HijriDateLib

CalendarAdjustment extends Calendar
in package

Hijri CalendarAdjustment Class is group of functions that help to get and correct adjustments to Umm Al-Qura Calendar

to set the default setting of this class use $hijri_settings variable which is an array with this sample structure:

$hijri_settings=array(
'langcode'=>'ar',
'defaultformat'=>'_j _M _Y??',
'umalqura'=> TRUE,
'adj_data'=> array(1426 => 57250, 1429 => 57339,),
'grdate_format' => 'j M Y',
);
Tags
copyright

2015-2022 Saeed Hubaishan

since
2.1.0
license

LGPL

license

GPL-2

author

Saeed Hubaishan

version
2.3.2
category

datetime, calendar

link
http://salafitech.net

Table of Contents

mjd_factor  = 2400000
int factor for convert julianday to modified julianday
umendjd  = 2479960
the Um Al-Qura Calendar end Julian day
umendyear  = 1500
the Um Al-Qura Calendar end year
umstartjd  = 2415140
the Um Al-Qura Calendar start Julian day
umstartyear  = 1318
the Um Al-Qura Calendar start year
$supported_languages  : array<string|int, mixed>
$umalqura  : bool
$adj_data  : array<string|int, mixed>
$umdata  : array<string|int, int>
$umdata_clear  : array<string|int, mixed>
$grdate_format  : string
__construct()  : Calendar
Create new hijri\CalendarAdjustment object according to given settings
add_adj()  : bool
Adds or modifies adjustment to the calendar object
auto_del_info()  : array<string|int, mixed>
Gives information of must delete adjustments if given month adjustment deleted
check_auto_adj()  : array<string|int, mixed>
Gives you array of adj_data must added if you adjust the given month with the given modified julian day
check_auto_del()  : array<string|int, int>
Returns array of month adjustment must be deleted if the given month adjustment deleted
checkHijriDate()  : bool
Checks the given Hijri date, returns true is the date is correct
days_in_month()  : int
Returns count of days in month (29 or 30)
del_adj()  : void
Deletes the adjustment of the specified month
english_suffix()  : string
returns english suffix for number
get_adjdata()  : string|array<string|int, mixed>
returns the adjustment data
get_current_adjs()  : array<string|int, mixed>
Gives you an array of current Umm Al-Qura adjustments
get_possible_starts()  : array<string|int, mixed>
Gets an array of possible starts of Hijri month according to Umm Al-Qura Data and current Adjustments
GregorianToHijri()  : array<string|int, mixed>
Return Hijri Date from Gregorian date
HijriToGregorian()  : array<string|int, mixed>
Return Gregorian Date from Hijri date
HijriToJD()  : int
Returns julianday from Hijri date
HijriToJulian()  : array<string|int, mixed>
Returns Julian Date from Hijri date
HijriToWestern()  : array<string|int, mixed>
Return Western Date from Hijri date
jd2hijri()  : void
Returns Hijri date from julianday
JDToHijri()  : string
Returns Hijri Date in Format month/day/year from julianday
JulianToHijri()  : array<string|int, mixed>
Returns Hijri Date from Julian date
leap_year()  : int
Return 1 if the given year is leap, 0 else
month_name()  : string
Returns the hijri month name in 20 languages
monthnames()  : array<string|int, mixed>
Returns array of the hijri month names in 20 languages
WesternToHijri()  : array<string|int, mixed>
Returns Hijri Date from Western date
get_umalquradata()  : array<string|int, mixed>|bool
Loads Um Al-Qura data and apply the adjustments

Constants

mjd_factor

int factor for convert julianday to modified julianday

public mixed mjd_factor = 2400000

umendjd

the Um Al-Qura Calendar end Julian day

public mixed umendjd = 2479960

umendyear

the Um Al-Qura Calendar end year

public mixed umendyear = 1500

umstartjd

the Um Al-Qura Calendar start Julian day

public mixed umstartjd = 2415140

umstartyear

the Um Al-Qura Calendar start year

public mixed umstartyear = 1318

Properties

$supported_languages

public static array<string|int, mixed> $supported_languages = array('ar', 'en', 'fa', 'ur', 'sq', 'az', 'bn', 'bs', 'zh', 'fr', 'de', 'hi', 'id', 'ckb', 'ms', 'ru', 'es', 'tr', 'pt', 'it')

Array of supported langcodes

Tags
static

$umalqura

public bool $umalqura = TRUE

TRUE to use Um Al-Qura algorithm, FALSE to use Hijri Tabular Algorithm

$adj_data

protected array<string|int, mixed> $adj_data

the Um AlQura adjustment data, keys are month indexes from umstartyear, values are modified Julian day

$umdata

protected array<string|int, int> $umdata

The Um Al-Qura Data

$umdata_clear

protected array<string|int, mixed> $umdata_clear

original Umm Al-Qura Data without any adjustments

$grdate_format

private string $grdate_format

The date format to get Gregorian dates form adjustment information

Methods

__construct()

Create new hijri\CalendarAdjustment object according to given settings

public __construct([array<string|int, mixed> $settings = array() ]) : Calendar
Parameters
$settings : array<string|int, mixed> = array()

