding-sibling::db:classsynopsisinfo[1][@role='comment' and text()='&Constants;']]))">
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<xi:fallback/>
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</xi:include>
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<classsynopsisinfo role="comment">&Methods;</classsynopsisinfo>
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<xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.datetime')/db:refentry/db:refsect1[@role='description']/descendant::db:constructorsynopsis[@role='DateTime'])">
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<xi:fallback/>
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</xi:include>
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<xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.datetime')/db:refentry/db:refsect1[@role='description']/descendant::db:methodsynopsis[@role='DateTime'])">
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<xi:fallback/>
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</xi:include>
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<xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.datetimeinterface')/db:refentry/db:refsect1[@role='description']/descendant::db:methodsynopsis[@role='DateTime'])">
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<xi:fallback/>
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</xi:include>
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</classsynopsis>
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<!-- }}} -->
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</section>
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<section role="changelog" xml:id="datetime.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>8.4.0</entry>
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<entry>
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类常量现已类型化。
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</entry>
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</row>
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<row>
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<entry>7.2.0</entry>
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<entry>
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<classname>DateTime</classname> 的类常量现在定义在 <classname>DateTimeInterface</classname> 上。
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</entry>
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</row>
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<row>
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<entry>7.1.0</entry>
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<entry>
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现在 <classname>DateTime</classname> 构造器在构造值中包含了当前微秒。在此之前，微秒会一直初始化为 <literal>0</literal>。
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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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</section><!-- }}} -->
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</partintro>
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&reference.datetime.entities.datetime;
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</reference>
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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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