<?php
-
+/**********************************************************************
+ Copyright (C) FrontAccounting, LLC.
+ Released under the terms of the GNU General Public License, GPL,
+ as published by the Free Software Foundation, either version 3
+ of the License, or (at your option) any later version.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ See the License here <http://www.gnu.org/licenses/gpl-3.0.html>.
+***********************************************************************/
/*
date validation and parsing functions
These functions refer to the global variable defining the date format
-The date format is defined in config.php called DefaultDateFormat
+The date format is defined in config.php called dateformats
this can be a string either "d/m/Y" for UK/Australia/New Zealand dates or
-"m/d/Y" for US/Canada format dates
+"m/d/Y" for US/Canada format dates depending on setting in preferences.
*/
+function __date($year, $month, $day)
+{
+ global $SysPrefs, $tmonths;
+
+ $how = user_date_format();
+ $sep = $SysPrefs->dateseps[user_date_sep()];
+ $day = (int)$day;
+ $month = (int)$month;
+ if ($how < 3)
+ {
+ if ($day < 10)
+ $day = "0".$day;
+ if ($month < 10)
+ $month = "0".$month;
+ }
+ if ($how == 0)
+ return $month.$sep.$day.$sep.$year;
+ elseif ($how == 1)
+ return $day.$sep.$month.$sep.$year;
+ elseif ($how == 2)
+ return $year.$sep.$month.$sep.$day;
+ elseif ($how == 3)
+ return $tmonths[$month].$sep.$day.$sep.$year;
+ elseif ($how == 4)
+ return $day.$sep.$tmonths[$month].$sep.$year;
+ else
+ return $year.$sep.$tmonths[$month].$sep.$day;
+}
+
function is_date($date_)
{
- global $dateseps;
+ global $SysPrefs;
if ($date_ == null || $date_ == "")
return 0;
$how = user_date_format();
- $sep = $dateseps[user_date_sep()];
+ $sep = $SysPrefs->dateseps[user_date_sep()];
$date_ = trim($date_);
- $date_ = str_replace($sep, "", $date_);
- if (strlen($date_) == 6)
+ $date = str_replace($sep, "", $date_);
+
+ if ($how > 2)
{
- if ($how == 0)
+ global $tmonths;
+ $dd = explode($sep, $date_);
+ if ($how == 3)
{
- $date_array[0] = substr($date_,2,2);
- $date_array[1] = substr($date_,0,2);
- $date_array[2] = substr($date_,4,2);
+ $day = $dd[1];
+ $month = array_search($dd[0], $tmonths);
+ $year = $dd[2];
}
- elseif ($how == 1)
+ elseif ($how == 4)
{
- $date_array[0] = substr($date_,0,2);
- $date_array[1] = substr($date_,2,2);
- $date_array[2] = substr($date_,4,2);
+ $day = $dd[0];
+ $month = array_search($dd[1], $tmonths);
+ $year = $dd[2];
}
- else
+ else
{
- $date_array[0] = substr($date_,2,2);
- $date_array[1] = substr($date_,4,2);
- $date_array[2] = substr($date_,0,2);
+ $day = $dd[2];
+ $month = array_search($dd[1], $tmonths);
+ $year = $dd[0];
}
- }
- elseif (strlen($date_) == 8)
+ if ($year < 1000)
+ return 0;
+ }
+ elseif (strlen($date) == 6)
+ {
+ if ($how == 0)
+ {
+ $day = substr($date,2,2);
+ $month = substr($date,0,2);
+ $year = substr($date,4,2);
+ }
+ elseif ($how == 1)
+ {
+ $day = substr($date,0,2);
+ $month = substr($date,2,2);
+ $year = substr($date,4,2);
+ }
+ else
+ {
+ $day = substr($date,4,2);
+ $month = substr($date,2,2);
+ $year = substr($date,0,2);
+ }
+ }
+ elseif (strlen($date) == 8)
{
- if ($how == 0)
+ if ($how == 0)
{
- $date_array[0] = substr($date_,2,2);
- $date_array[1] = substr($date_,0,2);
- $date_array[2] = substr($date_,4,4);
+ $day = substr($date,2,2);
+ $month = substr($date,0,2);
+ $year = substr($date,4,4);
}
- elseif ($how == 1)
+ elseif ($how == 1)
{
- $date_array[0] = substr($date_,0,2);
- $date_array[1] = substr($date_,2,2);
- $date_array[2] = substr($date_,4,4);
+ $day = substr($date,0,2);
+ $month = substr($date,2,2);
+ $year = substr($date,4,4);
}
- else
+ else
{
- $date_array[0] = substr($date_,6,2);
- $date_array[1] = substr($date_,4,2);
- $date_array[2] = substr($date_,0,4);
+ $day = substr($date,6,2);
