Some corrections.

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@23028 c90b9560-bf6c-de11-be94-00142212c4b1
This commit is contained in:
Egon Schmid 2000-04-20 08:29:44 +00:00
parent f96491304f
commit 5388800a35

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@ -5,233 +5,245 @@
<partintro>
<para>
The calendar functions are only available if you have compiled the
calendar extension in dl/calendar. Read dl/README for instructions on
using it.
calendar extension in dl/calendar. Read dl/README for instructions
on using it.
</para>
<para>
The calendar extension presents a series of functions to
simplify converting between different calendar formats. The
intermediary or standard it is based on is the Julian Day Count.
The Julian Day Count is a count of days starting way earlier than
any date most people would need to track (somewhere around
4000bc). To convert between calendar systems, you must first
convert to Julian Day Count, then to the calendar system of your
choice. Julian Day Count is very different from the Julian
Calendar! For more information on calendar systems visit <ulink url="http://genealogy.org/~scottlee/cal-overview.html">http://genealogy.org/~scottlee/cal-overview.html</ulink>.
Excerpts from this page are included in these instructions, and
are in quotes.</para>
The calendar extension presents a series of functions to simplify
converting between different calendar formats. The intermediary
or standard it is based on is the Julian Day Count. The Julian
Day Count is a count of days starting way earlier than any date
most people would need to track (somewhere around 4000bc). To
convert between calendar systems, you must first convert to Julian
Day Count, then to the calendar system of your choice. Julian Day
Count is very different from the Julian Calendar! For more
information on calendar systems visit <ulink
url="&url.calendar;">&url.calendar;</ulink>. Excerpts from this
page are included in these instructions, and are in quotes.
</para>
</partintro>
<refentry id="function.jdtogregorian">
<refnamediv>
<refname>JDToGregorian</refname>
<refpurpose>Converts Julian Day Count to Gregorian date</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>string <function>jdtogregorian</function></funcdef>
<paramdef>int <parameter>julianday</parameter></paramdef>
</funcsynopsis>
<para>
Converts Julian Day Count to a string containing the
Gregorian date in the format of "month/day/year"</para>
</refsect1>
</refentry>
<refentry id="function.jdtogregorian">
<refnamediv>
<refname>JDToGregorian</refname>
<refpurpose>Converts Julian Day Count to Gregorian date</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>string <function>jdtogregorian</function></funcdef>
<paramdef>int <parameter>julianday</parameter></paramdef>
</funcsynopsis>
<para>
Converts Julian Day Count to a string containing the Gregorian
date in the format of "month/day/year".
</para>
</refsect1>
</refentry>
<refentry id="function.gregoriantojd">
<refnamediv>
<refname>GregorianToJD</refname>
<refpurpose>Converts a Gregorian date to Julian Day
Count</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>int <function>gregoriantojd</function></funcdef>
<paramdef>int <parameter>month</parameter></paramdef>
<paramdef>int <parameter>day</parameter></paramdef>
<paramdef>int <parameter>year</parameter></paramdef>
</funcsynopsis>
<para>
Valid Range for Gregorian Calendar 4714 B.C. to 9999 A.D.</para>
<para>
Although this software 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.
<example>
<title>Calendar functions</title>
<programlisting role="php">
<refentry id="function.gregoriantojd">
<refnamediv>
<refname>GregorianToJD</refname>
<refpurpose>
Converts a Gregorian date to Julian Day Count
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>int <function>gregoriantojd</function></funcdef>
<paramdef>int <parameter>month</parameter></paramdef>
<paramdef>int <parameter>day</parameter></paramdef>
<paramdef>int <parameter>year</parameter></paramdef>
</funcsynopsis>
<para>
Valid Range for Gregorian Calendar 4714 B.C. to 9999 A.D.</para>
<para>
Although this software 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.
