<?php
// You need to replace this section in Function EgyptianCalendar
// As well as Function MayanTihkalCalendar
$revolutionsperyear = $ttl_num / $i;
$numyears = floor((ceil($roun) / $revolutionsperyear));
$avg_num_month = $ttl_num_months/$i;
$jtl = abs(abs($roun) - ceil($revolutionsperyear*($numyears+1)));
while($month==0){
$day=0;
$u=0;
foreach($monthusage as $key => $item){
$t=0;
foreach($item as $numdays){
$t++;
$tt=0;
for($sh=1;$sh<=$numdays;$sh++){
$ii=$ii+1;
$tt++;
if ($ii==floor($jtl)){
if ($roun<0){
$daynum = $tt;
$month = $t;
} else {
$daynum = $numdays-($tt-1);
$month = $avg_num_month-($t-1);
}
$sequence = $key;
$nodaycount=true;
}
}
if ($nodaycount==false)
$day++;
}
$u++;
}
}
?>
This section of code need to be changed in the calculation I noticed today in our RounCalendar we had a zero day this function will calculate the month and day correctly for the calendars, it is a pretty universe piece of code, I am sorry it wasn't properly tested and need some refactoring.
カレンダー関数
導入
カレンダー関数は、異なったカレンダーフォーマット間の変換を 簡単に行う関数の集まりです。標準としているのは、ユリウス積算日です。 ユリウス積算日は、紀元前 4713 年 1 月 1 日から数え始めわれています。 カレンダーシステム間の変換を行うには、ユリウス積算日に変換した後 に選択したカレンダーシステムに変換しなければなりません。 ユリウス積算日はユリウス暦とは全く違います! ユリウス積算日の詳細を知りたい場合は、 » http://www.hermetic.ch/cal_stud/jdn.htm を参照ください。 カレンダーシステムに関する情報を知りたい場合は、 » http://www.fourmilab.ch/documents/calendar/ を参照ください。 本説明にはこのページからの引用が含まれています。 このページの内容はこのチュートリアルにも反映/引用されています。
インストール手順
これらの関数を動作させるには、 --enable-calendar を指定して PHP をコンパイルする必要があります。
Windows 版の PHP には この拡張モジュールのサポートが組み込まれています。これらの関数を使用 するために拡張モジュールを追加でロードする必要はありません。
実行時設定
設定ディレクティブは定義されていません。
リソース型
リソース型は定義されていません。
定義済み定数
以下の定数が定義されています。 この関数の拡張モジュールが PHP 組み込みでコンパイルされているか、 実行時に動的にロードされている場合のみ使用可能です。
- CAL_GREGORIAN (integer)
- CAL_JULIAN (integer)
- CAL_JEWISH (integer)
- CAL_FRENCH (integer)
- CAL_NUM_CALS (integer)
- CAL_DOW_DAYNO (integer)
- CAL_DOW_SHORT (integer)
- CAL_DOW_LONG (integer)
- CAL_MONTH_GREGORIAN_SHORT (integer)
- CAL_MONTH_GREGORIAN_LONG (integer)
- CAL_MONTH_JULIAN_SHORT (integer)
- CAL_MONTH_JULIAN_LONG (integer)
- CAL_MONTH_JEWISH (integer)
- CAL_MONTH_FRENCH (integer)
以下の定数は、PHP 4.3.0 以降で使用可能です。
- CAL_EASTER_DEFAULT (integer)
- CAL_EASTER_ROMAN (integer)
- CAL_EASTER_ALWAYS_GREGORIAN (integer)
- CAL_EASTER_ALWAYS_JULIAN (integer)
以下の定数は、PHP 5.0.0 以降で使用可能です。
目次
- cal_days_in_month — 指定した年とカレンダーについて、月の日数を返す
- cal_from_jd — ユリウス積算日からサポートされるカレンダーに変換する
- cal_info — 特定のカレンダーに関する情報を返す
- cal_to_jd — サポートされるカレンダーからユリウス積算日に変換する
- easter_date — 指定した年における復活祭の真夜中のUnix時を得る
- easter_days — 指定した年において、3 月 21 日から復活祭までの日数を得る
- FrenchToJD — フランス革命暦をユリウス積算日に変換する
- GregorianToJD — グレゴリウス日をユリウス積算日に変換する
- JDDayOfWeek — 曜日を返す
- JDMonthName — 月の名前を返す
- JDToFrench — ユリウス積算日をフランス革命暦(共和暦)に変換する
- JDToGregorian — ユリウス積算日をグレゴリウス日に変換する
- jdtojewish — ユリウス積算日をユダヤ暦に変換する
- JDToJulian — ユリウス積算日をユリウス暦に変換する
- jdtounix — ユリウス歴を Unix タイムスタンプに変換する
