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
)
PHP - Manual: 日历 函数
2024-12-21
日历 函数
目录
- cal_days_in_month — 返回某个历法中某年中某月的天数
- cal_from_jd — 转换Julian Day计数到一个支持的历法。
- cal_info — 返回选定历法的信息
- cal_to_jd — 从一个支持的历法转变为Julian Day计数。
- easter_date — 得到指定年份的复活节午夜时的Unix时间戳。
- easter_days — 得到指定年份的3月21日到复活节之间的天数
- FrenchToJD — 从一个French Republican历法的日期得到Julian Day计数。
- GregorianToJD — 转变一个Gregorian历法日期到Julian Day计数
- JDDayOfWeek — 返回星期的日期
- JDMonthName — 返回月份的名称
- JDToFrench — 转变一个Julian Day计数到French Republican历法的日期
- JDToGregorian — 转变一个Julian Day计数为Gregorian历法日期
- jdtojewish — 转换一个julian天数为Jewish历法的日期
- JDToJulian — 转变一个Julian Day计数到Julian历法的日期
- jdtounix — 转变Julian Day计数为一个Unix时间戳
- JewishToJD — 转变一个Jewish历法的日期为一个Julian Day计数
- JulianToJD — 转变一个Julian历法的日期为Julian Day计数
- unixtojd — 转变Unix时间戳为Julian Day计数
add a note
User Contributed Notes 10 notes
david dot scourfield at llynfi dot co dot uk ¶
14 years ago
obaida dot habboush at gmail dot com ¶
4 years ago
Hello ,
there is a mistake with function name
at class HijriCalendar {
.
.
.
.
.
.
function HijriToGregorian($m, $d, $y)
{
//// jd_to_cal -> It Should Be -> cal_to_jd
return jd_to_cal(CAL_GREGORIAN, HijriCalendar::HijriToJD($m, $d, $y));
}
}
simon at chronolabs dot org dot au ¶
14 years ago
This will return the mayan long count calendar which cycle reaches 13.0.0.0.0 in 2012, I have had to compress the changemaya function for this code library so if you want to space it out your more than welcome. It works with unix time. To call the routine use the following syntax. The mayan calendar is a day count that is around 5000 years old, it tracks our cestial position in the galaxy
<?php
echo MayanLongCount(time());
function MayanLongCount($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 $ppo;
}
?>
Thanks!!
jthome at fcgov dot com ¶
18 years ago
Had a similar problem as curlee, except I needed to create a JDE_ERP date. [format is CYYDDD]
<?php
function jde_date_create($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
simon at chronolabs dot org dot au ¶
14 years ago
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, $gmt,
?>
Anonymous ¶
9 months ago
<?php
class HijriCalendar
{
public static function monthName($i) // $i = 1..12
{
static $month = array(
"Moharram", "Safar", "Rabii-I", "Rabii-II",
"Jumada-I", "Jumada-II", "Rajab", "Chaaban",
"Ramadan", "Chawal", "Dhu-al-Qiida", "Dhu-al-Hijja"
);
return $month[$i-1];
}
public static 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, $y));
}
public static function HijriToGregorian($m, $d, $y)
{
return jd_to_cal(CAL_GREGORIAN,
HijriCalendar::HijriToJD($m, $d, $y));
}
# Julian Day Count To Hijri
public static function JDToHijri($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, $y);
}
# Hijri To Julian Day Count
public static function HijriToJD($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];
?>
simon at chronolabs dot org dot au ¶
14 years ago
<?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.
curlee at mindspring dot com ¶
18 years ago
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 $jde_date var needs to be a 6 len STRING.... if you use a numeric var type it will drop the leading 0 for any date that represents 1900.... this will botch the substr functions and thus make the whole thing wrong.
<?php
function jde_date_conv($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" , $unix_time);
}
?>
amichauer at gmx dot de ¶
16 years ago
<?php
class HijriCalendar
{
function monthName($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];
?>
simon at chronolabs dot org dot au ¶
14 years ago
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;
}
?>
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