title: How to load a library from vendor folder symfony?
body: <p>I have downloaded a library with composer. Now I want to require that file from vendor directory in my controller. So how do I require that file. </p>
  
  <p>To be more specific I want to require this library<br>
  <a href="https://github.com/jumbojett/OpenID-Connect-PHP" rel="nofollow noreferrer">https://github.com/jumbojett/OpenID-Connect-PHP</a></p>