- JewishToJD — ユダヤ暦の日付けをユリウス積算日に変換する
- JulianToJD — ユリウス暦をユリウス積算日に変換する
- unixtojd — Unix タイムスタンプをユリウス歴に変換する
カレンダー
simon at chronolabs dot org dot au
20-Nov-2007 05:20
20-Nov-2007 05:20
simon at chronolabs dot org dot au
10-Nov-2007 04:44
10-Nov-2007 04:44
This is the egyptian calendar which was the first 365 day calendar on the planet it has no leap year which makes it a little inaccurate but you can work on your own implementation of this code when you like, this is another implementation of the roun floating point code which is a universal code for generating date codec's you can make practically all calendars with this code the $pweight is based on my research on carbon date stamping etc of when egypt epoch or PPO was made, some people argue a few thousand years while other can date egypts epoch being around 30000 years ago!! This is on the basis of tidal marking on statues and momuments when the are was covered in water after construction from sea level rising.
<?php
print_r(EgyptCalendar(time(),0));
function EgyptianCalendar($unix_time, $gmt,
$poffset = '1970-02-26 7:45 PM',
$pweight = '-9777600.22222222223',
$defiency='nonedeficient',
$timeset= array("hours" => 24,
"minutes" => 60,
"seconds" => 60))
{
// Code Segment 1 – Calculate Floating Point
$tme = $unix_time;
if ($gmt>0){$gmt=-$gmt;} else {$gmt=abs($gmt);}
$ptime = strtotime($poffset)+(60*60*gmt);
$weight = $pweight+(1*gmt);
$egypt_xa = ($tme)/(24*60*60);
$egypt_ya = $ptime/(24*60*60);
$egypt = (($egypt_xa -$egypt_ya) -
$weight)+(microtime/999999);
// Code Segment 2 – Set month day arrays
$nonedeficient = array(
"seq1" => array(30,30,30,30,30,30,30,30,30,30,30,30,5));
$monthnames = array(
"seq1" => array('Thoth','Phaophi','Athyr','Choiak',
'Tybi', 'Mecheir','Phamenoth','Pharmuthi','Pachon',
'Payni','Epiphi','Mesore','epagomenai'));
$monthusage = isset($defiency) ? ${$defiency} : $deficient;
// Code Segment 3 – Calculate month number, day number
foreach($monthusage as $key => $item){
$i++;
foreach($item as $numdays){
$ttl_num=$ttl_num+$numdays;
$ttl_num_months++;
}
}
$revolutionsperyear = $ttl_num / $i;
$numyears = egyptd((floor($egypt) / $revolutionsperyear),0);
$avg_num_month = $ttl_num_months/$i;
$jtl = abs(abs($egypt) -
ceil($revolutionsperyear*($numyears+1)));
while($month==0){
$day=0;
$u=0;
foreach($monthusage as $key => $item){
$t=0;
foreach($item as $numdays){
$t++;
$tt=0;
for($sh=1;$sh<=$numdays;$sh++){
$ii=$ii+1;
$tt++;
if ($ii==floor($jtl)){
if ($egypt>0){
$daynum = $tt;
$month = $t;
} else {
$daynum = $numdays-$tt;
$month = $avg_num_month-$t;
}
$sequence = $key;
$nodaycount=true;
}
}
if ($nodaycount==false)
$day++;
}
$u++;
}
}
//$numyears = abs($numyears);
$timer = substr($egypt, strpos($egypt,'.')+1,
strlen($egypt)-strpos($egypt,'.')-1);
$egypt_out= $numyears.'/'.$month.'/'.$daynum.' '.$day.'.'.
floor(intval(substr($timer,0,2))/100*$timeset['hours']).':'.
