class JDF {
	
	/* In the name of Allah = بسم اللّه الرّحمن الرّحیم */

	/**
	 * @فارسی : توابع زمان و تاریخ هجری شمسی (جلالی) در پی اچ پی
	 * @name: Hijri_Shamsi,Solar(Jalali) Date and Time Functions
	 * @Author : Reza Gholampanahi & WebSite : http://jdf.scr.ir
	 * @License: GNU/LGPL _ Open Source & Free : [all public functions]
	 * @Version: 2.70 =>[ 1395/11/22 = 1438/05/12 = 2017/02/10 ]
	 */

	/*	F	*/
	 public function jdate( $format, $timestamp = '', $none = '', $time_zone = 'Asia/Tehran', $tr_num = 'fa' ) {

		$T_sec = 0;/* <= رفع خطاي زمان سرور ، با اعداد '+' و '-' بر حسب ثانيه */

		if ( $time_zone != 'local' ) {
			date_default_timezone_set( ( $time_zone === '' ) ? 'Asia/Tehran' : $time_zone );
		}
		$ts   = $T_sec + ( ( $timestamp === '' ) ? time() : $this->tr_num( $timestamp ) );
		$date = explode( '_', date( 'H_i_j_n_O_P_s_w_Y', $ts ) );
		list( $j_y, $j_m, $j_d ) = $this->gregorian_to_jalali( $date[8], $date[3], $date[2] );
		$doy = ( $j_m < 7 ) ? ( ( $j_m - 1 ) * 31 ) + $j_d - 1 : ( ( $j_m - 7 ) * 30 ) + $j_d + 185;
		$kab = ( ( ( ( $j_y % 33 ) % 4 ) - 1 ) == ( (int) ( ( $j_y % 33 ) * 0.05 ) ) ) ? 1 : 0;
		$sl  = strlen( $format );
		$out = '';
		for ( $i = 0; $i < $sl; $i ++ ) {
			$sub = substr( $format, $i, 1 );
			if ( $sub == '\\' ) {
				$out .= substr( $format, ++ $i, 1 );
				continue;
			}
			switch ( $sub ) {

				case'E':
				case'R':
				case'x':
				case'X':
					$out .= 'http://jdf.scr.ir';
					break;

				case'B':
				case'e':
				case'g':
				case'G':
				case'h':
				case'I':
				case'T':
				case'u':
				case'Z':
					$out .= date( $sub, $ts );
					break;

				case'a':
					$out .= ( $date[0] < 12 ) ? 'ق.ظ' : 'ب.ظ';
					break;

				case'A':
					$out .= ( $date[0] < 12 ) ? 'قبل از ظهر' : 'بعد از ظهر';
					break;

				case'b':
					$out .= (int) ( $j_m / 3.1 ) + 1;
					break;

				case'c':
					$out .= $j_y . '/' . $j_m . '/' . $j_d . ' ،' . $date[0] . ':' . $date[1] . ':' . $date[6] . ' ' . $date[5];
					break;

				case'C':
					$out .= (int) ( ( $j_y + 99 ) / 100 );
					break;

				case'd':
					$out .= ( $j_d < 10 ) ? '0' . $j_d : $j_d;
					break;

				case'D':
					$out .= $this->jdate_words( array( 'kh' => $date[7] ), ' ' );
					break;

				case'f':
					$out .= $this->jdate_words( array( 'ff' => $j_m ), ' ' );
					break;

				case'F':
					$out .= $this->jdate_words( array( 'mm' => $j_m ), ' ' );
					break;

				case'H':
					$out .= $date[0];
					break;

				case'i':
					$out .= $date[1];
					break;

				case'j':
					$out .= $j_d;
					break;

				case'J':
					$out .= $this->jdate_words( array( 'rr' => $j_d ), ' ' );
					break;

				case'k';
					$out .= $this->tr_num( 100 - (int) ( $doy / ( $kab + 365 ) * 1000 ) / 10, $tr_num );
					break;

				case'K':
					$out .= $this->tr_num( (int) ( $doy / ( $kab + 365 ) * 1000 ) / 10, $tr_num );
					break;

