title: php strtotime funtion is not giving output
body: <p>I am using strtotime() function to compare two dates, one is today and second from DB, It was working fine some days ago but today its not working
  Here is the code</p>
  <pre><code>$today=strtotime(date(&quot;d-M-Y H:i A&quot;));
  $registration_start_date=strtotime($model-&gt;registration_start_date);
  </code></pre>
  <p>in this code there is no output for $today even I have tried to echo just date and date was printed out but when I kept date(&quot;d-M-Y H:i A&quot;) in strtotime its empty, even $registration_start_date=strtotime($model-&gt;registration_start_date); is giving proper output.
  kindly help out.
  Thanks</p>