floor(intval(substr($timer,2,2))/100*$timeset['minutes']).':'.
floor(intval(substr($timer,4,2))/100*$timeset['seconds']).'.'.
substr($timer,6,strlen($timer)-6);
$egypt_obj = array('year'=>$numyears,
'month'=>$month,
'mname' => $monthnames[$sequence][$month-1],
'day'=>$daynum,
'jtl'=>$jtl,
'day_count'=>$day,
'hours'=>floor(intval(substr($timer,0,2))/100
*$timeset['hours']),
'minute'=>floor(intval(substr($timer,2,2))/100
*$timeset['minutes']),
'seconds'=>floor(intval(substr($timer,4,2))/100
*$timeset['seconds']),
'microtime'=>substr($timer,6,strlen($timer)-6),
'strout'=>$egypt_out);
return $egypt_obj;
}
?>
btw in my previous post of the Mayan Tikal calendar the top part of the function was chopped off in my code cut and paste that is the line for the function which looks like, the top 3 line will need to be replace with:
<?php
print_r(MayanTikalCalendar(time(),0));
function MayanTikalCalendar($unix_time, $gmt,
?>
simon at chronolabs dot org dot au
08-Nov-2007 10:27
08-Nov-2007 10:27
Well this is the second part, well more the second calendar of Maya the Tikal there is two of them one for long count, one for general date seeding, this is using an implementation of floating point time (roun).
<?php
$maya = MayanTikalCalendar(time(),0);
print_r($maya);
$poffset = '2012-12-21 8:24 PM',
$pweight = '-1872000.22222222223',
$defiency='nonedeficient',
$timeset= array("hours" => 24,
"minutes" => 60,
"seconds" => 60))
{
// Code Segment 1 – Calculate Floating Point
$tme = $unix_time;
if ($gmt>0){ $gmt=-$gmt; } else { $gmt=abs($gmt); }
$ptime = strtotime($poffset)+(60*60*gmt);
$maya_xa = ($tme)/(24*60*60);
$maya_ya = $ptime/(24*60*60);
$maya = (($maya_xa -$maya_ya) - $pweight)+(microtime/999999);
// Code Segment 2 – Set month day arrays
$nonedeficient = array(
"seq1" => array(20,20,20,20,20,20,20,20,20,
20,20,20,20,20,20,20,20,20,5));
$monthnames = array("seq1" => array(
'Pop', 'Uo', 'Zip', 'Zot\'z', 'Tzec', 'Xul',
'Yaxkin', 'Mol', 'Ch\'en', 'Yax', 'Zac', 'Ceh',
'Mac', 'Kankin', 'Muan', 'Pax', 'Kayab',
'Cumku', 'Uayeb'));
$daynames = array("seq1" => array(
'Imix', 'Ik', 'Akbal', 'Kan', 'Chicchan',
'Cimi','Manik', 'Lamat', 'Muluc', 'Oc',
'Chuen', 'Eb', 'Ben', 'Ix', 'Men',
'Cib', 'Caban', 'Etz\'nab', 'Cauac', 'Ahau'));
$monthusage = isset($defiency) ? ${$defiency} : $deficient;
// Code Segment 3 – Calculate month number, day numbers etc
foreach($monthusage as $key => $item){
$i++;
foreach($item as $numdays){
$ttl_num=$ttl_num+$numdays;
$ttl_num_months++;
}
}
$revolutionsperyear = $ttl_num / $i;
$numyears = (round((floor($maya) / $revolutionsperyear),0));
$avg_num_month = $ttl_num_months/$i;
$jtl = abs(abs($maya) -
ceil($revolutionsperyear*($numyears+1)));
while($month==0){
$day=0;
$u=0;
foreach($monthusage as $key => $item){
$t=0;
foreach($item as $numdays){
$t++;
$tt=0;
for($sh=1;$sh<=$numdays;$sh++){
$ii=$ii+1;
$tt++;
if ($ii==floor($jtl)){
if ($maya>0){
$daynum = $tt;
$month = $t;
} else {
$daynum = $numdays-$tt;
$month = $avg_num_month-$t;
}
$sequence = $key;
$nodaycount=true;
}
}
if ($nodaycount==false)
$day++;
}
$u++;
}
}
$timer = substr($maya, strpos($maya,'.')+1,
strlen($maya)-strpos($maya,'.')-1);
$maya_out= $numyears.'/'.$month.'/'.$daynum.' '.$day.'.'.