+ $month = substr($date,4,2);
+ $year = substr($date,0,4);
}
}
- if ((int)$date_array[2] > 9999)
+ if (!isset($year)|| (int)$year > 9999)
{
return 0;
}
-
- if (is_long((int)$date_array[0]) && is_long((int)$date_array[1]) && is_long((int)$date_array[2]))
+ if (is_long((int)$day) && is_long((int)$month) && is_long((int)$year))
{
- if (checkdate((int)$date_array[1],(int)$date_array[0],(int)$date_array[2]))
+ global $SysPrefs;
+ if ($SysPrefs->date_system == 1)
+ list($year, $month, $day) = jalali_to_gregorian($year, $month, $day);
+ elseif ($SysPrefs->date_system == 2)
+ list($year, $month, $day) = islamic_to_gregorian($year, $month, $day);
+ if (checkdate((int)$month, (int)$day, (int)$year))
{
return 1;
}
}
} //end of is_date function
-
function Today()
{
- return date(user_date_display());
+ global $SysPrefs;
+
+ $year = date("Y");
+ $month = date("n");
+ $day = date("j");
+ if ($SysPrefs->date_system == 1)
+ list($year, $month, $day) = gregorian_to_jalali($year, $month, $day);
+ elseif ($SysPrefs->date_system == 2)
+ list($year, $month, $day) = gregorian_to_islamic($year, $month, $day);
+ return __date($year, $month, $day);
}
function Now()
else
return date("H:i");
}
+//
+// Retrieve and optionaly set default date for new document.
+//
+function new_doc_date($date=null)
+{
+ if (isset($date) && $date != '')
+ $_SESSION['_default_date'] = $date;
+
+ if (!isset($_SESSION['_default_date']) || !sticky_doc_date())
+ $_SESSION['_default_date'] = Today();
+
+ return $_SESSION['_default_date'];
+}
function is_date_in_fiscalyear($date, $convert=false)
{
global $path_to_root;
- include_once($path_to_root . "/admin/db/company_db.inc");
+ include_once($path_to_root . "/admin/db/fiscalyears_db.inc");
- $myrow = get_current_fiscalyear();
- if ($myrow['closed'] == 1)
- return 0;
if ($convert)
$date2 = sql2date($date);
else
$date2 = $date;
+
+ if (is_date_closed($date2))
+ return 0;
+
+ if (user_check_access('SA_MULTIFISCALYEARS')) // allow all open years for this one
+ return is_date_in_fiscalyears($date2, false);
+
+ $myrow = get_current_fiscalyear();
$begin = sql2date($myrow['begin']);
$end = sql2date($myrow['end']);
if (date1_greater_date2($begin, $date2) || date1_greater_date2($date2, $end))
return 1;
}
+function is_date_closed($date)
+{
+ return !date1_greater_date2($date, sql2date(get_company_pref('gl_closing_date')));
+}
+
function begin_fiscalyear()
{
global $path_to_root;
- include_once($path_to_root . "/admin/db/company_db.inc");
+ include_once($path_to_root . "/admin/db/fiscalyears_db.inc");
$myrow = get_current_fiscalyear();
return sql2date($myrow['begin']);
function end_fiscalyear()
{
global $path_to_root;
- include_once($path_to_root . "/admin/db/company_db.inc");
+ include_once($path_to_root . "/admin/db/fiscalyears_db.inc");
$myrow = get_current_fiscalyear();
return sql2date($myrow['end']);
function begin_month($date)
{
- $date_array = explode_date_to_dmy($date);
- return date(user_date_display(), Mktime(0,0,0, $date_array[1], 1, $date_array[2]));
+ global $SysPrefs;
+ list($day, $month, $year) = explode_date_to_dmy($date);
+ if ($SysPrefs->date_system == 1)
+ list($year, $month, $day) = gregorian_to_jalali($year, $month, $day);
+ elseif ($SysPrefs->date_system == 2)
+ list($year, $month, $day) = gregorian_to_islamic($year, $month, $day);
+ return __date($year, $month, 1);
+}
+
+function days_in_month($month, $year)
+{
+ global $SysPrefs;
+
+ if ($SysPrefs->date_system == 1)
+ {
+ $days_in_month = array(31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, ((((((($year - (($year > 0) ? 474 : 473)) % 2820) + 474) + 38) * 682) % 2816) < 682 ? 30 : 29));
+ }
+ elseif ($SysPrefs->date_system == 2)
+ {
+ $days_in_month = array(30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, (((((11 * $year) + 14) % 30) < 11) ? 30 : 29));
+ }
+ else // gregorian date
