title: PHP - How to count 60 days from the add date
body: <p>Let me know :)</p>
  
  <pre><code>$add_date = date ("Y-m-d H:m:s"); 
  $expiry_date = 'how?';
  </code></pre>
  
  <p>How to insert into db the <code>$expiry_date</code> for 60 days. mysql format is datetime</p>