getid3_lib::Dec2Bin( int|string $number ): string

450	public static function Dec2Bin($number) {451		if (!is_numeric($number)) {452			// https://github.com/JamesHeinrich/getID3/issues/299453			trigger_error('TypeError: Dec2Bin(): Argument #1 ($number) must be numeric, '.gettype($number).' given', E_USER_WARNING);454			return '';455		}456		$bytes = array();457		while ($number >= 256) {458			$bytes[] = (int) (($number / 256) - (floor($number / 256))) * 256;459			$number = floor($number / 256);460		}461		$bytes[] = (int) $number;462		$binstring = '';463		foreach ($bytes as $i => $byte) {464			$binstring = (($i == count($bytes) - 1) ? decbin($byte) : str_pad(decbin($byte), 8, '0', STR_PAD_LEFT)).$binstring;465		}466		return $binstring;467	}