public function get($key)
    {
        if ($this->has($key)) {
            return $this->params[$key];
        }

        throw new \InvalidArgumentException(sprintf("Config key %s doest not exist", $key));
    }
public function get($key)
    {
        if ($this->has($key)) {
            return $this->params[$key];
        }

        throw new \InvalidArgumentException(sprintf("Config key %s doest not exist", $key));
    }
public function get ( $ key ) { if ( $ this -> has ( $ key ) ) { return $ this -> params [ $ key ] ; } throw new \ InvalidArgumentException ( sprintf ( "Config key %s doest not exist" , $ key ) ) ; }
Get a config value for a key

@param  $key
@return mixed
@throws \InvalidArgumentException
Get a config value for a key