function DatexHejri::_toGregorian in Datex 7.2

Islamic Calendar

Parameters

$i_y:

$i_m:

$i_d:

Return value

unknown_type

File

datex_api/DatexHejri.inc, line 158

Class

DatexHejri

@author Sina Salek

Code

function _toGregorian($i_y, $i_m, $i_d) {

  //$jd=$this->islamic_to_jd($i_y, $i_m, $i_d);

  //list($gy, $gm, $gd)=JDToGregorian($jd);
  $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;

  //$this->julianday = $jd;
  if ($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,
  );
}