				case'l':
					$out .= $this->jdate_words( array( 'rh' => $date[7] ), ' ' );
					break;

				case'L':
					$out .= $kab;
					break;

				case'm':
					$out .= ( $j_m > 9 ) ? $j_m : '0' . $j_m;
					break;

				case'M':
					$out .= $this->jdate_words( array( 'km' => $j_m ), ' ' );
					break;

				case'n':
					$out .= $j_m;
					break;

				case'N':
					$out .= $date[7] + 1;
					break;

				case'o':
					$jdw = ( $date[7] == 6 ) ? 0 : $date[7] + 1;
					$dny = 364 + $kab - $doy;
					$out .= ( $jdw > ( $doy + 3 ) and $doy < 3 ) ? $j_y - 1 : ( ( ( 3 - $dny ) > $jdw and $dny < 3 ) ? $j_y + 1 : $j_y );
					break;

				case'O':
					$out .= $date[4];
					break;

				case'p':
					$out .= $this->jdate_words( array( 'mb' => $j_m ), ' ' );
					break;

				case'P':
					$out .= $date[5];
					break;

				case'q':
					$out .= $this->jdate_words( array( 'sh' => $j_y ), ' ' );
					break;

				case'Q':
					$out .= $kab + 364 - $doy;
					break;

				case'r':
					$key = $this->jdate_words( array( 'rh' => $date[7], 'mm' => $j_m ) );
					$out .= $date[0] . ':' . $date[1] . ':' . $date[6] . ' ' . $date[4] . ' ' . $key['rh'] . '، ' . $j_d . ' ' . $key['mm'] . ' ' . $j_y;
					break;

				case's':
					$out .= $date[6];
					break;

				case'S':
					$out .= 'ام';
					break;

				case't':
					$out .= ( $j_m != 12 ) ? ( 31 - (int) ( $j_m / 6.5 ) ) : ( $kab + 29 );
					break;

				case'U':
					$out .= $ts;
					break;

				case'v':
					$out .= $this->jdate_words( array( 'ss' => ( $j_y % 100 ) ), ' ' );
					break;

				case'V':
					$out .= $this->jdate_words( array( 'ss' => $j_y ), ' ' );
					break;

				case'w':
					$out .= ( $date[7] == 6 ) ? 0 : $date[7] + 1;
					break;

				case'W':
					$avs = ( ( $date[7] == 6 ) ? 0 : $date[7] + 1 ) - ( $doy % 7 );
					if ( $avs < 0 ) {
						$avs += 7;
					}
					$num = (int) ( ( $doy + $avs ) / 7 );
					if ( $avs < 4 ) {
						$num ++;
					} elseif ( $num < 1 ) {
						$num = ( $avs == 4 or $avs == ( ( ( ( ( $j_y % 33 ) % 4 ) - 2 ) == ( (int) ( ( $j_y % 33 ) * 0.05 ) ) ) ? 5 : 4 ) ) ? 53 : 52;
					}
					$aks = $avs + $kab;
					if ( $aks == 7 ) {
						$aks = 0;
					}
					$out .= ( ( $kab + 363 - $doy ) < $aks and $aks < 3 ) ? '01' : ( ( $num < 10 ) ? '0' . $num : $num );
					break;

				case'y':
					$out .= substr( $j_y, 2, 2 );
					break;

				case'Y':
					$out .= $j_y;
					break;

				case'z':
					$out .= $doy;
					break;

				default:
					$out .= $sub;
			}
		}

		return ( $tr_num != 'en' ) ? $this->tr_num( $out, 'fa', '.' ) : $out;
	}

	/*	F	*/
	public function jstrftime( $format, $timestamp = '', $none = '', $time_zone = 'Asia/Tehran', $tr_num = 'fa' ) {

