public function close()
    {
        parent::close();
        $this->closeWrite();
        if (is_resource($this->pd)) {
            proc_close($this->pd);
        }
    }
public function close()
    {
        parent::close();
        $this->closeWrite();
        if (is_resource($this->pd)) {
            proc_close($this->pd);
        }
    }
public function close ( ) { parent :: close ( ) ; $ this -> closeWrite ( ) ; if ( is_resource ( $ this -> pd ) ) { proc_close ( $ this -> pd ) ; } }
Close the process
@return void
Close the process