<example>
<title>Calendar functions</title>
<programlisting role="php">
&lt;?php
$jd = GregorianToJD(10,11,1970);
echo("$jd\n");
$gregorian = JDToGregorian($jd);
echo("$gregorian\n");
$jd = GregorianToJD (10,11,1970);
echo "$jd\n";
$gregorian = JDToGregorian ($jd);
echo "$gregorian\n";
?>
</programlisting>
</example></para>
</refsect1>
</refentry>
</programlisting>
</example>
</para>
</refsect1>
</refentry>
<refentry id="function.jdtojulian">
<refnamediv>
<refname>JDToJulian</refname>
<refpurpose>Converts a Julian Calendar date to Julian Day
Count</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>string <function>jdtojulian</function></funcdef>
<paramdef>int <parameter>julianday</parameter></paramdef>
</funcsynopsis>
<para>
Converts Julian Day Count to a string containing the Julian
Calendar Date in the format of "month/day/year".</para>
</refsect1>
</refentry>
<refentry id="function.jdtojulian">
<refnamediv>
<refname>JDToJulian</refname>
<refpurpose>
Converts a Julian Calendar date to Julian Day Count
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>string <function>jdtojulian</function></funcdef>
<paramdef>int <parameter>julianday</parameter></paramdef>
</funcsynopsis>
<para>
Converts Julian Day Count to a string containing the Julian
Calendar Date in the format of "month/day/year".
</para>
</refsect1>
</refentry>
<refentry id="function.juliantojd">
<refnamediv>
<refname>JulianToJD</refname>
<refpurpose>Converts a Julian Calendar date to Julian Day
Count</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>int <function>juliantojd</function></funcdef>
<paramdef>int <parameter>month</parameter></paramdef>
<paramdef>int <parameter>day</parameter></paramdef>
<paramdef>int <parameter>year</parameter></paramdef>
</funcsynopsis>
<para>
Valid Range for Julian Calendar 4713 B.C. to 9999 A.D.</para>
<para>
Although this software can handle dates all the way back to
4713 B.C., such use may not be meaningful. The calendar was
created in 46 B.C., but the details did not stabilize until
at least 8 A.D., and perhaps as late at the 4th
century. Also, the beginning of a year varied from one
culture to another - not all accepted January as the first
month.</para>
</refsect1>
</refentry>
<refentry id="function.juliantojd">
<refnamediv>
<refname>JulianToJD</refname>
<refpurpose>
Converts a Julian Calendar date to Julian Day Count
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>int <function>juliantojd</function></funcdef>
<paramdef>int <parameter>month</parameter></paramdef>
<paramdef>int <parameter>day</parameter></paramdef>
<paramdef>int <parameter>year</parameter></paramdef>
</funcsynopsis>
<para>
Valid Range for Julian Calendar 4713 B.C. to 9999 A.D.
</para>
<para>
Although this software can handle dates all the way back to 4713
B.C., such use may not be meaningful. The calendar was created in
46 B.C., but the details did not stabilize until at least 8 A.D.,
and perhaps as late at the 4th century. Also, the beginning of a
year varied from one culture to another - not all accepted
January as the first month.
</para>
</refsect1>
</refentry>
<refentry id="function.jdtojewish">
<refnamediv>
<refname>JDToJewish</refname>
<refpurpose>
Converts a Julian Day Count to the Jewish Calendar
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>string <function>jdtojewish</function></funcdef>
<paramdef>int <parameter>julianday</parameter></paramdef>
</funcsynopsis>
<para>
Converts a Julian Day Count the the Jewish Calendar.