		$T_sec = 0;/* <= رفع خطاي زمان سرور ، با اعداد '+' و '-' بر حسب ثانيه */

		if ( $time_zone != 'local' ) {
			date_default_timezone_set( ( $time_zone === '' ) ? 'Asia/Tehran' : $time_zone );
		}
		$ts   = $T_sec + ( ( $timestamp === '' ) ? time() : $this->tr_num( $timestamp ) );
		$date = explode( '_', date( 'h_H_i_j_n_s_w_Y', $ts ) );
		list( $j_y, $j_m, $j_d ) = $this->gregorian_to_jalali( $date[7], $date[4], $date[3] );
		$doy = ( $j_m < 7 ) ? ( ( $j_m - 1 ) * 31 ) + $j_d - 1 : ( ( $j_m - 7 ) * 30 ) + $j_d + 185;
		$kab = ( ( ( ( $j_y % 33 ) % 4 ) - 1 ) == ( (int) ( ( $j_y % 33 ) * 0.05 ) ) ) ? 1 : 0;
		$sl  = strlen( $format );
		$out = '';
		for ( $i = 0; $i < $sl; $i ++ ) {
			$sub = substr( $format, $i, 1 );
			if ( $sub == '%' ) {
				$sub = substr( $format, ++ $i, 1 );
			} else {
				$out .= $sub;
				continue;
			}
			switch ( $sub ) {

				/* Day */ case'a':
				$out .= $this->jdate_words( array( 'kh' => $date[6] ), ' ' );
				break;

				case'A':
					$out .= $this->jdate_words( array( 'rh' => $date[6] ), ' ' );
					break;

				case'd':
					$out .= ( $j_d < 10 ) ? '0' . $j_d : $j_d;
					break;

				case'e':
					$out .= ( $j_d < 10 ) ? ' ' . $j_d : $j_d;
					break;

				case'j':
					$out .= str_pad( $doy + 1, 3, 0, STR_PAD_LEFT );
					break;

				case'u':
					$out .= $date[6] + 1;
					break;

				case'w':
					$out .= ( $date[6] == 6 ) ? 0 : $date[6] + 1;
					break;

				/* Week */ case'U':
				$avs = ( ( $date[6] < 5 ) ? $date[6] + 2 : $date[6] - 5 ) - ( $doy % 7 );
				if ( $avs < 0 ) {
					$avs += 7;
				}
				$num = (int) ( ( $doy + $avs ) / 7 ) + 1;
				if ( $avs > 3 or $avs == 1 ) {
					$num --;
				}
				$out .= ( $num < 10 ) ? '0' . $num : $num;
				break;

				case'V':
					$avs = ( ( $date[6] == 6 ) ? 0 : $date[6] + 1 ) - ( $doy % 7 );
					if ( $avs < 0 ) {
						$avs += 7;
					}
					$num = (int) ( ( $doy + $avs ) / 7 );
					if ( $avs < 4 ) {
						$num ++;
					} elseif ( $num < 1 ) {
						$num = ( $avs == 4 or $avs == ( ( ( ( ( $j_y % 33 ) % 4 ) - 2 ) == ( (int) ( ( $j_y % 33 ) * 0.05 ) ) ) ? 5 : 4 ) ) ? 53 : 52;
					}
					$aks = $avs + $kab;
					if ( $aks == 7 ) {
						$aks = 0;
					}
					$out .= ( ( $kab + 363 - $doy ) < $aks and $aks < 3 ) ? '01' : ( ( $num < 10 ) ? '0' . $num : $num );
					break;

				case'W':
					$avs = ( ( $date[6] == 6 ) ? 0 : $date[6] + 1 ) - ( $doy % 7 );
					if ( $avs < 0 ) {
						$avs += 7;
					}
					$num = (int) ( ( $doy + $avs ) / 7 ) + 1;
					if ( $avs > 3 ) {
						$num --;
					}
					$out .= ( $num < 10 ) ? '0' . $num : $num;
					break;

				/* Month */ case'b':
				case'h':
					$out .= $this->jdate_words( array( 'km' => $j_m ), ' ' );
					break;

				case'B':
					$out .= $this->jdate_words( array( 'mm' => $j_m ), ' ' );
					break;

				case'm':
					$out .= ( $j_m > 9 ) ? $j_m : '0' . $j_m;
					break;

