public function getKey($withPrefix = false)
    {
        $key = ($withPrefix) ? $this->prefix : '';
        $key .= $this->key;

        return $key;
    }
public function getKey($withPrefix = false)
    {
        $key = ($withPrefix) ? $this->prefix : '';
        $key .= $this->key;

        return $key;
    }
public function getKey ( $ withPrefix = false ) { $ key = ( $ withPrefix ) ? $ this -> prefix : '' ; $ key .= $ this -> key ; return $ key ; }
Get the argument Key

@param  bool   $withPrefix [optional] Default is false
@return string
Get the argument Key