</para>
</refsect1>
</refentry>
<refentry id="function.jdtojewish">
<refnamediv>
<refname>JDToJewish</refname>
<refpurpose>Converts a Julian Day Count to the Jewish
Calendar</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>string <function>jdtojewish</function></funcdef>
<paramdef>int <parameter>julianday</parameter></paramdef>
</funcsynopsis>
<para>
Converts a Julian Day Count the the Jewish Calendar.</para>
</refsect1>
</refentry>
<refentry id="function.jewishtojd">
<refnamediv>
<refname>JewishToJD</refname>
<refpurpose>Converts a date in the Jewish Calendar to Julian
Day Count</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>int <function>jewishtojd</function></funcdef>
<paramdef>int <parameter>month</parameter></paramdef>
<paramdef>int <parameter>day</parameter></paramdef>
<paramdef>int <parameter>year</parameter></paramdef>
</funcsynopsis>
<para>
Valid Range Although this software can handle dates all the
way back to the year 1 (3761 B.C.), such use may not be
meaningful.</para>
<para>
The Jewish calendar has been in use for several thousand
years, but in the early days there was no formula to
determine the start of a month. A new month was started when
the new moon was first observed.</para>
</refsect1>
</refentry>
<refentry id="function.jdtofrench">
<refnamediv>
<refname>JDToFrench</refname>
<refpurpose>Converts a Julian Day Count to the French
Republican Calendar</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>string <function>jdtofrench</function></funcdef>
<paramdef>int <parameter>month</parameter></paramdef>
<paramdef>int <parameter>day</parameter></paramdef>
<paramdef>int <parameter>year</parameter></paramdef>
</funcsynopsis>
<para>
Converts a Julian Day Count to the French Republican
Calendar.</para>
</refsect1>
</refentry>
<refentry id="function.frenchtojd">
<refnamediv>
<refname>FrenchToJD</refname>
<refpurpose>Converts a date from the French Republican
Calendar to a Julian Day Count</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>int <function>frenchtojd</function></funcdef>
<paramdef>int <parameter>month</parameter></paramdef>
<paramdef>int <parameter>day</parameter></paramdef>
<paramdef>int <parameter>year</parameter></paramdef>
</funcsynopsis>
<para>
Converts a date from the French Republican Calendar to a
Julian Day Count</para>
<para>
These routines only convert dates in years 1 through 14
(Gregorian dates 22 September 1792 through 22 September
1806). This more than covers the period when the calendar was
in use.</para>
</refsect1>
</refentry>
<refentry id="function.jdmonthname">
<refnamediv>
<refname>JDMonthName</refname>
<refpurpose>Returns a month name</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>string <function>jdmonthname</function></funcdef>
<paramdef>int <parameter>julianday</parameter></paramdef>
<paramdef>int <parameter>mode</parameter></paramdef>
</funcsynopsis>
<para>
Returns a string containing a month name.
<parameter>mode</parameter> tells this function which
calendar to convert the Julian Day Count to, and what type of
month names are to be returned.
<refentry id="function.jewishtojd">
<refnamediv>
<refname>JewishToJD</refname>
<refpurpose>
Converts a date in the Jewish Calendar to Julian Day Count
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>int <function>jewishtojd</function></funcdef>
<paramdef>int <parameter>month</parameter></paramdef>
<paramdef>int <parameter>day</parameter></paramdef>
<paramdef>int <parameter>year</parameter></paramdef>
</funcsynopsis>
<para>
Valid Range Although this software can handle dates all the way
back to the year 1 (3761 B.C.), such use may not be meaningful.
</para>
<para>
The Jewish calendar has been in use for several thousand years,
but in the early days there was no formula to determine the start
of a month. A new month was started when the new moon was first
observed.
</para>
</refsect1>
</refentry>
<refentry id="function.jdtofrench">
<refnamediv>
<refname>JDToFrench</refname>
<refpurpose>
Converts a Julian Day Count to the French Republican Calendar
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>string <function>jdtofrench</function></funcdef>
<paramdef>int <parameter>month</parameter></paramdef>
<paramdef>int <parameter>day</parameter></paramdef>
<paramdef>int <parameter>year</parameter></paramdef>
</funcsynopsis>
<para>
Converts a Julian Day Count to the French Republican Calendar.
