title: How to change LOCALE language on Lumen
body: <p>I saw this <a href="https://stackoverflow.com/questions/31244624/lumen-fails-to-change-locale">question</a>, but it don't answers me.</p>
  
  <p>I have set <code>APP_LOCALE=fr</code> in the <code>.env</code> file, but I still get date in english format :</p>
  
  <pre><code>string 'Thursday, 09h00' (length=15)
  </code></pre>
  
  <p>And I would like to get :</p>
  
  <pre><code>string 'Jeudi, 09h00' (length=12)
  </code></pre>
  
  <p>How to change from english to french on <a href="http://lumen.laravel.com/docs/installation" rel="nofollow noreferrer">Lumen Framework</a> ?</p>
  
  <p>(Added PHP tag to be more seen)</p>