title: strtotime is not working proper in php for future date?
body: <p>When i am converting date from d-m-Y in Y-m-d format. i am facing some issues for it.</p>
  
  <p>example 19/08/1989 will convert into 1989/08/19 (it's correct),</p>
  
  <p>19/08/2059 will convert into  1970/01/01 (it's not correct)</p>
  
  <pre><code>$re_date = date('Y-m-d', strtotime($_POST['re_date']));
  </code></pre>
  
  <p>Help me please. thanks in advance.</p>