title: Dynamically adding x number of days to a date in PHP
body: <p>I have a scenario where I have to add x number if days to a variable containing date. This x will be dynamic and cannot be guessed. </p>
  
  <p>Any suggestions on how I can implement this?</p>
  
  <pre><code>$ticket_created_on_date_time = '2016-08-31 09:55:01'
  $in_between_days = 2;
  </code></pre>