+ $days_in_month = array(31, ((!($year % 4 ) && (($year % 100) || !($year % 400)))?29:28), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
+
+ return $days_in_month[$month - 1];
}
-function enc_month($date)
+function end_month($date)
{
- $date_array = explode_date_to_dmy($date);
- return date(user_date_display(), Mktime(0,0,0, $date_array[1] + 1, 0, $date_array[2]));
+ global $SysPrefs;
+
+ list($day, $month, $year) = explode_date_to_dmy($date);
+ if ($SysPrefs->date_system == 1)
+ {
+ list($year, $month, $day) = gregorian_to_jalali($year, $month, $day);
+ }
+ elseif ($SysPrefs->date_system == 2)
+ {
+ list($year, $month, $day) = gregorian_to_islamic($year, $month, $day);
+ }
+
+ return __date($year, $month, days_in_month($month, $year));
}
-function add_days($date, $days) // accepts - values as well
+function add_days($date, $days) // accepts negative values as well
{
- $date_array = explode_date_to_dmy($date);
- return date(user_date_display(), Mktime(0,0,0, $date_array[1], $date_array[0] + $days, $date_array[2]));
+ global $SysPrefs;
+ list($day, $month, $year) = explode_date_to_dmy($date);
+ $timet = mktime(0,0,0, $month, $day + $days, $year);
+ if ($SysPrefs->date_system == 1 || $SysPrefs->date_system == 2)
+ {
+ if ($SysPrefs->date_system == 1)
+ list($year, $month, $day) = gregorian_to_jalali(date("Y", $timet), date("n", $timet), date("j", $timet));
+ elseif ($SysPrefs->date_system == 2)
+ list($year, $month, $day) = gregorian_to_islamic(date("Y", $timet), date("n", $timet), date("j", $timet));
+ return __date($year, $month, $day);
+ }
+ list($year, $month, $day) = explode("-", date("Y-m-d", $timet));
+ return __date($year, $month, $day);
}
-function add_months($date, $months)
+function add_months($date, $months) // accepts negative values as well
{
- $date_array = explode_date_to_dmy($date);
- return date(user_date_display(), Mktime(0,0,0, $date_array[1] + $months, $date_array[0], $date_array[2]));
+ global $SysPrefs;
+
+ list($day, $month, $year) = explode_date_to_dmy($date);
+
+ $months += $year*12+$month;
+ $month = ($months-1)%12+1;
+ $year = ($months-$month)/12;
+
+ $timet = mktime(0,0,0, $month, min($day, days_in_month($month, $year)), $year);
+
+ if ($SysPrefs->date_system == 1 || $SysPrefs->date_system == 2)
+ {
+ if ($SysPrefs->date_system == 1)
+ list($year, $month, $day) = gregorian_to_jalali(date("Y", $timet), date("n", $timet), date("j", $timet));
+ elseif ($SysPrefs->date_system == 2)
+ list($year, $month, $day) = gregorian_to_islamic(date("Y", $timet), date("n", $timet), date("j", $timet));
+ return __date($year, $month, $day);
+ }
+ list($year, $month, $day) = explode("-", date("Y-m-d", $timet));
+ return __date($year, $month, $day);
}
-function add_years($date, $years)
+function add_years($date, $years) // accepts negative values as well
{
- $date_array = explode_date_to_dmy($date);
- return date(user_date_display(), Mktime(0,0,0, $date_array[1], $date_array[0], $date_array[2] + $years));
+ global $SysPrefs;
+
+ list($day, $month, $year) = explode_date_to_dmy($date);
+ $timet = Mktime(0,0,0, $month, $day, $year + $years);
+ if ($SysPrefs->date_system == 1 || $SysPrefs->date_system == 2)
+ {
+ if ($SysPrefs->date_system == 1)
+ list($year, $month, $day) = gregorian_to_jalali(date("Y", $timet), date("n", $timet), date("j", $timet));
+ elseif ($SysPrefs->date_system == 2)
+ list($year, $month, $day) = gregorian_to_islamic(date("Y", $timet), date("n", $timet), date("j", $timet));
+ return __date($year, $month, $day);
+ }
+ list($year, $month, $day) = explode("-", date("Y-m-d", $timet));
+ return __date($year, $month, $day);
}
//_______________________________________________________________
function sql2date($date_)
{
- global $dateseps;
+ global $SysPrefs;
//for MySQL dates are in the format YYYY-mm-dd
- $date_array = array();
- $how = user_date_format();