floor(intval(substr($timer,0,2))/100*$timeset['hours']).':'.
floor(intval(substr($timer,2,2))/100*$timeset['minutes']).':'.
floor(intval(substr($timer,4,2))/100*$timeset['seconds']).'.'.
substr($timer,6,strlen($timer)-6);
$maya_obj = array(
'longcount'=>MayanLongCount($tme),'year'=>abs($numyears),
'month'=>$month, 'mname' => $monthnames[$sequence][$month-1],
'day'=>$daynum, 'dayname'=>$daynames[$sequence][$daynum-1],
'day'=>$daynum, 'jtl'=>$jtl, 'day_count'=>$day,
'hours'=> floor(intval(substr($timer,0,2))/100
*$timeset['hours']),
'minute'=> floor(intval(substr($timer,2,2))/100
*$timeset['minutes']),
'seconds'=>floor(intval(substr($timer,4,2))/100
*$timeset['seconds']),
'microtime'=>substr($timer,6,strlen($timer)-6),
'strout'=>$maya_out);
return $maya_obj;
}
?>
simon at chronolabs dot org dot au
08-Nov-2007 03:00
08-Nov-2007 03:00
This will return the mayan long count calendar which cycle reaches 13.0.0.0.0 in 2012, I have had to compress the changemaya function for this code library so if you want to space it out your more than welcome. It works with unix time. To call the routine use the following syntax. The mayan calendar is a day count that is around 5000 years old, it tracks our cestial position in the galaxy
<?php
echo MayanLongCount(time());
function MayanLongCount($tme){
$config = array('ppo' => array(13,0,0,0,0),
'epoch' => strtotime('2012-12-21'));
$diff=(($tme-$config['epoch'])/(60*60*24));
$ppo = changemaya($config['ppo'],ceil($diff));
return $ppo[0].'.'.$ppo[1].'.'.$ppo[2].'.'.$ppo[3].'.'.$ppo[4];
}
function changemaya($ppo,$diff){
if ($diff>0) { $amount=1; } else { $amount=-1; }
for ($sh=1;$sh<abs($diff);$sh++){ if ($ppo[4]+$amount>20){
if ($ppo[3]+$amount>20){ if ($ppo[2]+$amount>20){
if ($ppo[1]+$amount>20){ if ($ppo[0]+$amount>20){
$ppo[0]=0; $ppo[1]=0; $ppo[2]=0; $ppo[3]=0; $ppo[4]=0;
} else { $ppo[1]=0; $ppo[0]=$ppo[0]+$amount;}
} else { $ppo[2]=0; $ppo[1]=$ppo[1]+$amount; }
} else {$ppo[3]=0; $ppo[2]=$ppo[2]+$amount; }
} else { $ppo[4]=0; $ppo[3]=$ppo[3]+$amount; }
} elseif ($ppo[4]+$amount<0){ if ($ppo[3]+$amount<0){
if ($ppo[2]+$amount<0){ if ($ppo[1]+$amount<0){
if ($ppo[0]+$amount<0){ $ppo[0]=20; $ppo[1]=0;
$ppo[2]=0; $ppo[3]=0; $ppo[4]=0;
} else { $ppo[1]=20; $ppo[0]=$ppo[0]+$amount; }
} else { $ppo[2]=20; $ppo[1]=$ppo[1]+$amount; }
} else { $ppo[3]=20; $ppo[2]=$ppo[2]+$amount; }
} else { $ppo[4]=20; $ppo[3]=$ppo[3]+$amount; }
} else { $ppo[4]=$ppo[4]+$amount;}}
return $ppo;
}
?>
Thanks!!