				/* Year */ case'C':
				$tmp = (int) ( $j_y / 100 );
				$out .= ( $tmp > 9 ) ? $tmp : '0' . $tmp;
				break;

				case'g':
					$jdw = ( $date[6] == 6 ) ? 0 : $date[6] + 1;
					$dny = 364 + $kab - $doy;
					$out .= substr( ( $jdw > ( $doy + 3 ) and $doy < 3 ) ? $j_y - 1 : ( ( ( 3 - $dny ) > $jdw and $dny < 3 ) ? $j_y + 1 : $j_y ), 2, 2 );
					break;

				case'G':
					$jdw = ( $date[6] == 6 ) ? 0 : $date[6] + 1;
					$dny = 364 + $kab - $doy;
					$out .= ( $jdw > ( $doy + 3 ) and $doy < 3 ) ? $j_y - 1 : ( ( ( 3 - $dny ) > $jdw and $dny < 3 ) ? $j_y + 1 : $j_y );
					break;

				case'y':
					$out .= substr( $j_y, 2, 2 );
					break;

				case'Y':
					$out .= $j_y;
					break;

				/* Time */ case'H':
				$out .= $date[1];
				break;

				case'I':
					$out .= $date[0];
					break;

				case'l':
					$out .= ( $date[0] > 9 ) ? $date[0] : ' ' . (int) $date[0];
					break;

				case'M':
					$out .= $date[2];
					break;

				case'p':
					$out .= ( $date[1] < 12 ) ? 'قبل از ظهر' : 'بعد از ظهر';
					break;

				case'P':
					$out .= ( $date[1] < 12 ) ? 'ق.ظ' : 'ب.ظ';
					break;

				case'r':
					$out .= $date[0] . ':' . $date[2] . ':' . $date[5] . ' ' . ( ( $date[1] < 12 ) ? 'قبل از ظهر' : 'بعد از ظهر' );
					break;

				case'R':
					$out .= $date[1] . ':' . $date[2];
					break;

				case'S':
					$out .= $date[5];
					break;

				case'T':
					$out .= $date[1] . ':' . $date[2] . ':' . $date[5];
					break;

				case'X':
					$out .= $date[0] . ':' . $date[2] . ':' . $date[5];
					break;

				case'z':
					$out .= date( 'O', $ts );
					break;

				case'Z':
					$out .= date( 'T', $ts );
					break;

				/* Time and Date Stamps */ case'c':
				$key = $this->jdate_words( array( 'rh' => $date[6], 'mm' => $j_m ) );
				$out .= $date[1] . ':' . $date[2] . ':' . $date[5] . ' ' . date( 'P', $ts ) . ' ' . $key['rh'] . '، ' . $j_d . ' ' . $key['mm'] . ' ' . $j_y;
				break;

				case'D':
					$out .= substr( $j_y, 2, 2 ) . '/' . ( ( $j_m > 9 ) ? $j_m : '0' . $j_m ) . '/' . ( ( $j_d < 10 ) ? '0' . $j_d : $j_d );
					break;

				case'F':
					$out .= $j_y . '-' . ( ( $j_m > 9 ) ? $j_m : '0' . $j_m ) . '-' . ( ( $j_d < 10 ) ? '0' . $j_d : $j_d );
					break;

				case's':
					$out .= $ts;
					break;

				case'x':
					$out .= substr( $j_y, 2, 2 ) . '/' . ( ( $j_m > 9 ) ? $j_m : '0' . $j_m ) . '/' . ( ( $j_d < 10 ) ? '0' . $j_d : $j_d );
					break;

				/* Miscellaneous */ case'n':
				$out .= "\n";
				break;

				case't':
					$out .= "\t";
					break;

				case'%':
					$out .= '%';
					break;