</para>
</refsect1>
</refentry>
<refentry id="function.frenchtojd">
<refnamediv>
<refname>FrenchToJD</refname>
<refpurpose>
Converts a date from the French Republican Calendar to a Julian
Day Count
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>int <function>frenchtojd</function></funcdef>
<paramdef>int <parameter>month</parameter></paramdef>
<paramdef>int <parameter>day</parameter></paramdef>
<paramdef>int <parameter>year</parameter></paramdef>
</funcsynopsis>
<para>
Converts a date from the French Republican Calendar to a Julian
Day Count.
</para>
<para>
These routines only convert dates in years 1 through 14
(Gregorian dates 22 September 1792 through 22 September
1806). This more than covers the period when the calendar was in
use.
</para>
</refsect1>
</refentry>
<refentry id="function.jdmonthname">
<refnamediv>
<refname>JDMonthName</refname>
<refpurpose>Returns a month name</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>string <function>jdmonthname</function></funcdef>
<paramdef>int <parameter>julianday</parameter></paramdef>
<paramdef>int <parameter>mode</parameter></paramdef>
</funcsynopsis>
<para>
Returns a string containing a month name.
<parameter>mode</parameter> tells this function which calendar to
convert the Julian Day Count to, and what type of month names are
to be returned.
<table>
<title>Calendar modes</title>
<tgroup cols="2">
@ -244,7 +256,7 @@ echo("$gregorian\n");
<tbody>
<row>
<entry>0</entry>
<entry>Gregorian - apreviated</entry>
<entry>Gregorian - abbreviated</entry>
</row>
<row>
<entry>1</entry>
@ -252,7 +264,7 @@ echo("$gregorian\n");
</row>
<row>
<entry>2</entry>
<entry>Julian - apreviated</entry>
<entry>Julian - abbreviated</entry>
</row>
<row>
<entry>3</entry>
@ -268,27 +280,26 @@ echo("$gregorian\n");
</row>
</tbody>
</tgroup>
</table></para>
</refsect1>
</refentry>
<refentry id="function.jddayofweek">
<refnamediv>
<refname>JDDayOfWeek</refname>
<refpurpose>Returns the day of the week</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>mixed <function>jddayofweek</function></funcdef>
<paramdef>int <parameter>julianday</parameter></paramdef>
<paramdef>int <parameter>mode</parameter></paramdef>
</funcsynopsis>
<para>
Returns the day of the week. Can return a string or an int
depending on the mode.
</table>
</para>
</refsect1>
</refentry>
<refentry id="function.jddayofweek">
<refnamediv>
<refname>JDDayOfWeek</refname>
<refpurpose>Returns the day of the week</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>mixed <function>jddayofweek</function></funcdef>
<paramdef>int <parameter>julianday</parameter></paramdef>
<paramdef>int <parameter>mode</parameter></paramdef>
</funcsynopsis>
<para>
Returns the day of the week. Can return a string or an int
depending on the mode.
<table>
<title>Calendar week modes</title>
<tgroup cols="2">
@ -300,28 +311,38 @@ echo("$gregorian\n");
</thead>
<tbody>
<row>
<entry>0</entry> <entry>returns the day number as an int
(0=sunday, 1=monday, etc)</entry>
<entry>0</entry>
<entry>
Returns the day number as an int (0=sunday, 1=monday, etc)
</entry>
</row>
<row>
<entry>1</entry> <entry>returns string containing the day of
week (english-gregorian)</entry>
<entry>1</entry>
<entry>
Returns string containing the day of week
(english-gregorian)
</entry>
</row>
<row>
<entry>2</entry> <entry>returns a string containing the
abreviated day of week (english-gregorian)</entry>
<entry>2</entry>
<entry>
Returns a string containing the abbreviated day of week
(english-gregorian)
</entry>
</row>
</tbody>
</tgroup>
</table></para>
</refsect1>
</refentry>
</table>
</para>
</refsect1>
</refentry>
<refentry id="function.easter-date">
<refnamediv>
<refname>easter_date</refname>
<refpurpose>get UNIX timestamp for midnight on Easter of a given year</refpurpose>
<refpurpose>
Get UNIX timestamp for midnight on Easter of a given year
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
@ -330,9 +351,9 @@ echo("$gregorian\n");
<paramdef>int <parameter>year</parameter></paramdef>
</funcsynopsis>
<para>
Returns the UNIX timestamp corresponding to midnight on
Easter of the given year. If no year is specified, the
current year is assumed.