Martin Lindhe
27-Sep-2007 09:08
27-Sep-2007 09:08
To calculate NTP timestamp from unix timestamp:
<?
function ntptime()
{
return 2208988800 + time();
}
?>
NTP timestamps are represented as a 64-bit unsigned fixed-
point number, in seconds relative to 0h on 1 January 1900.
schotm29 at hotmail dot com
07-Sep-2007 10:00
07-Sep-2007 10:00
fRay Fergusons light reimplimentation doesn't work all of the time, because of the inaccuracy in the calculations (it is quite accurate but not accurate enough for a live web app)
david dot scourfield at llynfi dot co dot uk
17-Aug-2007 07:13
17-Aug-2007 07:13
I created this function a while ago and needed it again recently, so had to trawl through some old files to find it. Thought I'd post it here in case anyone else finds it useful.
<?php
/*
* Function to calculate which days are British bank holidays (England & Wales) for a given year.
*
* Created by David Scourfield, 07 August 2006, and released into the public domain.
* Anybody may use and/or modify this code.
*
* USAGE:
*
* array calculateBankHolidays(int $yr)
*
* ARGUMENTS
*
* $yr = 4 digit numeric representation of the year (eg 1997).
*
* RETURN VALUE
*
* Returns an array of strings where each string is a date of a bank holiday in the format "yyyy-mm-dd".
*
* See example below
*
*/
function calculateBankHolidays($yr) {
$bankHols = Array();
// New year's:
switch ( date("w", strtotime("$yr-01-01 12:00:00")) ) {
case 6:
$bankHols[] = "$yr-01-03";
break;
case 0:
$bankHols[] = "$yr-01-02";
break;
default:
$bankHols[] = "$yr-01-01";
}
// Good friday:
$bankHols[] = date("Y-m-d", strtotime( "+".(easter_days($yr) - 2)." days", strtotime("$yr-03-21 12:00:00") ));
// Easter Monday:
$bankHols[] = date("Y-m-d", strtotime( "+".(easter_days($yr) + 1)." days", strtotime("$yr-03-21 12:00:00") ));
// May Day:
if ($yr == 1995) {
$bankHols[] = "1995-05-08"; // VE day 50th anniversary year exception
} else {
switch (date("w", strtotime("$yr-05-01 12:00:00"))) {
case 0:
$bankHols[] = "$yr-05-02";
break;
case 1:
$bankHols[] = "$yr-05-01";
break;
case 2:
$bankHols[] = "$yr-05-07";
break;
case 3:
$bankHols[] = "$yr-05-06";
break;
case 4:
$bankHols[] = "$yr-05-05";
break;
case 5:
$bankHols[] = "$yr-05-04";
break;
case 6:
$bankHols[] = "$yr-05-03";
break;
}
}
// Whitsun:
if ($yr == 2002) { // exception year
$bankHols[] = "2002-06-03";
$bankHols[] = "2002-06-04";
} else {
switch (date("w", strtotime("$yr-05-31 12:00:00"))) {
case 0:
$bankHols[] = "$yr-05-25";
break;
case 1:
$bankHols[] = "$yr-05-31";
break;
case 2:
$bankHols[] = "$yr-05-30";
break;
case 3:
$bankHols[] = "$yr-05-29";
break;
case 4:
$bankHols[] = "$yr-05-28";
break;
case 5:
$bankHols[] = "$yr-05-27";
break;
case 6:
$bankHols[] = "$yr-05-26";
break;
}
}
// Summer Bank Holiday:
switch (date("w", strtotime("$yr-08-31 12:00:00"))) {
case 0:
$bankHols[] = "$yr-08-25";
break;
case 1:
$bankHols[] = "$yr-08-31";
break;
case 2:
$bankHols[] = "$yr-08-30";
break;
case 3:
$bankHols[] = "$yr-08-29";
break;
case 4:
$bankHols[] = "$yr-08-28";
break;
case 5:
$bankHols[] = "$yr-08-27";
break;
case 6:
$bankHols[] = "$yr-08-26";
break;
}
// Christmas:
switch ( date("w", strtotime("$yr-12-25 12:00:00")) ) {
case 5:
$bankHols[] = "$yr-12-25";
$bankHols[] = "$yr-12-28";
break;
case 6:
$bankHols[] = "$yr-12-27";
$bankHols[] = "$yr-12-28";
break;
case 0:
$bankHols[] = "$yr-12-26";
$bankHols[] = "$yr-12-27";
break;
default:
$bankHols[] = "$yr-12-25";
$bankHols[] = "$yr-12-26";
}
// Millenium eve
if ($yr == 1999) {
$bankHols[] = "1999-12-31";
}
return $bankHols;
}
/*
* EXAMPLE:
*
*/
header("Content-type: text/plain");
$bankHolsThisYear = calculateBankHolidays(2007);
print_r($bankHolsThisYear);
?>
Will output this result:
Array
(
[0] => 2007-01-01
[1] => 2007-04-06
[2] => 2007-04-09
[3] => 2007-05-07
[4] => 2007-05-28
[5] => 2007-08-27
[6] => 2007-12-25
[7] => 2007-12-26
)
fRay Ferguson
21-Apr-2006 11:32
21-Apr-2006 11:32
The following is a light reimplimentation of some of these functions wich can be used in an include file to work around the lack of --with-calendar in php implimentations.
