title: Set session variable in laravel
body: <p>I would like to set a variable in the session using laravel this way</p>
  
  <pre><code>Session::set('variableName')=$value;
  </code></pre>
  
  <p>but the problem is that I don't know where to put this code, 'cause I would like to set it for one time (when the guest visite the home page or any other page)?
  The main idea is to use a global variable to use it in all application controllers, I heared about something related to configuration variables but I'm not sure if it will be a good Idea to use config variables or only the session?
  Thanks</p>