- $sep = $dateseps[user_date_sep()];
- if ($date_ == null || strlen($date_) == 0)
+ if ($date_ == null)
return "";
-
if (strpos($date_, "/"))
{ // In MySQL it could be either / or -
- $date_array = explode("/",$date_);
+ list($year, $month, $day) = explode("/", $date_);
}
elseif (strpos ($date_, "-"))
{
- $date_array = explode("-",$date_);
+ list($year, $month, $day) = explode("-", $date_);
}
+ if (!isset($day)) // data format error
+ return "";
- if (strlen($date_array[2]) > 4)
+ if (strlen($day) > 4)
{ /*chop off the time stuff */
- $date_array[2]= substr($date_array[2],0,2);
- }
-
- if ($how == 1)
- {
- return $date_array[2].$sep.$date_array[1].$sep.$date_array[0];
- }
- elseif ($how == 0)
- {
- return $date_array[1].$sep.$date_array[2].$sep.$date_array[0];
- }
- else
- {
- return $date_array[0].$sep.$date_array[1].$sep.$date_array[2];
+ $day = substr($day, 0, 2);
}
-
+ if ($SysPrefs->date_system == 1)
+ list($year, $month, $day) = gregorian_to_jalali($year, $month, $day);
+ elseif ($SysPrefs->date_system == 2)
+ list($year, $month, $day) = gregorian_to_islamic($year, $month, $day);
+ return __date($year, $month, $day);
} // end function sql2date
function date2sql($date_)
{
- global $dateseps;
+ global $SysPrefs, $tmonths;
/* takes a date in a the format specified in $DefaultDateFormat
and converts to a yyyy/mm/dd format */
$how = user_date_format();
- $sep = $dateseps[user_date_sep()];
+ $sep = $SysPrefs->dateseps[user_date_sep()];
+ $date_ = trim($date_);
if ($date_ == null || strlen($date_) == 0)
return "";
- $date_ =trim($date_);
- $date_ = str_replace($sep, "", $date_);
+ $year = $month = $day = 0;
+ // Split up the date by the separator based on "how" to split it
+ if ($how == 0 || $how == 3) // MMDDYYYY or MmmDDYYYY
+ list($month, $day, $year) = explode($sep, $date_);
+ elseif ($how == 1 || $how == 4) // DDMMYYYY or DDMmYYYY
+ list($day, $month, $year) = explode($sep, $date_);
+ else // $how == 2 || $how == 5, YYYYMMDD or YYYYMmmDD
+ list($year, $month, $day) = explode($sep, $date_);
- if (strlen($date_) == 6)
+ if ($how > 2)
{
- if ($how == 0)
- {
- $date_array[0] = substr($date_,2,2);
- $date_array[1] = substr($date_,0,2);
- $date_array[2] = substr($date_,4,2);
- }
- elseif ($how == 1)
- {
- $date_array[0] = substr($date_,0,2);
- $date_array[1] = substr($date_,2,2);
- $date_array[2] = substr($date_,4,2);
- }
- else
- {
- $date_array[0]= substr($date_,4,2);
- $date_array[1]= substr($date_,2,2);
- $date_array[2]= substr($date_,0,2);
- }
+ global $tmonths;
+ $month = array_search($month, $tmonths);
}
- elseif (strlen($date_) == 8)
- {
- if ($how == 0)
+ if ($year+$day+$month) {
+ //to modify assumption in 2030
+ if ($SysPrefs->date_system == 0 || $SysPrefs->date_system == 3)
{
- $date_array[0] = substr($date_,2,2);
- $date_array[1] = substr($date_,0,2);
- $date_array[2] = substr($date_,4,4);
- }
- elseif ($how == 1)
- {
- $date_array[0] = substr($date_,0,2);
- $date_array[1] = substr($date_,2,2);
- $date_array[2] = substr($date_,4,4);
- }
- else
+ if ((int)$year < 60)
+ {
+ $year = "20".$year;
+ }
+ elseif ((int)$year > 59 && (int)$year < 100)
+ {
+ $year = "19".$year;
+ }
+ }
+ if ((int)$year > 9999)
{
- $date_array[0] = substr($date_,6,2);
- $date_array[1] = substr($date_,4,2);
- $date_array[2] = substr($date_,0,4);
+ return 0;
}
+ if ($SysPrefs->date_system == 1)
+ list($year, $month, $day) = jalali_to_gregorian($year, $month, $day);
+ elseif ($SysPrefs->date_system == 2)
+ list($year, $month, $day) = islamic_to_gregorian($year, $month, $day);
}
+ return sprintf("%04d-%02d-%02d", $year, $month, $day);
+}// end of function
-//to modify assumption in 2030
-
- if ((int)$date_array[2] < 60)
- {
- $date_array[2] = "20".$date_array[2];
- }
- elseif ((int)$date_array[2] > 59 && (int)$date_array[2] < 100)
- {
- $date_array[2] = "19".$date_array[2];
+/**
+ * Compare dates in sql format.