Array contains one or more settings of the hijri CalendarAdjustment object these settings are:

adj_data: string|array
string: contains Um Al-Qura adjustment data that got by function get_adjdata(TRUE) of CalendarAdjustment class or array contains Um Al-Qura adjustment data that got by function get_adjdata(FALSE)
grdate_format: string
date format to show the Gregorian dates in adjustment process
if not set, the defaults from $hijri_settings global variable will be used.
Tags
global

array $hijri_settings global hijri calendar settings

Return values
Calendar

hijri\CalendarAdjustment object with the specified settings.

add_adj()

Adds or modifies adjustment to the calendar object

public add_adj(int $month, int $year, int|string $new_month_start) : bool
Parameters
$month : int

the Hijri month

$year : int

the year of Hijri month

$new_month_start : int|string

the new start of the Hijri Month can be integer (modified julian day) or string (Gregorian date (d/m/yyyy) format)

Tags
since
2.1.0
Return values
bool

TRUE if the succeeded or FALSE if not

this will add the adjustment only to the current object if you want to save it you must use get_adj_txt()

auto_del_info()

Gives information of must delete adjustments if given month adjustment deleted

public auto_del_info(int $month, int $year) : array<string|int, mixed>
Parameters
$month : int

the Hijri month

$year : int

the Hijri Year

Tags
since
2.1.0
Return values
array<string|int, mixed>

array of must to delete month adjustments, keys are 'month','year'

check_auto_adj()

Gives you array of adj_data must added if you adjust the given month with the given modified julian day

public check_auto_adj(int $off, int $v) : array<string|int, mixed>
Parameters
$off : int

The index of the month to be adjusted can be given by function month2off

$v : int

(modified julian day) of the new start of the month

Tags
since
2.1.0
Return values
array<string|int, mixed>

Array of adj_data must by applied if the start of month adjusted to the given day

check_auto_del()

Returns array of month adjustment must be deleted if the given month adjustment deleted

public check_auto_del(int $off) : array<string|int, int>
Parameters
$off : int

the index of the month adjustment you want to delete can be given by function month2off

Tags
since
2.1.0
Return values
array<string|int, int>

Array of index of month adjustment must be deleted

checkHijriDate()

Checks the given Hijri date, returns true is the date is correct

public checkHijriDate(int $year, int $month, int $day) : bool
Parameters
$year : int

the Hijri year

$month : int

the Hijri month

$day : int

the Hijri day

Return values
bool

TRUE if the given date is correct, FALSE else

days_in_month()

Returns count of days in month (29 or 30)

public days_in_month(int $month, int $year[, bool $umalqura = null ]) : int
Parameters
$month : int

the Hijri month

$year : int

the Hijri year

$umalqura : bool = null

TRUE to use Um Al-Qura, FALSE to use Tabular, defaults from Calendar object

Return values
int

count of days in month 29 or 30

del_adj()

Deletes the adjustment of the specified month

public del_adj(int $month, int $year) : void
Parameters
$month : int

the Hijri month

$year : int

the Hijri Year

Tags
since
2.1.0
Return values
void

english_suffix()

returns english suffix for number

public static english_suffix(int $number) : string
Parameters
$number : int
Tags
since
2.3.0
Return values
string

get_adjdata()

returns the adjustment data

public get_adjdata([bool $txt = TRUE ]) : string|array<string|int, mixed>
Parameters
$txt : bool = TRUE

true to return a json encoded array string False to return array.

Tags
since
2.3.0

returned string is json encoded array

since
2.1.0
Return values
string|array<string|int, mixed>

string json encoded array adjustment data if $txt is true, or array of adjustment data if $txt if false

get_current_adjs()

Gives you an array of current Umm Al-Qura adjustments

public get_current_adjs() : array<string|int, mixed>
Tags
since
2.1.0
Return values
array<string|int, mixed>

An array contains (arrays) of current adjustments with these keys:

month: int
The hijri month
year: int
The hijri year of the month
current: string
Current start of the Hijri month in Gregorian date, the format will be same of grdate_format option or (d/m/yyyy)
default: string
The original start the Hijri month in Gregorian, the format will be same of grdate_format option or (d/m/yyyy)

get_possible_starts()

Gets an array of possible starts of Hijri month according to Umm Al-Qura Data and current Adjustments

public get_possible_starts(int $month, int $year) : array<string|int, mixed>
Parameters
$month : int

Hijri month

$year : int

Hijri year

Tags
since
2.1.0
Return values
array<string|int, mixed>

An array contains two numeric indexed variables (arrays) with these keys:

grdate: string
gregorion date (format d/m/yyyy) of the possible start of the hijri month
jd: int
modifed julian day of the possible start of the hijri month
currentset: bool
determine whether this date is the default start of the Hijri month
alsoadjdata: array
array contians another adjustments must be applied if the hijri month starts by this date with these keys:
month:int
The Hijri month which will be adjusted
year: int
The year of the hijri month which will be adjusted
grdate: string
The new start that Hijri month must be started in gregorion date (format d/m/yyyy)
jd: int
The modified julian day of the new start that Hijri month must be started
if the given month is out of umalqura range the function will return empty array

