title: CarbonInterval using Carbon - Laravel 4.2
body: <p>I don't know how to implement CarbonInterval in laravel 4.2; I don't know where to place this code.</p>
  
  <pre><code>&lt;?php
  class CarbonInterval extends \DateInterval
  {
      // code here
  }
  </code></pre>
  
  <p>And test using</p>
  
  <pre><code>echo CarbonInterval::months(3);
  </code></pre>
  
  <p>I don't know whether I will create a class and add it to the classmap in composer or I will just add it to the Carbon.php </p>