Returns the UNIX timestamp corresponding to midnight on Easter of
the given year. If no year is specified, the current year is
assumed.
</para>
<para>
<emphasis>Warning:</emphasis> This function will generate
@ -340,27 +361,26 @@ echo("$gregorian\n");
timestamps (i.e. before 1970 or after 2037).
<example>
<title><function>easter_date</function> example</title>
<programlisting>
echo date( "M-d-Y", easter_date(1999) ); /* "Apr-04-1999" */
echo date( "M-d-Y", easter_date(2000) ); /* "Apr-23-2000" */
echo date( "M-d-Y", easter_date(2001) ); /* "Apr-15-2001" */
</programlisting>
<programlisting role="php">
echo date ("M-d-Y", easter_date(1999)); /* "Apr-04-1999" */
echo date ("M-d-Y", easter_date(2000)); /* "Apr-23-2000" */
echo date ("M-d-Y", easter_date(2001)); /* "Apr-15-2001" */
</programlisting>
</example>
</para>
<para>
The date of Easter Day was defined by the Council of
Nicaea in AD325 as the Sunday after the first full moon
which falls on or after the Spring Equinox. The
Equinox is assumed to always fall on 21st March, so the
calculation reduces to determining the date of the full
moon and the date of the following Sunday. The algorithm
used here was introduced around the year 532 by Dionysius
Exiguus. Under the Julian Calendar (for years before 1753)
a simple 19-year cycle is used to track the phases of the Moon.
Under the Gregorian Calendar (for years after 1753 - devised
by Clavius and Lilius, and introduced by Pope Gregory XIII
in October 1582, and into Britain and its then colonies in
September 1752) two correction factors are added to make the
The date of Easter Day was defined by the Council of Nicaea in
AD325 as the Sunday after the first full moon which falls on or
after the Spring Equinox. The Equinox is assumed to always fall
on 21st March, so the calculation reduces to determining the date
of the full moon and the date of the following Sunday. The
algorithm used here was introduced around the year 532 by
Dionysius Exiguus. Under the Julian Calendar (for years before
1753) a simple 19-year cycle is used to track the phases of the
Moon. Under the Gregorian Calendar (for years after 1753 -
devised by Clavius and Lilius, and introduced by Pope Gregory
XIII in October 1582, and into Britain and its then colonies in
September 1752) two correction factors are added to make the
cycle more accurate.
</para>
<para>
@ -377,7 +397,10 @@ echo date( "M-d-Y", easter_date(2001) ); /* "Apr-15-2001" */
<refentry id="function.easter-days">
<refnamediv>
<refname>easter_days</refname>
<refpurpose>get number of days after March 21 on which Easter falls for a given year</refpurpose>
<refpurpose>
Get number of days after March 21 on which Easter falls for a
given year
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
@ -387,35 +410,36 @@ echo date( "M-d-Y", easter_date(2001) ); /* "Apr-15-2001" */
</funcsynopsis>
<para>
Returns the number of days after March 21 on which Easter falls
for a given year. If no year is specified, the current year is assumed.
for a given year. If no year is specified, the current year is
assumed.
</para>
<para>
This function can be used instead of <function>easter_date</function>
to calculate Easter for years which fall outside the range of UNIX
timestamps (i.e. before 1970 or after 2037).
This function can be used instead of
<function>easter_date</function> to calculate Easter for years
which fall outside the range of UNIX timestamps (i.e. before 1970
or after 2037).