+ * Return +1 if sql date1>date2, -1 if date1<date2,
+ * or 0 if dates are equal.
+ */
+function sql_date_comp($date1, $date2)
+{
+ @list($year1, $month1, $day1) = explode("-", $date1);
+ @list($year2, $month2, $day2) = explode("-", $date2);
+
+ if ($year1 != $year2) {
+ return $year1 < $year2 ? -1 : +1;
+ }
+ elseif ($month1 != $month2) {
+ return $month1 < $month2 ? -1 : +1;
}
- elseif ((int)$date_array[2] > 9999)
- {
- return 0;
+ elseif ($day1 != $day2) {
+ return $day1 < $day2 ? -1 : +1;
}
- return $date_array[2]."/".$date_array[1]."/".$date_array[0];
-}// end of function
+ return 0;
+}
+/*
+ Compare dates in user format.
+*/
+function date_comp($date1, $date2)
+{
+ $date1 = date2sql($date1);
+ $date2 = date2sql($date2);
+
+ return sql_date_comp($date1, $date2);
+}
function date1_greater_date2 ($date1, $date2)
{
$date1 = date2sql($date1);
$date2 = date2sql($date2);
- $date1_array = explode("/", $date1);
- $date2_array = explode("/", $date2);
- /*The 0 element of the array will be the year in either d/m/Y or m/d/Y formats */
+ @list($year1, $month1, $day1) = explode("-", $date1);
+ @list($year2, $month2, $day2) = explode("-", $date2);
- if ($date1_array[0] > $date2_array[0])
+ if ($year1 > $year2)
{
return 1;
}
- elseif ($date1_array[0] == $date2_array[0])
+ elseif ($year1 == $year2)
{
- if ($date1_array[1] > $date2_array[1])
+ if ($month1 > $month2)
{
return 1;
}
- elseif ($date1_array[1] == $date2_array[1])
+ elseif ($month1 == $month2)
{
- if ($date1_array[2] > $date2_array[2])
+ if ($day1 > $day2)
{
return 1;
}
return 0;
}
-
-function date_diff ($date1, $date2, $period)
+function date_diff2 ($date1, $date2, $period)
{
/* expects dates in the format specified in $DefaultDateFormat - period can be one of 'd','w','y','m'
$date1 = date2sql($date1);
$date2 = date2sql($date2);
- $date1_array = explode("/", $date1);
- $date2_array = explode("/", $date2);
+ list($year1, $month1, $day1) = explode("-", $date1);
+ list($year2, $month2, $day2) = explode("-", $date2);
- $date1_Stamp = mktime(0,0,0, (int)$date1_array[1],(int)$date1_array[2],(int)$date1_array[0]);
- $date2_Stamp = mktime(0,0,0, (int)$date2_array[1],(int)$date2_array[2],(int)$date2_array[0]);
- $difference = $date1_Stamp - $date2_Stamp;
+ $stamp1 = mktime(0,0,0, (int)$month1, (int)$day1, (int)$year1);
+ $stamp2 = mktime(0,0,0, (int)$month2, (int)$day2, (int)$year2);
+ $difference = $stamp1 - $stamp2;
/* difference is the number of seconds between each date negative if date_ 2 > date_ 1 */
switch ($period)
{
case "d":
- return (int) ($difference/(24*60*60));
- break;
+ return (int)($difference / (24 * 60 * 60));
case "w":
- return (int) ($difference/(24*60*60*7));
- break;
+ return (int)($difference / (24 * 60 * 60 * 7));
case "m":
- return (int) ($difference/(24*60*60*30));
- break;
