title: PHP Carbon / Laravel Eloquent - Check if DateTime value is for the current day
body: <p>I am working on a booking system and need to select only the records where a certain field is for today. Not today and in the future, but only today.</p>
  
  <p>The query currently is:</p>
  
  <pre><code>$advancedBookings = Booking::where('type', 2)
      -&gt;whereNull('estimated_booking_time')
      -&gt;where('requested_booking_time', ?????);
  
  $advancedBookings-&gt;get();
  </code></pre>
  
  <p>The requested_booking_time is the field that I wish to be checked, the date stored is in this format:</p>
  
  <pre><code>2017-08-23 08:00:00
  </code></pre>
  
  <p>So I want to only select rows that are on the same day as the current day.</p>