Days between dates Calculator in PHP

Days between dates Calculator in PHP. this concept current date based on number days calculation here get number days to add current date to convert date format.

LIVE DEMO

PHP

<?php
 if(isset($_POST['submit'])) 
 {
     extract($_POST); 
     $currentime=date('M-d-Y');               
     $datec = date('M-d-Y',strtotime($currentime));
     $xmasDay = new DateTime($datec.' +'.$days.'days');
     $date_expired=$xmasDay->format('M-d-Y').substr($currentime, 11); 
     echo  $days .' days after date is '.$date_expired;
 }
 ?>

HTML

<form method="post">
  <b>Number of days from now:</b>
  <input type="number"  min="1" placeholder="50" name="days" />
  <input type="submit" name="submit" value="Go" />
 </form>