<?php
/* IMPLEMENTS SUBSET OF PHP CALENDAR FUNCTIONS ON SYSTEMS COMPILED W/O --enable-calendar */
if (!function_exists('cal_days_in_month')){
function cal_days_in_month($a_null, $a_month, $a_year) {
return date('t', mktime(0, 0, 0, $a_month+1, 0, $a_year));
}
}
if (!function_exists('cal_to_jd')){
function cal_to_jd($a_null, $a_month, $a_day, $a_year){
if ( $a_month <= 2 ){
$a_month = $a_month + 12 ;
$a_year = $a_year - 1 ;
}
$A = intval($a_year/100);
$B = intval($A/4) ;
$C = 2-$A+$B ;
$E = intval(365.25*($a_year+4716)) ;
$F = intval(30.6001*($a_month+1));
return intval($C+$a_day+$E+$F-1524) ;
}
}
if (!function_exists('get_jd_dmy')) {
function get_jd_dmy($a_jd){
$W = intval(($a_jd - 1867216.25)/36524.25) ;
$X = intval($W/4) ;
$A = $a_jd+1+$W-$X ;
$B = $A+1524 ;
$C = intval(($B-122.1)/365.25) ;
$D = intval(365.25*$C) ;
$E = intval(($B-$D)/30.6001) ;
$F = intval(30.6001*$E) ;
$a_day = $B-$D-$F ;
if ( $E > 13 ) {
$a_month=$E-13 ;
$a_year = $C-4715 ;
} else {
$a_month=$E-1 ;
$a_year=$C-4716 ;
}
return array($a_month, $a_day, $a_year) ;
}
}
if (!function_exists('jdmonthname')) {
function jdmonthname($a_jd,$a_mode){
$tmp = get_jd_dmy($a_jd) ;
$a_time = "$tmp[0]/$tmp[1]/$tmp[2]" ;
switch($a_mode) {
case 0:
return strftime("%b",strtotime("$a_time")) ;
case 1:
return strftime("%B",strtotime("$a_time")) ;
}
}
}
if (!function_exists('jddayofweek')) {
function jddayofweek($a_jd,$a_mode){
$tmp = get_jd_dmy($a_jd) ;
$a_time = "$tmp[0]/$tmp[1]/$tmp[2]" ;
switch($a_mode) {
case 1:
return strftime("%A",strtotime("$a_time")) ;
case 2:
return strftime("%a",strtotime("$a_time")) ;
default:
return strftime("%w",strtotime("$a_time")) ;
}
}
}
?>
amichauer at gmx dot de
28-Jun-2005 01:46
28-Jun-2005 01:46
<?php
class HijriCalendar
{
function monthName($i) // $i = 1..12
{
static $month = array(
"M�x�rr�m", "Safar", "Rabig-�l-�ww�l", "Rabig-�l-Ax�r",
"C�m�d-�l-�ww�l", "C�m�d-�l-Ax�r", "Rac�b", "���b�n",
"Ramazan", "��w�l", "Z�-�l-Q��d�", "Z�-�l-Xicc�"
);
return $month[$i-1];
}
function GregorianToHijri($time = null)
{
if ($time === null) $time = time();
$m = date('m', $time);
$d = date('d', $time);
$y = date('Y', $time);
return HijriCalendar::JDToHijri(
cal_to_jd(CAL_GREGORIAN, $m, $d, $y));
}
function HijriToGregorian($m, $d, $y)
{
return jd_to_cal(CAL_GREGORIAN,
HijriCalendar::HijriToJD($m, $d, $y));
}
# Julian Day Count To Hijri
function JDToHijri($jd)
{
$jd = $jd - 1948440 + 10632;
$n = (int)(($jd - 1) / 10631);
$jd = $jd - 10631 * $n + 354;
$j = ((int)((10985 - $jd) / 5316)) *
((int)(50 * $jd / 17719)) +
((int)($jd / 5670)) *
((int)(43 * $jd / 15238));
$jd = $jd - ((int)((30 - $j) / 15)) *
((int)((17719 * $j) / 50)) -
((int)($j / 16)) *
((int)((15238 * $j) / 43)) + 29;
$m = (int)(24 * $jd / 709);
$d = $jd - (int)(709 * $m / 24);
$y = 30*$n + $j - 30;
return array($m, $d, $y);
}