GregorianToHijri()

Return Hijri Date from Gregorian date

public GregorianToHijri(int $year, int $month, int $day) : array<string|int, mixed>
Parameters
$year : int

the Gregorian year

$month : int

the Gregorian month

$day : int

the Gregorian day

Return values
array<string|int, mixed>

An array contains Hijri Date: 'y' key for year,'m' key for month,'d' key for day

HijriToGregorian()

Return Gregorian Date from Hijri date

public HijriToGregorian(int $year, int $month, int $day) : array<string|int, mixed>
Parameters
$year : int

the Hijri year

$month : int

the Hijri month

$day : int

the Hijri day

Return values
array<string|int, mixed>

An array contains Gregorian Date: 'y' key for year,'m' key for month,'d' key for day

HijriToJD()

Returns julianday from Hijri date

public HijriToJD(int $month, int $day, int $year) : int
Parameters
$month : int

the Hijri month

$day : int

the Hijri day

$year : int

the Hijri year

Return values
int

julianday

HijriToJulian()

Returns Julian Date from Hijri date

public HijriToJulian(int $year, int $month, int $day) : array<string|int, mixed>
Parameters
$year : int

the Hijri year

$month : int

the Hijri month

$day : int

the Hijri day

Return values
array<string|int, mixed>

An array contains Julian Date: 'y' key for year,'m' key for month,'d' key for day

HijriToWestern()

Return Western Date from Hijri date

public HijriToWestern(int $year, int $month, int $day) : array<string|int, mixed>

The Western date is Julian date before 1582 and Gregorian after

Parameters
$year : int

the Hijri year

$month : int

the Hijri month

$day : int

the Hijri day

Return values
array<string|int, mixed>

An array contains Western Date: 'y' key for year,'m' key for month,'d' key for day

jd2hijri()

Returns Hijri date from julianday

public jd2hijri(int $julianday, int &$hy, int &$hm, int &$hd, int &$hz) : void
Parameters
$julianday : int

the julianday

$hy : int

variable to store Hijri year

$hm : int

variable to store Hijri month

$hd : int

variable to store Hijri day in month

$hz : int

variable to store Hijri day in year (starting from 0)

Return values
void

JDToHijri()

Returns Hijri Date in Format month/day/year from julianday

public JDToHijri(int $julianday) : string
Parameters
$julianday : int

the julianday

Return values
string

Hijri date in format month/day/year

JulianToHijri()

Returns Hijri Date from Julian date

public JulianToHijri(int $year, int $month, int $day) : array<string|int, mixed>
Parameters
$year : int

the Julian year

$month : int

the Julian month

$day : int

the Julian day

Return values
array<string|int, mixed>

An array contains Hijri Date: 'y' key for year,'m' key for month,'d' key for day

leap_year()

Return 1 if the given year is leap, 0 else

public leap_year(int $year[, bool $umalqura = null ]) : int
Parameters
$year : int

the Hijri Year

$umalqura : bool = null

TRUE to use Um Al-Qura, FALSE to use Tabular, defaults from Calendar object

Return values
int

1 if the given year is leap(have 355 days), 0 else

month_name()

Returns the hijri month name in 20 languages

public month_name(string $month[, string $langcode = 'ar' ][, bool $short = FALSE ]) : string
Parameters
$month : string

the month number

$langcode : string = 'ar'

the language ISO code

$short : bool = FALSE

return short names of months for European languages

Tags
since
2.2.0

$short param added

Return values
string

Hijri month name

monthnames()

Returns array of the hijri month names in 20 languages

public monthnames([string $langcode = 'ar' ]) : array<string|int, mixed>
Parameters
$langcode : string = 'ar'

the language code

Return values
array<string|int, mixed>

Array of Hijri month names, keys are month number (start from 1), values are string of month name

WesternToHijri()

Returns Hijri Date from Western date

public WesternToHijri(int $year, int $month, int $day) : array<string|int, mixed>

The Western date is Julian date before 1582 and Gregorian after

Parameters
$year : int

the Western year

$month : int

the Western month

$day : int

the Western day

Return values
array<string|int, mixed>

An array contains Hijri Date: 'y' key for year,'m' key for month,'d' key for day

get_umalquradata()

Loads Um Al-Qura data and apply the adjustments

protected get_umalquradata([bool $with_adj = TRUE ][, bool $return_array = FALSE ]) : array<string|int, mixed>|bool
Parameters
$with_adj : bool = TRUE

TRUE (default) to apply adjustments, FALSE to not

$return_array : bool = FALSE

True to return umdata array, False to load umdata to $umdata variable

Return values
array<string|int, mixed>|bool

array contains Um Al-Qura data if $return_array =true, bool true else

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