Php self-made encryption and decryption algorithm | php and computation encryption and decryption | php and computation-PHP source code

Php self-made encryption and decryption algorithms | php and computation encryption and decryption | php and computation 2. [Code][PHP] code

class CCEncode{public static $instance = NULL;public static function getInstance(){if(is_null(self::$instance)){self::$instance = new self;}return self::$instance;}protected function getByte($data){$length = strlen($data);for($i = 0; $i < $length; $i ++){$tmpList[] = ord($data{$i});}return $tmpList;}protected function getChar($data, $string = ''){$length = count($data);foreach($data as $value){$string .= chr($value);}return $string;}public function encrypt($data, $key){$dataArr = $this->getByte($data);$keyArr = $this->getByte($key);$lengthA = count($dataArr);$lengthB = count($keyArr);for($i = 0; $i < $lengthA; $i ++){$tmpList[] = (0xFF & $dataArr[$i]) + (0xFF & $keyArr[$i % $lengthB]);}return implode('@', $tmpList);}public function decrypt($data, $key){$dataArr = explode('@', $data);$keyArr = $this->getByte($key);$lengthA = count($dataArr);$lengthB = count($keyArr);for($i = 0; $i < $lengthA; $i ++){$tmpList[] = $dataArr[$i] - (0xFF & $keyArr[$i % $lengthB]);}return $this->getChar($tmpList);}}