How to use / load / include zend-framework3 in a PHP script

I have a PHP script that takes data in the database to feed an e-mail function. Such a function is in a plugin in zend-framework 3. As it stands today, it is not possible to feed the function since it is in zend and the script is not. I want to know if there is a way to load zend into PHP scrip so that zend can recognize it or vice versa. Thanks in advance.