+ return (int)($difference / (24 * 60 * 60 * 30));
case "s":
return $difference;
- break;
case "y":
- return (int) ($difference/(24*60*60*365.25));
- break;
+ return (int)($difference / (24 * 60 * 60 * 365.25));
default:
Return 0;
}
}
-Function explode_date_to_dmy($date_)
+function explode_date_to_dmy($date_)
{
- $date_ = date2sql($date_);
- if ($date_ == "")
+ $date = date2sql($date_);
+ if ($date == "")
{
- $disp = user_date_display();
- echo "<br>Dates must be entered in the format $disp. Sent was $date_<br>";
- exit;
+ return array(0,0,0);
}
- $date_array = explode("/", $date_);
- $temp = $date_array[0];
- $date_array[0] = $date_array[2];
- $date_array[2] = $temp;
- return $date_array;
+ list($year, $month, $day) = explode("-", $date);
+ return array($day, $month, $year);
}
-Function get_day($date_)
+function div($a, $b)
{
- $date_array = explode_date_to_dmy($date_);
-
- return $date_array[0];
+ return (int) ($a / $b);
}
+/* Based on convertor to and from Gregorian and Jalali calendars.
+ Copyright (C) 2000 Roozbeh Pournader and Mohammad Toossi
+ Released under GNU General Public License */
-Function get_month($date_)
+function gregorian_to_jalali ($g_y, $g_m, $g_d)
{
- $date_array = explode_date_to_dmy($date_);
+ $g_days_in_month = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
+ $j_days_in_month = array(31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29);
+
+ $gy = $g_y - 1600;
+ $gm = $g_m - 1;
+ $gd = $g_d - 1;
+
+ $g_day_no = 365 * $gy + div($gy + 3, 4) - div($gy + 99, 100) + div($gy + 399, 400);
+
+ for ($i = 0; $i < $gm; ++$i)
+ $g_day_no += $g_days_in_month[$i];
+ if ($gm > 1 && (($gy % 4 == 0 && $gy % 100 != 0) || ($gy % 400 == 0)))
+ /* leap and after Feb */
+ $g_day_no++;
+ $g_day_no += $gd;
+ $j_day_no = $g_day_no - 79;
+
+ $j_np = div($j_day_no, 12053); /* 12053 = 365*33 + 32/4 */
+ $j_day_no %= 12053;
+
+ $jy = 979 + 33 * $j_np + 4 * div($j_day_no, 1461); /* 1461 = 365*4 + 4/4 */
+
+ $j_day_no %= 1461;
- return $date_array[1];
+ if ($j_day_no >= 366)
+ {
+ $jy += div($j_day_no - 1, 365);
+ $j_day_no = ($j_day_no - 1) % 365;
+ }
+
+ for ($i = 0; $i < 11 && $j_day_no >= $j_days_in_month[$i]; ++$i)
+ $j_day_no -= $j_days_in_month[$i];
+ $jm = $i + 1;
+ $jd = $j_day_no + 1;
+
+ return array($jy, $jm, $jd);
}
-Function get_year($date_)
+function jalali_to_gregorian($j_y, $j_m, $j_d)
{
- $date_array = explode_date_to_dmy($date_);
+ $g_days_in_month = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
+ $j_days_in_month = array(31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29);
- return $date_array[2];
-}
+ $jy = $j_y - 979;
+ $jm = $j_m - 1;
+ $jd = $j_d - 1;
+
+ $j_day_no = 365 * $jy + div($jy, 33) * 8 + div($jy % 33 + 3, 4);
+ for ($i = 0; $i < $jm; ++$i)
+ $j_day_no += $j_days_in_month[$i];
+
+ $j_day_no += $jd;
+
+ $g_day_no = $j_day_no + 79;
