/**
  * The open connection callback
  * 
  * @param integer $id   The client's ID
  * @param string  $addr The client's IP address
  * @param integer $port The client's port
  * 
  * @return boolean true
  */
 function onOpen($id, $addr, $port = null)
 {
     $post = array("m" => $this->module, "dosql" => $this->controller, "port" => $this->port, "message" => base64_encode("TCP_Open"), "client_addr" => $addr, "client_port" => $port, "suppressHeaders" => 1);
     $url = $this->call_url . "/index.php?login={$this->username}:{$this->password}";
     $this->requestHttpPost($url, $post);
     return parent::onOpen($id, $addr, $port);
 }