Date conversion in php 1970-01-01
<p>Hi all I am using date conversion as bellow  </p>

<pre><code>$startdate='12/10/2012'; 
$newstartdate = date('Y-m-d',strtotime($startdate));
</code></pre>

<p>some time it works but some time it shows <strong>1970-01-01</strong></p>

<p>Example: 12/10/2012 works
         13/10/2012 does not works shows 1970-01-01</p>