+
+ $gy = 1600 + 400 * div($g_day_no, 146097); /* 146097 = 365*400 + 400/4 - 400/100 + 400/400 */
+ $g_day_no %= 146097;
+
+ $leap = true;
+ if ($g_day_no >= 36525) /* 36525 = 365*100 + 100/4 */
+ {
+ $g_day_no--;
+ $gy += 100 * div($g_day_no, 36524); /* 36524 = 365*100 + 100/4 - 100/100 */
+ $g_day_no %= 36524;
+
+ if ($g_day_no >= 365)
+ $g_day_no++;
+ else
+ $leap = false;
+ }
+ $gy += 4 * div($g_day_no, 1461); /* 1461 = 365*4 + 4/4 */
+ $g_day_no %= 1461;
+ if ($g_day_no >= 366)
+ {
+ $leap = false;
+ $g_day_no--;
+ $gy += div($g_day_no, 365);
+ $g_day_no %= 365;
+ }
-?>
+ for ($i = 0; $g_day_no >= $g_days_in_month[$i] + ($i == 1 && $leap); $i++)
+ $g_day_no -= $g_days_in_month[$i] + ($i == 1 && $leap);
+ $gm = $i + 1;
+ $gd = $g_day_no + 1;
+
+ return array($gy, $gm, $gd);
+}
+/* Based on Hidri Date Script
+ Released under GNU General Public License */
+function gregorian_to_islamic($g_y, $g_m, $g_d)
+{
+ $y = $g_y;
+ $m = $g_m;
+ $d = $g_d;
+ if (($y > 1582) || (($y == 1582) && ($m > 10)) || (($y == 1582) &&
+ ($m == 10) && ($d > 14)))
+ {
+ $jd = (int)((1461 * ($y + 4800 + (int)(($m - 14) / 12)))/ 4) +
+ (int)((367 * ($m - 2 - 12 * ((int)(($m - 14) / 12)))) / 12) -
+ (int)((3 * ((int)(($y + 4900 + (int)(($m - 14) / 12)) / 100))) / 4) + $d - 32075;
+ }
+ else
+ {
+ $jd = 367 * $y - (int)((7 * ($y + 5001 + (int)(($m - 9) / 7))) / 4) +
+ (int)((275 * $m) / 9) + $d + 1729777;
+ }
+ $l = $jd - 1948440 + 10632;
+ $n = (int)(($l - 1) / 10631);
+ $l = $l - 10631 * $n + 354;
+ $j = ((int)((10985 - $l) / 5316)) * ((int)((50 * $l) / 17719)) +
+ ((int)($l / 5670)) * ((int)((43 * $l) / 15238));
+ $l = $l - ((int)((30 - $j) / 15)) * ((int)((17719 * $j) / 50)) -
+ ((int)($j / 16)) * ((int)((15238 * $j) / 43)) + 29;
+ $m = (int)((24 * $l) / 709);
+ $d = $l - (int)((709 * $m) / 24);
+ $y = 30 * $n + $j - 30;
+ return array($y, $m, $d);
+}
+
+function islamic_to_gregorian($i_y, $i_m, $i_d)
+{
+ $y = $i_y;
+ $m = $i_m;
+ $d = $i_d;
+
+ $jd = (int)((11 * $y + 3) / 30) + 354 * $y + 30 * $m - (int)(($m - 1) / 2) + $d + 1948440 - 385;
+ if ($jd > 2299160)
+ {
+ $l = $jd + 68569;
+ $n = (int)((4 * $l) / 146097);
+ $l = $l - (int)((146097 * $n + 3) / 4);
+ $i = (int)((4000 * ($l + 1)) / 1461001);
+ $l = $l - (int)((1461 * $i) / 4) + 31;
+ $j = (int)((80 * $l) / 2447);
+ $d = $l - (int)((2447 * $j) / 80);
+ $l= (int)($j / 11);
+ $m = $j + 2 - 12 * $l;
+ $y = 100 * ($n - 49) + $i + $l;
+ }
+ else
+ {
+ $j = $jd + 1402;
+ $k = (int)(($j - 1) / 1461);
+ $l = $j - 1461 * $k;
+ $n = (int)(($l - 1) / 365) - (int)($l / 1461);
+ $i = $l - 365 * $n + 30;
+ $j = (int)((80 * $i) / 2447);
+ $d = $i - (int)((2447 * $j) / 80);
+ $i = (int)($j / 11);
+ $m = $j + 2 - 12 * $i;
+ $y = 4 * $k + $n + $i - 4716;
+ }
+ return array($y, $m, $d);
+}
projects / fa-stable.git / blobdiff