public function removeParameter($key)
    {
        if (isset($this->parameters[$key])) {
            unset($this->parameters[$key]);
            return true;
        } else {
            return false;
        }
    }
public function removeParameter($key)
    {
        if (isset($this->parameters[$key])) {
            unset($this->parameters[$key]);
            return true;
        } else {
            return false;
        }
    }
public function removeParameter ( $ key ) { if ( isset ( $ this -> parameters [ $ key ] ) ) { unset ( $ this -> parameters [ $ key ] ) ; return true ; } else { return false ; } }
Remove a single parameter by index from the parameters array.
@param mixed $key.
@return boolean $succes.
Remove a single parameter by index from the parameters array .