				default:
					$out .= $sub;
			}
		}

		return ( $tr_num != 'en' ) ? $this->tr_num( $out, 'fa', '.' ) : $out;
	}

	/*	F	*/
	public function jmktime( $h = '', $m = '', $s = '', $jm = '', $jd = '', $jy = '', $none = '', $timezone = 'Asia/Tehran' ) {
		if ( $timezone != 'local' ) {
			date_default_timezone_set( $timezone );
		}
		if ( $h === '' ) {
			return time();
		} else {
			list( $h, $m, $s, $jm, $jd, $jy ) = explode( '_', $this->tr_num( $h . '_' . $m . '_' . $s . '_' . $jm . '_' . $jd . '_' . $jy ) );
			if ( $m === '' ) {
				return mktime( $h );
			} else {
				if ( $s === '' ) {
					return mktime( $h, $m );
				} else {
					if ( $jm === '' ) {
						return mktime( $h, $m, $s );
					} else {
						$jdate = explode( '_', $this->jdate( 'Y_j', '', '', $timezone, 'en' ) );
						if ( $jd === '' ) {
							list( $gy, $gm, $gd ) = $this->jalali_to_gregorian( $jdate[0], $jm, $jdate[1] );

							return mktime( $h, $m, $s, $gm );
						} else {
							if ( $jy === '' ) {
								list( $gy, $gm, $gd ) = $this->jalali_to_gregorian( $jdate[0], $jm, $jd );

								return mktime( $h, $m, $s, $gm, $gd );
							} else {
								list( $gy, $gm, $gd ) = $this->$this->jalali_to_gregorian( $jy, $jm, $jd );

								return mktime( $h, $m, $s, $gm, $gd, $gy );
							}
						}
					}
				}
			}
		}
	}

	/*	F	*/
	public function jgetdate( $timestamp = '', $none = '', $timezone = 'Asia/Tehran', $tn = 'en' ) {
		$ts    = ( $timestamp === '' ) ? time() : $this->tr_num( $timestamp );
		$jdate = explode( '_', $this->jdate( 'F_G_i_j_l_n_s_w_Y_z', $ts, '', $timezone, $tn ) );

		return array(
			'seconds' => $this->tr_num( (int) $this->tr_num( $jdate[6] ), $tn ),
			'minutes' => $this->tr_num( (int) $this->tr_num( $jdate[2] ), $tn ),
			'hours'   => $jdate[1],
			'mday'    => $jdate[3],
			'wday'    => $jdate[7],
			'mon'     => $jdate[5],
			'year'    => $jdate[8],
			'yday'    => $jdate[9],
			'weekday' => $jdate[4],
			'month'   => $jdate[0],
			0         => $this->tr_num( $ts, $tn )
		);
	}

	/*	F	*/
	public function jcheckdate( $jm, $jd, $jy ) {
		list( $jm, $jd, $jy ) = explode( '_', $this->tr_num( $jm . '_' . $jd . '_' . $jy ) );
		$l_d = ( $jm == 12 ) ? ( ( ( ( ( $jy % 33 ) % 4 ) - 1 ) == ( (int) ( ( $jy % 33 ) * 0.05 ) ) ) ? 30 : 29 ) : 31 - (int) ( $jm / 6.5 );

		return ( $jm > 12 or $jd > $l_d or $jm < 1 or $jd < 1 or $jy < 1 ) ? false : true;
	}

	/*	F	*/
	public function tr_num( $str, $mod = 'en', $mf = '٫' ) {
		$num_a = array( '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '.' );
		$key_a = array( '۰', '۱', '۲', '۳', '۴', '۵', '۶', '۷', '۸', '۹', $mf );

		return ( $mod == 'fa' ) ? str_replace( $num_a, $key_a, $str ) : str_replace( $key_a, $num_a, $str );
	}

	/*	F	*/
	public function jdate_words( $array, $mod = '' ) {
		foreach ( $array as $type => $num ) {
			$num = (int) $this->tr_num( $num );
			switch ( $type ) {

