QuickBooks/MerchantService.php
protected function _gateway()
	{
		if ($this->_test)
		{
			$this->_log('Using TEST gateway: ' . $this->_test_gateway, QUICKBOOKS_LOG_DEVELOP);
			return $this->_test_gateway;
		}
		
		$this->_log('Using LIVE gateway: ' . $this->_live_gateway, QUICKBOOKS_LOG_DEVELOP);
		return $this->_live_gateway;
	}
protected function _gateway()
	{
		if ($this->_test)
		{
			$this->_log('Using TEST gateway: ' . $this->_test_gateway, QUICKBOOKS_LOG_DEVELOP);
			return $this->_test_gateway;
		}
		
		$this->_log('Using LIVE gateway: ' . $this->_live_gateway, QUICKBOOKS_LOG_DEVELOP);
		return $this->_live_gateway;
	}
Get the HTTP/HTTPS gateway to use

@return string