code: public function serverStart($sid)
      {
          if ($sid == $this->serverSelectedId()) {
              $this->serverDeselect();
          }
  
          $this->execute("serverstart", array("sid" => $sid));
          $this->serverListReset();
  
          Signal::getInstance()->emit("notifyServerstarted", $this, $sid);
      }
docs: Starts the virtual server specified by ID.
  
  @param  integer $sid
  @return void