function gregorian_to_jalali($g_y, $g_m, $g_d)
{
$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);
$div = create_function('$a,$b','return (int) ($a / $b);');
$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 = $j_day_no % 12053;
$jy = 979+33*$j_np+4*$div($j_day_no,1461); /* 1461 = 365*4 + 4/4 */
$j_day_no %= 1461;
if ($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, $jd);
}
function jalali_to_gregorian($j_y, $j_m, $j_d)
{
$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);
$div = create_function('$a,$b','return (int) ($a / $b);');
$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 = $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 = $g_day_no % 36524;
if ($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 = $g_day_no % 365;
}
for ($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, $gd);
}
function create_date($format, $gmepoch, $tz)
{
global $board_config, $lang;
static $translate;
if ( empty($translate) && $board_config['default_lang'] != 'english' )
{
@reset($lang['datetime']);
while ( list($match, $replace) = @each($lang['datetime']) )
{
$translate[$match] = $replace;
}
}
//return ( !empty($translate) ) ? strtr(@gmdate($format, $gmepoch + (3600 * $tz)), $translate) : @gmdate($format, $gmepoch + (3600 * $tz));
if ($format==$board_config['default_dateformat']){
// $tempdate= gmdate("l|j|n|Y| - G:i", $gmepoch + (3600 * $tz));
$tempdate= gmdate("|j|n|Y| - G:i", $gmepoch + (3600 * $tz));
$temparray= explode ('|', $tempdate);
$jalali=gregorian_to_jalali( $temparray[3],$temparray[2],$temparray[1]);
$trans= array("1"=>"فروردين","2"=>"ارديبهشت","3"=>"خرداد","4"=>"تير","5"=>"مرداد","6"=>"شهريور","7"=>"مهر","8"=>"آبان","9"=>"آذر","10"=>"دي","11"=>"بهمن","12"=>"اسفند");
$jalali[1]=strtr ($jalali[1], $trans);
$finaldate= $temparray[0]." ".$jalali[2]." ".$jalali[1]." ".$jalali[0].$temparray[4];
return ( !empty($translate) ) ? strtr($finaldate, $translate) : $finaldate;
} else if ($format==$lang['DATE_FORMAT']){
// $tempdate= gmdate("l|j|n|Y| - G:i", $gmepoch + (3600 * $tz));
$tempdate= gmdate("|j|n|Y| - G:i", $gmepoch + (3600 * $tz));
$temparray= explode ('|', $tempdate);
$jalali=gregorian_to_jalali( $temparray[3],$temparray[2],$temparray[1]);
$trans= array("1"=>"فروردين","2"=>"ارديبهشت","3"=>"خرداد","4"=>"تير","5"=>"مرداد","6"=>"شهريور","7"=>"مهر","8"=>"آبان","9"=>"آذر","10"=>"دي","11"=>"بهمن","12"=>"اسفند");
$jalali[1]=strtr ($jalali[1], $trans);
$finaldate= $jalali[2]." ".$jalali[1]." ".$jalali[0];
return $finaldate;
//else {
//mehdi
// return ( !empty($translate) ) ? strtr(@gmdate($format, $gmepoch + (3600 * $tz)), $translate) : @gmdate($format, $gmepoch + (3600 * $tz));
}
}
