title: Incrementing dates with Carbon
body: <p>I'm trying to create an array of blackout dates for a reservation system in Laravel 4.  There is one test row in my db with a start_date of 2016-01-24 and end_date of 2016-01-29.</p>
  
  <p>This is the code that pulls the row and loops through the dates using Carbon to increment by one day &amp; add it to an array:</p>
  
  <pre><code>$reserved = Reservation::where('property_id', $property-&gt;id)-&gt;get();
  
  $blackoutDays = [];
  
  foreach($reserved as $r)
  {
      $start = new \Carbon\Carbon($r-&gt;start_date);
      $end = new \Carbon\Carbon($r-&gt;end_date);
      $days = $start-&gt;diff($end)-&gt;days;
  
      for($i = 0; $i &lt;= $days; $i++)
      {
          $date = '';
          $date = $start-&gt;addDays($i);
  
          $blackoutDays[] = $date-&gt;format('Y-m-j');
      }
  }
  </code></pre>
  
  <p>What I'm trying to get in $blackoutDays is:</p>
  
  <blockquote>
    <p>["2016-01-24", "2016-01-25", "2016-01-26", "2016-01-27", "2016-01-28", "2016-01-29"]</p>
  </blockquote>
  
  <p>But what I'm actually getting is this:</p>
  
  <blockquote>
    <p>["2016-01-24", "2016-01-25", "2016-01-27", "2016-01-30", "2016-02-3", "2016-02-8"]</p>
  </blockquote>
  
  <p>Does anyone know why this is happening / how to fix it?  Is there a better way of doing this?</p>