使用PHP Socket写的POP3类(5)

//获取邮件数量和字节数(返回数组)
    function getMailSum($intReturnType=2)
    {
        if (!$this->getIsConnect() && $this->bolIsLogin)
        {
            return false;
        }
        $this->sendCommand("STAT");
        $strLineResponse = $this->getLineResponse();
        if (!$this->getRestIsSucceed())
        {
            return false;
        }
        if ($intReturnType==1)
        {
            return     $this->strResponse;
        }
        else
        {
            $arrResponse = explode(" ", $this->strResponse);
            if (!is_array($arrResponse) || count($arrResponse)<=0)
            {
                $this->setMessage('STAT command response message is error', 2006);
                return false;
            }
            return array($arrResponse[1], $arrResponse[2]);
        }
    }

//获取指定邮件得session Id
    function getMailSessId($intMailId, $intReturnType=2)
    {
        if (!$this->getIsConnect() && $this->bolIsLogin)
        {
            return false;
        }
        if (!$intMailId = intval($intMailId))
        {
            $this->setMessage('Mail message id invalid', 1005);
            return false;
        }
        $this->sendCommand("UIDL ". $intMailId);
        $this->getLineResponse();
        if (!$this->getRestIsSucceed())
        {
            return false;
        }
        if ($intReturnType == 1)
        {
            return     $this->strResponse;
        }
        else
        {
            $arrResponse = explode(" ", $this->strResponse);
            if (!is_array($arrResponse) || count($arrResponse)<=0)
            {
                $this->setMessage('UIDL command response message is error', 2006);
                return false;
            }
            return array($arrResponse[1], $arrResponse[2]);
        }
    }

//取得某个邮件的大小
    function getMailSize($intMailId, $intReturnType=2)
    {
        if (!$this->getIsConnect() && $this->bolIsLogin)
        {
            return false;
        }
        $this->sendCommand("LIST ".$intMailId);
        $this->getLineResponse();
        if (!$this->getRestIsSucceed())
        {
            return false;
        }
        if ($intReturnType == 1)
        {
            return $this->strResponse;
        }
        else
        {
            $arrMessage = explode(' ', $this->strResponse);
            return array($arrMessage[1], $arrMessage[2]);
        }
    }