public function ascii($array) {

		$ascii = '';

		foreach ($array as $utf8) {
			if ($utf8 < 128) {
				$ascii .= chr($utf8);
			} elseif ($utf8 < 2048) {
				$ascii .= chr(192 + (($utf8 - ($utf8 % 64)) / 64));
				$ascii .= chr(128 + ($utf8 % 64));
			} else {
				$ascii .= chr(224 + (($utf8 - ($utf8 % 4096)) / 4096));
				$ascii .= chr(128 + ((($utf8 % 4096) - ($utf8 % 64)) / 64));
				$ascii .= chr(128 + ($utf8 % 64));
			}
		}

		return $ascii;

	}