Map interfaces to concrete classes with XML in Magento

Let’s search PhpStorm for this class name Magento\Framework\App\RequestInterface and open up this file.

This interface defines functions used to retrieve information related to the current web request. If we look through it we’ll see getModuleName(), getActionName(), getParam(), setParams() & more.

You’ll notice a little “i” icon in PhpStorm. Click it, and you’ll see all classes which implement this interface. This is a major time saver!

You’ll notice that t...