title: How to change the default format date is 01-01-1970 to null (PHP)?
body: <p>Because my date data in my database is null, and its showing 01-01-1970, how to make the data still null not default ?</p>
  <pre><code>&lt;td&gt;&lt;?php echo date('d-m-Y', strtotime($us-&gt;tgl)) ?&gt;
  </code></pre>
  <p><a href="https://i.stack.imgur.com/d0maN.jpg" rel="nofollow noreferrer">enter image description here</a></p>
  <p>i just want the date in field is null not default 01-01-1970</p>