# Hijri To Julian Day Count
function HijriToJD($m, $d, $y)
{
return (int)((11 * $y + 3) / 30) +
354 * $y + 30 * $m -
(int)(($m - 1) / 2) + $d + 1948440 - 385;
}
};
$hijri = HijriCalendar::GregorianToHijri( time() );
echo $hijri[1].'. '.HijriCalendar::monthName($hijri[0]).' '.$hijri[2];
?>
jthome at fcgov dot com
03-Oct-2003 03:38
03-Oct-2003 03:38
Had a similar problem as curlee, except I needed to create a JDE_ERP date. [format is CYYDDD]
<?php
function jde_date_create($month, $day, $year){
/*
* NOTE: $month and $day CANNOT have leading zeroes,
* $year must be'YYYY' format
*/
$jde_year_prefix = substr($year, 0, 1) - 1;
$jde_year_suffix = substr($year, -2);
//note that valid years for mktime are 1902-2037
$timestamp = mktime(0,0,0,$month, $day, $year);
$baseline_timestamp = mktime(0,0,0,1,0,$year);
$day_count = round(($timestamp - $baseline_timestamp)/86400);
$day_count_padded = str_pad($day_count,3,"0",STR_PAD_LEFT);
return ($jde_year_prefix . $jde_year_suffix . $day_count_padded);
}
echo jde_date_create(6,25,2000);// will return '103176'
?>
--
Jim
curlee at mindspring dot com
30-Aug-2003 12:55
30-Aug-2003 12:55
I solved a problem with Julian dates that are used in the JD Edwards ERP package (running on AS/400). The Julian format for this system is as follows: CYYDDD
Where C is 0 for 1900 and 1 for 2000
DDD is the day of the year count
I used the mktime built-in php function to convert dates to the normal DD/MM/YYYY format. This function will convert dates that are between 1970 and 2038 (limitation of unix timestamps and the mktime function)
The $jde_date var needs to be a 6 len STRING.... if you use a numeric var type it will drop the leading 0 for any date that represents 1900.... this will botch the substr functions and thus make the whole thing wrong.
function jde_date_conv($jde_date)
{
$ct = substr($jde_date,0,1);
$yr = substr($jde_date,1,2);
$dy = substr($jde_date,3,3);
if($ct == 0) $yr_pfx = 19;
if($ct == 1) $yr_pfx = 20;
$tlt_yr = $yr_pfx.$yr;
$base_time = mktime(0,0,0,1,0,$tlt_yr);
$unix_time = ($dy * 86400) + $base_time;
return date("m/d/Y" , $unix_time);
}
carlj at vibez dot ca
17-Jun-2003 04:28
17-Jun-2003 04:28
Why not do something like this, to find the number of days in a month?
$monthNum = date("n"); // or any value from 1-12
$year = date("Y"); // or any value >= 1
$numDays = date("t",mktime(0,0,0,$monthNum,1,$year))
This will tell you if there is 28-31 days in a month
dy64 at dy64 dot de
12-Nov-2002 11:18
12-Nov-2002 11:18
Best performance:
/*
* Find the number of days in a month
* Year is between 1 and 32767 inclusive
* Month is between 1 and 12 inclusive
*/
function DayInMonth($month, $year) {
var $daysInMonth = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
if ($month != 2) return $daysInMonth[$month - 1];
return (checkdate($month, 29, $year)) ? 29 : 28;
}