reginaldojunior / winners

	 *									If places is negative, HEX2OCT returns the #NUM! error value.

	 * @return	string

	 */

	public static function HEXTOOCT($x, $places=null) {

		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);

		$places	= PHPExcel_Calculation_Functions::flattenSingleValue($places);

		if (is_bool($x)) {

			return PHPExcel_Calculation_Functions::VALUE();

		}

		$x = (string) $x;

		if (strlen($x) > preg_match_all('/[0123456789ABCDEF]/',strtoupper($x),$out)) {

			return PHPExcel_Calculation_Functions::NaN();

		}

		$octVal = decoct(hexdec($x));

		return self::_nbrConversionFormat($octVal,$places);

	}	//	function HEXTOOCT()

	/**

	 *									value.

	 * @return	string

	 */

	public static function OCTTOBIN($x, $places=null) {

		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);

		$places	= PHPExcel_Calculation_Functions::flattenSingleValue($places);

		if (is_bool($x)) {

			return PHPExcel_Calculation_Functions::VALUE();

		}

		$x = (string) $x;

		if (preg_match_all('/[01234567]/',$x,$out) != strlen($x)) {

			return PHPExcel_Calculation_Functions::NaN();

		}

		$r = decbin(octdec($x));

		return self::_nbrConversionFormat($r,$places);

	}	//	function OCTTOBIN()

	/**

	 *									If places is negative, OCT2HEX returns the #NUM! error value.

	 * @return	string

	 */

	public static function OCTTOHEX($x, $places=null) {

		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);

		$places	= PHPExcel_Calculation_Functions::flattenSingleValue($places);

		if (is_bool($x)) {

			return PHPExcel_Calculation_Functions::VALUE();

		}

		$x = (string) $x;

		if (preg_match_all('/[01234567]/',$x,$out) != strlen($x)) {

			return PHPExcel_Calculation_Functions::NaN();

		}

		$hexVal = strtoupper(dechex(octdec($x)));

		return self::_nbrConversionFormat($hexVal,$places);

	}	//	function OCTTOHEX()

	/**