				case'ss':
					$sl  = strlen( $num );
					$xy3 = substr( $num, 2 - $sl, 1 );
					$h3  = $h34 = $h4 = '';
					if ( $xy3 == 1 ) {
						$p34 = '';
						$k34 = array(
							'ده',
							'یازده',
							'دوازده',
							'سیزده',
							'چهارده',
							'پانزده',
							'شانزده',
							'هفده',
							'هجده',
							'نوزده'
						);
						$h34 = $k34[ substr( $num, 2 - $sl, 2 ) - 10 ];
					} else {
						$xy4 = substr( $num, 3 - $sl, 1 );
						$p34 = ( $xy3 == 0 or $xy4 == 0 ) ? '' : ' و ';
						$k3  = array( '', '', 'بیست', 'سی', 'چهل', 'پنجاه', 'شصت', 'هفتاد', 'هشتاد', 'نود' );
						$h3  = $k3[ $xy3 ];
						$k4  = array( '', 'یک', 'دو', 'سه', 'چهار', 'پنج', 'شش', 'هفت', 'هشت', 'نه' );
						$h4  = $k4[ $xy4 ];
					}
					$array[ $type ] = ( ( $num > 99 ) ? str_replace( array(
									'12',
									'13',
									'14',
									'19',
									'20'
								), array(
									'هزار و دویست',
									'هزار و سیصد',
									'هزار و چهارصد',
									'هزار و نهصد',
									'دوهزار'
								), substr( $num, 0, 2 ) ) . ( ( substr( $num, 2, 2 ) == '00' ) ? '' : ' و ' ) : '' ) . $h3 . $p34 . $h34 . $h4;
					break;

				case'mm':
					$key            = array(
						'فروردین',
						'اردیبهشت',
						'خرداد',
						'تیر',
						'مرداد',
						'شهریور',
						'مهر',
						'آبان',
						'آذر',
						'دی',
						'بهمن',
						'اسفند'
					);
					$array[ $type ] = $key[ $num - 1 ];
					break;

				case'rr':
					$key            = array(
						'یک',
						'دو',
						'سه',
						'چهار',
						'پنج',
						'شش',
						'هفت',
						'هشت',
						'نه',
						'ده',
						'یازده',
						'دوازده',
						'سیزده',
						'چهارده',
						'پانزده',
						'شانزده',
						'هفده',
						'هجده',
						'نوزده',
						'بیست',
						'بیست و یک',
						'بیست و دو',
						'بیست و سه',
						'بیست و چهار',
						'بیست و پنج',
						'بیست و شش',
						'بیست و هفت',
						'بیست و هشت',
						'بیست و نه',
						'سی',
						'سی و یک'
					);
					$array[ $type ] = $key[ $num - 1 ];
					break;

				case'rh':
					$key            = array( 'یکشنبه', 'دوشنبه', 'سه شنبه', 'چهارشنبه', 'پنجشنبه', 'جمعه', 'شنبه' );
					$array[ $type ] = $key[ $num ];
					break;

				case'sh':
					$key            = array(
						'مار',
						'اسب',
						'گوسفند',
						'میمون',
						'مرغ',
						'سگ',
						'خوک',
						'موش',
						'گاو',
						'پلنگ',
						'خرگوش',
						'نهنگ'
					);
					$array[ $type ] = $key[ $num % 12 ];
					break;

				case'mb':
					$key            = array(
						'حمل',
						'ثور',
						'جوزا',
						'سرطان',
						'اسد',
						'سنبله',
						'میزان',
						'عقرب',
						'قوس',
						'جدی',
						'دلو',
						'حوت'
					);
					$array[ $type ] = $key[ $num - 1 ];
					break;

				case'ff':
					$key            = array( 'بهار', 'تابستان', 'پاییز', 'زمستان' );
					$array[ $type ] = $key[ (int) ( $num / 3.1 ) ];
					break;

				case'km':
					$key            = array(
						'فر',
						'ار',
						'خر',
						'تی‍',
						'مر',
						'شه‍',
						'مه‍',
						'آب‍',
						'آذ',
						'دی',
						'به‍',
						'اس‍'
					);
					$array[ $type ] = $key[ $num - 1 ];
					break;

				case'kh':
					$key            = array( 'ی', 'د', 'س', 'چ', 'پ', 'ج', 'ش' );
					$array[ $type ] = $key[ $num ];
					break;

				default:
					$array[ $type ] = $num;
			}
		}

		return ( $mod === '' ) ? $array : implode( $mod, $array );
	}


	/** Gregorian & Jalali (Hijri_Shamsi,Solar) date converter Functions
	 * Author: JDF.SCR.IR =>> Download Full Version : http://jdf.scr.ir/jdf
	 * License: GNU/LGPL _ Open Source & Free _ Version: 2.70 : [2017=1395]
	 * --------------------------------------------------------------------
	 * 1461 = 365*4 + 4/4   &  146097 = 365*400 + 400/4 - 400/100 + 400/400
	 * 12053 = 365*33 + 32/4    &    36524 = 365*100 + 100/4 - 100/100   */

