1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.9 $ -->
<refentry xml:id="function.gregoriantojd" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>GregorianToJD</refname>
<refpurpose>Converts a Gregorian date to Julian Day Count</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>int</type><methodname>gregoriantojd</methodname>
<methodparam><type>int</type><parameter>month</parameter></methodparam>
<methodparam><type>int</type><parameter>day</parameter></methodparam>
<methodparam><type>int</type><parameter>year</parameter></methodparam>
</methodsynopsis>
<para>
Valid Range for Gregorian Calendar 4714 B.C. to 9999 A.D.</para>
<para>
Although this function can handle dates all the way back to 4714
B.C., such use may not be meaningful. The Gregorian calendar was
not instituted until October 15, 1582 (or October 5, 1582 in the
Julian calendar). Some countries did not accept it until much
later. For example, Britain converted in 1752, The USSR in 1918
and Greece in 1923. Most European countries used the Julian
calendar prior to the Gregorian.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>month</parameter></term>
<listitem>
<para>
The month as a number from 1 (for January) to 12 (for December)
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>day</parameter></term>
<listitem>
<para>
The day as a number from 1 to 31
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>year</parameter></term>
<listitem>
<para>
The year as a number between -4714 and 9999
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
The julian day for the given gregorian date as an integer.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Calendar functions</title>
<programlisting role="php">
<![CDATA[
<?php
$jd = GregorianToJD(10, 11, 1970);
echo "$jd\n";
$gregorian = JDToGregorian($jd);
echo "$gregorian\n";
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>jdtogregorian</function></member>
<member><function>cal_to_jd</function></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:"../../../../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
-->
|
