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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<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">
<title>The DateTime class</title>
<titleabbrev>DateTime</titleabbrev>
<partintro>
<!-- {{{ DateTime intro -->
<section xml:id="datetime.intro">
&reftitle.intro;
<para>
Representation of date and time.
</para>
<para>
This class behaves the same as <classname>DateTimeImmutable</classname>,
except objects are modified itself when modification methods such as
<function>DateTime::modify</function> are called.
</para>
<warning>
<para>
Calling methods on objects of the class <classname>DateTime</classname>
will change the information encapsulated in these objects, if you want to
prevent that you will have to use <literal>clone</literal> operator to
create a new object. Use <classname>DateTimeImmutable</classname>
instead of <classname>DateTime</classname> to obtain this recommended
behaviour by default.
</para>
</warning>
</section>
<!-- }}} -->
<section xml:id="datetime.synopsis">
&reftitle.classsynopsis;
<!-- {{{ Synopsis -->
<classsynopsis class="class">
<ooclass>
<classname>DateTime</classname>
</ooclass>
<oointerface>
<modifier>implements</modifier>
<interfacename>DateTimeInterface</interfacename>
</oointerface>
<classsynopsisinfo role="comment">&InheritedConstants;</classsynopsisinfo>
<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;']]))">
<xi:fallback/>
</xi:include>
<classsynopsisinfo role="comment">&Methods;</classsynopsisinfo>
<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'])">
<xi:fallback/>
</xi:include>
<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'])">
<xi:fallback/>
</xi:include>
<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'])">
<xi:fallback/>
</xi:include>
</classsynopsis>
<!-- }}} -->
</section>
<section role="changelog" xml:id="datetime.changelog"><!-- {{{ -->
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>8.4.0</entry>
<entry>
The class constants are now typed.
</entry>
</row>
<row>
<entry>7.2.0</entry>
<entry>
The class constants of <classname>DateTime</classname> are now defined
on <classname>DateTimeInterface</classname>.
</entry>
</row>
<row>
<entry>7.1.0</entry>
<entry>
The <classname>DateTime</classname> constructor now includes the
current microseconds in the constructed value. Before this, it would
always initialise the microseconds to <literal>0</literal>.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</section><!-- }}} -->
</partintro>
&reference.datetime.entities.datetime;
</reference>
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-->
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