	/*	F	*/
	public function gregorian_to_jalali( $gy, $gm, $gd, $mod = '' ) {
		list( $gy, $gm, $gd ) = explode( '_', $this->tr_num( $gy . '_' . $gm . '_' . $gd ) );/* <= Extra :اين سطر ، جزء تابع اصلي نيست */
		$g_d_m = array( 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 );
		if ( $gy > 1600 ) {
			$jy = 979;
			$gy -= 1600;
		} else {
			$jy = 0;
			$gy -= 621;
		}
		$gy2  = ( $gm > 2 ) ? ( $gy + 1 ) : $gy;
		$days = ( 365 * $gy ) + ( (int) ( ( $gy2 + 3 ) / 4 ) ) - ( (int) ( ( $gy2 + 99 ) / 100 ) ) + ( (int) ( ( $gy2 + 399 ) / 400 ) ) - 80 + $gd + $g_d_m[ $gm - 1 ];
		$jy   += 33 * ( (int) ( $days / 12053 ) );
		$days %= 12053;
		$jy   += 4 * ( (int) ( $days / 1461 ) );
		$days %= 1461;
		$jy   += (int) ( ( $days - 1 ) / 365 );
		if ( $days > 365 ) {
			$days = ( $days - 1 ) % 365;
		}
		if ( $days < 186 ) {
			$jm = 1 + (int) ( $days / 31 );
			$jd = 1 + ( $days % 31 );
		} else {
			$jm = 7 + (int) ( ( $days - 186 ) / 30 );
			$jd = 1 + ( ( $days - 186 ) % 30 );
		}

		return ( $mod === '' ) ? array( $jy, $jm, $jd ) : $jy . $mod . $jm . $mod . $jd;
	}

	/*	F	*/
	public function jalali_to_gregorian( $jy, $jm, $jd, $mod = '' ) {
		list( $jy, $jm, $jd ) = explode( '_', $this->tr_num( $jy . '_' . $jm . '_' . $jd ) );/* <= Extra :اين سطر ، جزء تابع اصلي نيست */
		if ( $jy > 979 ) {
			$gy = 1600;
			$jy -= 979;
		} else {
			$gy = 621;
		}
		$days = ( 365 * $jy ) + ( ( (int) ( $jy / 33 ) ) * 8 ) + ( (int) ( ( ( $jy % 33 ) + 3 ) / 4 ) ) + 78 + $jd + ( ( $jm < 7 ) ? ( $jm - 1 ) * 31 : ( ( $jm - 7 ) * 30 ) + 186 );
		$gy   += 400 * ( (int) ( $days / 146097 ) );
		$days %= 146097;
		if ( $days > 36524 ) {
			$gy   += 100 * ( (int) ( -- $days / 36524 ) );
			$days %= 36524;
			if ( $days >= 365 ) {
				$days ++;
			}
		}
		$gy   += 4 * ( (int) ( ( $days ) / 1461 ) );
		$days %= 1461;
		$gy   += (int) ( ( $days - 1 ) / 365 );
		if ( $days > 365 ) {
			$days = ( $days - 1 ) % 365;
		}
		$gd = $days + 1;
		foreach (
			array(
				0,
				31,
				( ( ( $gy % 4 == 0 ) and ( $gy % 100 != 0 ) ) or ( $gy % 400 == 0 ) ) ? 29 : 28,
				31,
				30,
				31,
				30,
				31,
				31,
				30,
				31,
				30,
				31
			) as $gm => $v
		) {
			if ( $gd <= $v ) {
				break;
			}
			$gd -= $v;
		}

		return ( $mod === '' ) ? array( $gy, $gm, $gd ) : $gy . $mod . $gm . $mod . $gd;
	}


}