Sometimes you need to be able to get current server URL inside controller in your Zend Framework 2 application. As you might know, you won’t be able to use $this->serverUrl() method in the controller as it’s a part of helper.
So, here is the code that I am using to get server URL in controller :
$server_url = $this->getRequest()->getUri()->getScheme() . '://' . $this->getRequest()->getUri()->getHost();
Probably it’s not the best solution but it works for now