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<?xml version="1.0" encoding="UTF-8"?>
<!-- $Revision: 323624 $ -->
<appendix xml:id="datetime.constants" xmlns="http://docbook.org/ns/docbook">
&reftitle.constants;
<para>
The <link linkend="datetime.constants.types"><literal>DATE_</literal>
constants</link> are defined since PHP 5.1.1 and they offer standard
date representations, which can be used along with the date format functions
(like <function>date</function>).
</para>
<para>
Following constants exists since PHP 5.1.2 and specify a format returned by
functions <function>date_sunrise</function> and
<function>date_sunset</function>.
</para>
<variablelist>
<varlistentry xml:id="constant.sunfuncs-ret-timestamp">
<term>
<constant>SUNFUNCS_RET_TIMESTAMP</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
Timestamp
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.sunfuncs-ret-string">
<term>
<constant>SUNFUNCS_RET_STRING</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
Hours:minutes (example: 08:02)
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.sunfuncs-ret-double">
<term>
<constant>SUNFUNCS_RET_DOUBLE</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
Hours as floating point number (example 8.75)
</simpara>
</listitem>
</varlistentry>
</variablelist>
</appendix>
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