original_string: protected function _setOptions()
      {
          $this->_Memcached->setOption(Memcached::OPT_LIBKETAMA_COMPATIBLE, true);
  
          $serializer = strtolower($this->_config['serialize']);
          if (!isset($this->_serializers[$serializer])) {
              throw new InvalidArgumentException(
                  sprintf('%s is not a valid serializer engine for Memcached', $serializer)
              );
          }
  
          if ($serializer !== 'php' &&
              !constant('Memcached::HAVE_' . strtoupper($serializer))
          ) {
              throw new InvalidArgumentException(
                  sprintf('Memcached extension is not compiled with %s support', $serializer)
              );
          }
  
          $this->_Memcached->setOption(
              Memcached::OPT_SERIALIZER,
              $this->_serializers[$serializer]
          );
  
          // Check for Amazon ElastiCache instance
          if (defined('Memcached::OPT_CLIENT_MODE') &&
              defined('Memcached::DYNAMIC_CLIENT_MODE')
          ) {
              $this->_Memcached->setOption(
                  Memcached::OPT_CLIENT_MODE,
                  Memcached::DYNAMIC_CLIENT_MODE
              );
          }
  
          $this->_Memcached->setOption(
              Memcached::OPT_COMPRESSION,
              (bool)$this->_config['compress']
          );
      }
code: protected function _setOptions()
      {
          $this->_Memcached->setOption(Memcached::OPT_LIBKETAMA_COMPATIBLE, true);
  
          $serializer = strtolower($this->_config['serialize']);
          if (!isset($this->_serializers[$serializer])) {
              throw new InvalidArgumentException(
                  sprintf('%s is not a valid serializer engine for Memcached', $serializer)
              );
          }
  
          if ($serializer !== 'php' &&
              !constant('Memcached::HAVE_' . strtoupper($serializer))
          ) {
              throw new InvalidArgumentException(
                  sprintf('Memcached extension is not compiled with %s support', $serializer)
              );
          }
  
          $this->_Memcached->setOption(
              Memcached::OPT_SERIALIZER,
              $this->_serializers[$serializer]
          );
  
          // Check for Amazon ElastiCache instance
          if (defined('Memcached::OPT_CLIENT_MODE') &&
              defined('Memcached::DYNAMIC_CLIENT_MODE')
          ) {
              $this->_Memcached->setOption(
                  Memcached::OPT_CLIENT_MODE,
                  Memcached::DYNAMIC_CLIENT_MODE
              );
          }
  
          $this->_Memcached->setOption(
              Memcached::OPT_COMPRESSION,
              (bool)$this->_config['compress']
          );
      }
code_tokens: protected function _setOptions ( ) { $ this -> _Memcached -> setOption ( Memcached :: OPT_LIBKETAMA_COMPATIBLE , true ) ; $ serializer = strtolower ( $ this -> _config [ 'serialize' ] ) ; if ( ! isset ( $ this -> _serializers [ $ serializer ] ) ) { throw new InvalidArgumentException ( sprintf ( '%s is not a valid serializer engine for Memcached' , $ serializer ) ) ; } if ( $ serializer !== 'php' && ! constant ( 'Memcached::HAVE_' . strtoupper ( $ serializer ) ) ) { throw new InvalidArgumentException ( sprintf ( 'Memcached extension is not compiled with %s support' , $ serializer ) ) ; } $ this -> _Memcached -> setOption ( Memcached :: OPT_SERIALIZER , $ this -> _serializers [ $ serializer ] ) ; // Check for Amazon ElastiCache instance if ( defined ( 'Memcached::OPT_CLIENT_MODE' ) && defined ( 'Memcached::DYNAMIC_CLIENT_MODE' ) ) { $ this -> _Memcached -> setOption ( Memcached :: OPT_CLIENT_MODE , Memcached :: DYNAMIC_CLIENT_MODE ) ; } $ this -> _Memcached -> setOption ( Memcached :: OPT_COMPRESSION , ( bool ) $ this -> _config [ 'compress' ] ) ; }
docstring: Settings the memcached instance
  
  @return void
  @throws \InvalidArgumentException When the Memcached extension is not built
  with the desired serializer engine.
docstring_tokens: Settings the memcached instance