<example>
<title><function>easter_date</function> example</title>
<programlisting>
echo easter_days(1999); /* 14, i.e. April 4 */
echo easter_days(1492); /* 32, i.e. April 22 */
echo easter_days(1913); /* 2, i.e. March 23 */
</programlisting>
<title><function>Easter_date</function> example</title>
<programlisting role="php">
echo easter_days (1999); /* 14, i.e. April 4 */
echo easter_days (1492); /* 32, i.e. April 22 */
echo easter_days (1913); /* 2, i.e. March 23 */
</programlisting>
</example>
</para>
<para>
The date of Easter Day was defined by the Council of
Nicaea in AD325 as the Sunday after the first full moon
which falls on or after the Spring Equinox. The
Equinox is assumed to always fall on 21st March, so the
calculation reduces to determining the date of the full
moon and the date of the following Sunday. The algorithm
used here was introduced around the year 532 by Dionysius
Exiguus. Under the Julian Calendar (for years before 1753)
a simple 19-year cycle is used to track the phases of the Moon.
Under the Gregorian Calendar (for years after 1753 - devised
by Clavius and Lilius, and introduced by Pope Gregory XIII
in October 1582, and into Britain and its then colonies in
September 1752) two correction factors are added to make the
The date of Easter Day was defined by the Council of Nicaea in
AD325 as the Sunday after the first full moon which falls on or
after the Spring Equinox. The Equinox is assumed to always fall
on 21st March, so the calculation reduces to determining the date
of the full moon and the date of the following Sunday. The
algorithm used here was introduced around the year 532 by
Dionysius Exiguus. Under the Julian Calendar (for years before
1753) a simple 19-year cycle is used to track the phases of the
Moon. Under the Gregorian Calendar (for years after 1753 -
devised by Clavius and Lilius, and introduced by Pope Gregory
XIII in October 1582, and into Britain and its then colonies in
September 1752) two correction factors are added to make the
cycle more accurate.
</para>
<para>
@ -437,20 +461,23 @@ echo easter_days(1913); /* 2, i.e. March 23 */
<title>Description</title>
<funcsynopsis>
<funcdef>int <function>unixtojd</function></funcdef>
<paramdef>int <parameter><optional>timestamp</optional></parameter></paramdef>
<paramdef>int
<parameter><optional>timestamp</optional></parameter>
</paramdef>
</funcsynopsis>
<para>
Return the Julian Day for a UNIX <parameter>timestamp</parameter>
(seconds since 1.1.1970), or for the current day if no
Return the Julian Day for a UNIX <parameter>timestamp</parameter>
(seconds since 1.1.1970), or for the current day if no
<parameter>timestamp</parameter> is given.
</para>
<para>
See also <function>jdtounix</function>.
</para>
<para>
This function is only available in PHP versions
after PHP4RC1.
</para>
<note>
<para>
This function is only available in PHP versions after PHP4RC1.
</para>
</note>
</refsect1>
</refentry>
@ -466,19 +493,20 @@ echo easter_days(1913); /* 2, i.e. March 23 */
<paramdef>int <parameter>jday</parameter></paramdef>
</funcsynopsis>
<para>
This function will return a UNIX timestamp corresponding
to the Julian Day given in <parameter>jday</parameter>
or false if <parameter>jday</parameter> is not inside
the UNIX epoch (Gregorian years between 1970 and 2037 or
2440588 &lt;= <parameter>jday</parameter> &lt;= 2465342 )
This function will return a UNIX timestamp corresponding to the
Julian Day given in <parameter>jday</parameter> or false if
<parameter>jday</parameter> is not inside the UNIX epoch
(Gregorian years between 1970 and 2037 or 2440588 &lt;=
<parameter>jday</parameter> &lt;= 2465342 )
</para>
<para>
See also <function>jdtounix</function>.
</para>
<para>
This function is only available in PHP versions
after PHP4RC1.
</para>
<note>
<para>
This function is only available in PHP versions after PHP4RC1.
</para>
</note>
</refsect1>
</refentry>
@ -494,7 +522,7 @@ sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
sgml-parent-document:nil
sgml-default-dtd-file:"../manual.ced"
sgml-default-dtd-file:"../../manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil